Evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, mango, and pine.
An evergreen plant in botany is one that has leaves that stay healthy and green for more than one growing season. In contrast to deciduous plants, which fully lose their foliage in the winter or dry season, this also applies to plants that only retain their leaves in warm climes. Evergreen trees also shed their leaves, although they do so gradually rather than all at once. While species occurring in seasonally arid regions may be either evergreen or deciduous, the majority of tropical rainforest plants are regarded to be evergreens, replacing their leaves gradually throughout the year as the leaves age and fall. Most plants that thrive in warm, temperate climates are evergreen. A smaller number of plants are evergreen in cool temperate areas.
To know more about evergreens, click here https://brainly.com/question/11848066
#SPJ4
compared to high-input industrialized monoculture, low-input polyculture ____.
Low-input polyculture generates higher yields with less energy per unit of yield compared to high-input industrialised monoculture, which generates lower yields with more energy per unit of yield.
Low input polyculture: what is it?Polyculture, or mixed farming with genetically diverse plants and animals raised in harmony, is a result of agricultural diversity. Low input equals organic, or something very similar. When properly run, diverse, organic, or low-input farms can be among the most productive of all in terms of output per unit of land.
What are the drawbacks of contemporary synthetic pesticides?Human health hazards associated with exposure to synthetic pesticides include elevated incidences of cancer, birth abnormalities, and infertility issues.
To know more about polyculture visit:-
https://brainly.com/question/1616326
#SPJ4
The small structures within the cytoplasm of a eukaryotic cell that perform specific functions are called?
Within eukaryotes, organelles perform specialized tasks like photosynthesis, energy production, and membrane synthesis.
The majority of them are membrane-bound structures that serve as the locations of particular biochemical reactions. Because it houses a cell's DNA, the nucleus is one of the most crucial eukaryotic organelles. Chloroplasts and mitochondria are two additional crucial organelles that are thought to have evolved from simple single-celled organisms and play significant roles in energy conversion. Because they transform energy from one form to another—from food nutrients to ATP—mitochondria in eukaryotic cells behave somewhat like batteries. Accordingly, cells with high metabolic demands can satisfy their higher energy requirements by containing more mitochondria. For instance, muscle cells from athletes have more mitochondria than muscle cells from sedentary individuals.
Learn more about ' organelles ' visit here;
https://brainly.com/question/2135497
#SPJ4
where are the paired sympathetic trunk ganglia located?
One sympathetic trunk ganglia on each side are arranged anteriorly and laterally to the vertebral column.
Ganglia are found in the sympathetic trunks, which are two long chains of ganglia that run from the base of the skull to the coccyx on each side of the vertebral column. The term for these structures is paravertebral ganglia.
The paired bundle of nerve fibers known as the sympathetic trunks (sympathetic chain, gangliated cord) extends from the base of the skull to the coccyx. The sympathetic nervous system relies heavily on them. The hypogastric plexus and celiac plexus is located in the abdominal portion of the sympathetic trunk.
Know more about vertebral column here: https://brainly.com/question/29521878
#SPJ4
the building blocks of nucleic acids are monomers called
A. pyrimidines and purines
B. polysaccharides
C. DNA and RNA
D. fatty acids
E. nucleotides
The building blocks of the nucleic acids are monomers which are known as the nucleotides.
The correct option is option e.
Nucleic acids are the macromolecules which are found in the bodies of humans and other organisms present in nature and are majorly responsible for transfer of genetic information from the parental generations to the offspring. These nucleic acids are either DNA or RNA.
Nucleotides are basically the monomers of these nucleic acids, DNA and RNA. A nucleotide basically consists of a nitrogenous base (which can be adenine, thymine, guanine, cytosine, or uracil), a phosphate group and also a 5−carbon sugar.
To know more about nucleotides here
https://brainly.com/question/28178584
#SPJ4
which capillary exchange mechanism results from there being more albumin in the blood than in the tissues?
Oncotic pressure is the capillary exchange mechanism results from there being more albumin in the blood as compared to the tissues.
Oncotic pressure, which is also known as colloid osmotic-pressure, is a basically a form of osmotic pressure which is induced by the proteins, mainly albumin in a blood vessel's plasma which basically causes a pull on fluid back into the capillary.
It basically shows the opposing effect of both hydrostatic blood pressure pushing water as well as small molecules out of the blood and into the interstitial spaces which are present within the arterial end of the capillaries and interstitial colloidal osmotic pressure.
These interacting factors happen to determine the partition balancing of the extracellular water between the blood plasma and also outside the blood stream. Oncotic pressure therefore strongly affects the physiological function of the circulatory system.
To know more about oncotic pressure here
https://brainly.com/question/28588069
#SPJ4
Which of the following activities contributes most to climate change?
A. Turning on a light
B. Running nile
C. Heating your home
D. Reading a book
Identify characteristics that define protists. What characteristics of Chlamydomonas are typical of protists in general? Check All That Apply a. its mode of nutrition b. its size c. its aquatic habitat d. its type of motility
d. the lack of characteristics that define members of the plant, animal, and fungal kingdoms e. its ecological role
The characteristics that define protists and Chlamydomonas are typical of protists in general is that its mode of nutrition therefore the correct option is A.
Protists are a large and different group of organisms that include unicellular and multicellular eukaryotic organisms. Characteristics that define protists include their mode of nutrition( autotrophic, heterotrophic, or mixotrophic), their size( ranging from bitsy to macroscopic), their submarine niche,
Their type of the motility( flagella, cilia, pseudopods), and their ecological part. numerous protists, like Chlamydomonas, are single- celled, as submarine organisms that move using flagella. Chlamydomonas generally parade autotrophic nutrition, using light energy from the sun to produce their own food.
To know more about Chlamydomonas visit:
https://brainly.com/question/920441
#SPJ4
What organ is responsible for producing most of the plasma proteins known as the complement system?O liverO heartO kidneyO spleen
Answer: Liver
Explanation:
which term refers to the supportive framework of protein filaments and tubules found in the cytoplasm?
The term refers to the supportive framework of protein filaments and tubules found in the cytoplasm in the cytoskeleton.
А frаmework of protein scаffolds cаlled the cytoskeleton provides the cytoplаsm аnd the cell with structure. The cytoskeleton consists of threаd-like filаments аnd tubules thаt criss-cross the cytoplаsm. Аs its nаme suggests, the cytoskeleton is like а cellulаr “skeleton.” It helps the cell mаintаin its shаpe аnd аlso helps to hold cell structures such аs orgаnelles in plаce within the cytoplаsm
The eukаryotic cytoskeleton is mаde up of а network of long, thin protein fibers. These threаdlike proteins continuаlly rebuild to аdаpt to the cell's constаntly chаnging needs. Three mаin kinds of cytoskeleton fibers аre microtubules, intermediаte filаments, аnd microfilаments.
For more information about the cytoskeleton refers to the link:
https://brainly.com/question/15200286
#SPJ4
two genes of a flower, one controlling blue (b) versus white (b) petals and the other controlling round (r) versus oval (r) stamens, are linked and are 10 map units apart. you cross a homozygous blue-oval plant with a homozygous white-round plant. the resulting f1 progeny are crossed with homozygous white-oval plants, and 1,000 f2 progeny are obtained. how many f2 plants of each of the four phenotypes do you expect? blue-oval : white-round: blue-round : white-oval express your answer as four whole numbers separated by colons (for example, 400:300:200:100).
The physical traits of an organism, such as its size, color, and form, are referred to as phenotypes. The F2 generation of plants have phenotypes that combine their color (purple or white) and shape (round or wrinkled).
What are the possible results of homozygous cross?A homozygous blue-oval plant was crossed with a homozygous white-oval plant to produce F1 progeny, which were then crossed with white-oval plants to produce 1000 F2 progeny plants. The petals and other regulating round vs oval plants were linked and 10 map units apart.
In addition to behavioral factors like IQ and temperament, phenotypes in the F2 generation also include observable characteristics that are a combination of genes from both parents. Phenomena will include BbRr (purple, round), Bbrr(purple, wrinkled).
Therefore, The predicted ratio of the four phenotypes in F2 plants is 250:250:250:250.
Learn more about homozygous here:
https://brainly.com/question/376455
#SPJ4
what is the main purpose of epidemiologic surveillance?
The main purpose of epidemiologic surveillance is to determine the need for public health action including investigation, control, and prevention measures.
The goal of public health epidemiologic surveillance, often known as "information for action", is to illustrate the persistent patterns of illness prevalence and disease risk so that effective and efficient investigation, management, and preventative methods can be used.
In order to plan, implement, and assess public health programmes, epidemiological surveillance is the process of gathering, assessment, understanding, and timely dissemination of health data. Event-based surveillance and indicator-based surveillance are two different types of public health surveillance that work well together.
To learn more about public health here
brainly.com/question/29843746
#SPJ4
what is the main purpose of epidemiologic surveillance?
The major motivation behind epidemiological observation is to observe the wellbeing of different groups.
This involves the organized collecting, investigation, and analysis of health-related information to uncover patterns or changes in the health of populations. This data can then be utilized to shape public health policy, recognize and investigate health risks, and assess the adequacy of programs and interventions.
With the emergence of global health issues, epidemiological surveillance is becoming increasingly significant for efficient public health management. It is employed to observe the dispersal of infectious diseases, discover and look into disease outbreaks, and assess the weight of ongoing diseases.
Additionally, it can be used to provide guidance for health promotion efforts, such as immunization drives, and to supervise the safety and effectiveness of new treatments and interventions.
To learn more about health visit:
https://brainly.com/question/14311847
#SPJ4
this is the branch of science that studies health and disease trends and patterns in populations.
Epidemiology can be defined as the branch of science which basically studies the health as well as disease trends and patterns that exist in a population.
Epidemiology is basically study as well as the analysis of the distribution patterns and also the determinants of the health as well as the disease conditions which occur in a defined population.
It is basically the cornerstone of public health, and helps in shaping policy decisions and also the evidence-based practice by the identification of risk factors for diseases and also the targets for preventive healthcare. Epidemiologists are involved in study design, collection, and also the statistical analysis of the data obtained, amend interpretation as well as the dissemination of results.
To know more about epidemiology here
https://brainly.com/question/12475188
#SPJ4
the amount of testosterone and sperm produced by the testes is dependent on the influence of fsh alone. True/False ?
amount of testosterone and sperm produced by the testes is dependent on the influence of fsh alone is false.
A complicated interplay between multiple hormones, notably follicle-stimulating hormone (FSH) and luteinizing hormone, controls the synthesis of testosterone and sperm by the testes (LH).
The anterior pituitary gland produces the hormones FSH and LH, which control how well the testes work. FSH aids in controlling sperm production by promoting the growth and maturation of the germinal cells within the seminiferous tubules. The Leydig cells in the testes are stimulated by LH to produce testosterone.
In turn, testosterone suppresses the release of LH and FSH by acting as a feedback mechanism on the brain and pituitary gland. This aids in controlling the synthesis of sperm and testosterone inside the testes.
To know more about testosterone, click here,
brainly.com/question/29183923
#SPJ4
name the hormone secreted by the anterior pituitary gland that regulates secretion from the highlighted gland.
ADH, also known as corticotropin, is a hormone that stimulates the production of cortisol and other hormones by your adrenal glands, which are located above your kidneys.
Four hormones that the anterior pituitary gland secretes regulate the actions of other endocrine glands. These hormones include follicle-stimulating hormone (FSH), thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), by your adrenal glands, which are located above your kidneys and luteinizing hormones (LH).
The hypothalamus's synthesis of hormones regulates the anterior pituitary's ability to secrete hormones. Despite the fact that hormones come in a variety of forms, there are primarily two types: hormones instructing the pituitary to start producing a certain hormone (a releasing hormone).
Learn more about pituitary gland Visit: brainly.com/question/17052026
#SPJ4
choose all the following that describe gene flow. group of answer choices evolution of allele frequencies by assortative mating. evolution of allele frequencies by overproduction of offspring. evolution of allele frequencies by chance evolution of allele frequencies by interbreeding between populations evolution of allele frequencies by differential survival and reproduction.
evolution of allele frequencies by interbreeding between populations, and the evolution of allele frequencies by differential survival and reproduction.
What is the meaning of evolution?
The term "evolution" describes the process through which various types of animals grow and alter over the course of generations via mechanisms such as natural selection and genetic diversity. New species that are more adapted to their surroundings and more likely to survive and reproduce are created as a result of this process. The idea of evolution is important to biology and offers a rationale for the variety of life on Earth.
Evolution is the shift in a biological population's heritable traits over successive generations. These traits are the expressions of genes, which are passed down through reproduction from parent to offspring.
forces: natural selection of organisms combined with haphazard mutations in the genomes of living things.
Divergent, convergent, and parallel evolution are the three main kinds of evolution.
To know more about evolution, check out:
https://brainly.com/question/4822518
#SPJ4
which scenario is most relevant to the field of cognitive neuroscience?
On the basis of cognitive neuroscience and brain activation patterns, a researcher can determine that Julie is looking at a telephone. Out of the options provided, this is the one that should be chosen.
What kind of cognitive neuroscience examples are there?Dopamine neurons become more active when we make a choice that brings about a reward; eventually, this reaction occurs even in the absence of a reward. Functional neuroimaging, electrophysiology, cognitive genomics, and behavioral genetics are some of the techniques used in cognitive neuroscience. They also incorporate experimental techniques from psychophysics and cognitive psychology.
What is cognitive neuroscience's significance?The nature of scientific knowledge is better understood thanks to cognitive neuroscience. The study of cognition in neuroscience aids in the resolution of issues in modern scientific philosophy.
To learn more about cognitive neuroscience visit:
brainly.com/question/26741419
#SPJ4
The given question is incomplete. The complete question is:
Which scenario is MOST relevant to the field of cognitive neuroscience?
Jasmine thinks about eating a cookie and her stomach starts to feel full.
A researcher can tell that Julie is looking at a telephone based on cortical activation patterns.
A person in a coma is able to communicate pain through eye blinking.
Doctors can detect a newborn's pain response through use of a heart monitor.
What is a term used to describe a pair of homologous chromosomes?
The answer is A. Homologous Chromosomes is the term used to describe pairs of chromosomes that have the same DNA segments that code for the same traits.
A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and centromere location.
A homologous pair consists of one paternal and one maternal chromosome. In humans, there are a total of 46 chromosomes in the nucleus of a somatic cell. Half of them (22 autosomes + X or Y chromosome) are inherited from the father and the other half (22 autosomes + X chromosome), from the mother. Each maternal chromosome has a corresponding paternal chromosome; they pair up during meiosis.
Learn more about Homologous Chromosomes
https://brainly.com/question/29312190
#SPJ4
Full Question ;
What term is used to describe pairs of chromosomes having DNA segments, or genes, for the same trait?
a. homologous
b. analogous
c. homozygous
d. parallel
Chromatin, which consists of DNA and associated proteins, undergoes coiling and condenses during cell division to form __________
Answer:
Chromosomes
Explanation:
Chromatin is like a thread and there a proteins in it (called Histones) that are like circular beads. Chromatin takes up so much space because imagine Yarn all over the place.
But the cell needs to compact that 'Yarn' during cell division to make it easier to move the information.
So the thread wraps around the protein beads to to chromosomes. They are way more compact and favorable during division.
What characteristics of chlamydomonas are typical of protists in general?
The characteristics of Chlamydomonas that are typical of protists, in general, are unicellular, eukaryotic, and share certain characteristics with animals or plants, and fungi.
Is Chlamydomonas protist?Protist is a group of eukaryotic that share certain characteristic with animals or plants or both. The term of protist refers to a eukaryotic organism that is not a true animal, fungi, or plant. Algae is included in a protist.
Chlamydomonas is unicellular green algae and eukaryotic. Even though it is one cell, it has a nucleus. The cell contains chloroplast which is similar to the plant. We can say that Chlamydomonas is a photosynthetic organism. Then, Chlamydomonas is motile and has flagella for moving.
From this characteristic, although Chlamydomonas is unicellular, it has common features with plants and animals. Thus, Chlamydomonas belongs to protists.
Learn more about protists by clicking this link :
https://brainly.com/question/23108617
#SPJ4
_______. Joins Okazaki fragments to form a continuous strand
Once the fragments are formed, DNA ligase joins them together to form a single, continuous strand.
After replication, the Okazaki fragments must be joined together to form a single continuous strand. This is achieved by the enzyme DNA ligase, which closes the Okazaki fragments' sugar phosphate backbone. This enables the replication of two identical daughter strands of DNA.
As the helix unwinds, DNA synthesis on the lagging strand restarts multiple times, resulting in many small pieces known as "Okazaki fragments." The Okazaki fragments are joined together into a single DNA molecule by DNA ligase.
The activity of DNA ligase joins these little chunks of newly produced DNA (dubbed Okazaki fragments after their discoverer) to generate an entire new DNA strand.
Learn more about Okazaki fragments
https://brainly.com/question/29428237
#SPJ4
according to the phet gene expression simulation linked out in the pca, what two proteins are needed to produce an mrna for gene 1?
a. mRNA destroyer
b. positive transcription factor
c. ribosome
d. RNA polymerase
The two proteins needed to produce an mRNA for gene 1, according to the PHET Gene Expression simulation, are RNA polymerase and a positive transcription factor. Option B and C are correct.
RNA polymerase is an enzyme that is responsible for synthesizing RNA molecules, including messenger RNA (mRNA), from DNA templates. In the simulation, RNA polymerase is responsible for transcribing gene 1 into an mRNA molecule.
A positive transcription factor is a protein that helps activate gene expression by binding to specific DNA sequences and promoting the binding of RNA polymerase to the gene. In the simulation, the positive transcription factor is necessary for RNA polymerase to bind to gene 1 and begin transcription.
Note that the specific proteins involved in gene expression can vary depending on the organism and the type of gene being expressed. The information provided in the simulation is specific to the PHET simulation and may not reflect the proteins involved in gene expression in other systems.
To know more about RNA polymerase here
https://brainly.com/question/29664942
#SPJ4
which of the following do you expect if an individual is heterozygous for the sickle-cell trait? view available hint(s)for part a which of the following do you expect if an individual is heterozygous for the sickle-cell trait? he or she will be more apt to acquire a serious case of malaria. he or she will show some symptoms of the disease. he or she will have full-blown sickle-cell disease because the allele is dominant. he or she will not develop sickle-cell disease. none of the above.
A heterozygote will produce both normal and abnormal hemoglobin if an individual is heterozygous for the sickle-cell trait. In this case option D is correct.
One of the inherited diseases known as sickle cell disease is sickle cell anemia. Red blood cells, which deliver oxygen to every part of the body, are affected in terms of shape.
Typically rounded and flexible, red blood cells can flow through blood vessels with ease. Additionally, these sickle cells develop a rigid and sticky coating that can hinder or slow blood flow.
Most people with sickle cell anemia are incurable.
Treatment modalities can relieve pain and help save us from complications associated with the disease.
To learn more about sickle cell here
https://brainly.com/question/21354134
#SPJ4
analysis of a glandular secretion indicates that it contains dna, rna, organelles and membrane components such as phospholipids. what kind of secretion is this?
The right response is This form of secretion is holocrine. DNA, RNA, and membrane components are indicators indicating the cell was killed off during secretion. This is in line with a holocrine secretion type.
Holocrine secretion is a particular type of secretion that occurs in the multicellular exocrine glands of mammals, birds, and reptiles. It involves the release of the complete cytoplasm along with the remains of dead cells.
Here, we discovered that the sebaceous glands of mice, which are an example of multicellular exocrine glands in mammals, display a type of polarized stratified epithelium with tight junctions (TJs), and that holocrine secretion took place outside the TJ barriers.
To know more about holocrine click here:
brainly.com/question/11098658
#SPJ4
if there is a large biomass of consumers found in a rain forest, which pyramid would best demonstrate the primary productivity?
Pyramid of biomass is the best one to describe the large biomass of consumers found in a forest.
How can this pyramid define the large biomass of consumers?Ecological pyramid is basically a graphical presentation. This is mainly to describe the relation between living organisms at different trophic levels. In the base of the pyramid there is producers. After this level there is the level of consumers. In pyramid of biomass every level calculates the amount of biomass which is produced by each trophic level. In case of oceans the pyramid of biomass is inverted. But otherwise this pyramid is generally upright.
So, pyramid of biomass can describe this case beautifully.
To know more about ecological pyramid, check out:
https://brainly.com/question/19345731
#SPJ4
site of collecting ducts and loop of henle function is?
Site of collecting ducts and loop of henle function in forming the distal tubule.
Henle's loop dips into the deeper medulla tissues from the renal cortex while circling back up to the cortex. The distal tubule is formed at this point, where the tubule convolves once more. In the end, the distal tubule dips backwards into the medulla and joins a collecting tubule there.
Utilizing the concept of "countercurrent multiplication," the loops of Henle and the thick ascending limb of the distal tubule's main job is to concentrate urine. A gradient of urea and salt exists in the medulla, with proportions of these solutes rising as one gets closer to the papillae.
To learn more about Henle here
brainly.com/question/13148548
#SPJ4
what combinations of chromosomes are possible in haploid cells following both divisions of meiosis? select all that apply. what combinations of chromosomes are possible in haploid cells following both divisions of meiosis?select all that apply. c1 , m1 , s2 c1 , m1 , s1 c2 , m2 , s2 c2 , m2 , s1 c2 , m1 , s2 c1 , m2 , s2 c2 , m1 , s1 c1 , m2 , s1
A) Mitosis is a cell division that results in a two identical daughter cells. That means that daughter cell will have the same genetic information as their mother cell. Thus, they will have the same combination of chromosomes as the mother cell - C1 and C2, M1 and M2, and S1 and S2.
B) Meiosis is a cell division that results in a reduction of a number of chromosomes by half. So, if the mother cell is diploid, daughter cells will be haploid. After meiosis I, the number of chromosomes is reduced. So, in our example there are 3 pairs of homologous chromosomes. Homologous chromosomes will split up after meiotic metaphase I. There are 8 different combinations of chromosomes:
C1-M1-S1, C1-M1-S2, C1-M2-S1, C1-M2-S2, C2-M1-S1, C2-M1-S2, C2-M2-S1, C2-M2-S2
C) After both meiotic divisions, there will be 4 daughter cells that are haploid. After meiosis I, we have 8 different combinations of chromosomes that can be in two daughter cells. These two cells will enter meiosis II which is the same as mitotic division. So, each of these two cells will have identical two daughter cells. Thus, it will be the same combination of chromosomes as is present in the cells after the first meiotic division.
Learn more about chromosomes
https://brainly.com/question/30077641
#SPJ4
Full Question ;
A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S2. No crossing over occurs.
a. What combinations of chromosomes are possible in daughter cells following mitosis?
b. What combinations of chromosomes are possible in cells undergoing the first meiotic metaphase?
c. What combinations of chromosomes are possible in haploid cells following both divisions of meiosis?
Select all the statements that correctly describe the cooperative binding of oxygen to hemoglobin. a. Hemoglobin consists of four heme-bound subunits. b. Hemoglobin acts as an oxygen store under anaerobic conditionsc. The hemoglobin-oxygen binding curve is sigmoidal. d. Hemoglobin always binds oxygen tightly e. Salt bridges between hemoglogbin subunits allow oxygen to bind tightly
Hemoglobin consists of four heme-bound subunits and hemoglobin-oxygen binding curve is sigmoidal, describe the cooperative binding of oxygen to hemoglobin.
Hemoglobin (also known as hemoglobin or Hb) is a protein found in red blood cells that stores and transports oxygen. It may be present in many multicellular creatures, including mammals, when simple diffusion would be insufficient to give necessary oxygen to tissue and cells.
Hemoglobin is made up of four polypeptide subunits: two alpha () and two beta (). Each of the four subunits includes a heme (iron) molecule in which the oxygen is attached in a reversible process, allowing a hemoglobin molecule to carry four oxygen molecules at the same time.
The reversible nature of oxygen binding allows for both oxygen intake in the lungs and release in bodily tissues. The heme molecules, which each have a single core iron atom, are responsible for the red color of hemoglobin and consequently of blood as a whole.
The oxygen-binding curve for hemoglobin in red blood cells is a "S" shape known as a sigmoidal curve. A sigmoidal curve demonstrates that oxygen binding is cooperative; that is, when one site binds oxygen, the likelihood that the other vacant sites will bind to oxygen increases.
The relevance of cooperative behavior is that it permits hemoglobin to carry oxygen more efficiently. Hemoglobin, for example, has a saturation level of 98% in the lungs. When hemoglobin is present in the tissues and releases oxygen, the saturation level lowers to 32%, implying that 66% of the possible oxygen-binding sites are participating in oxygen transport.
learn more about Hemoglobin at https://brainly.com/question/5385828
#SPJ4
an appendage which forms a channel for the exchange of genetic material during bacterial conjugation, Called ?
Pilus. DNA can be transferred between bacteria during the process of bacterial conjugation thanks to conjugative pili.
A bacterial cell's pilus (plural pili) is an extension that resembles hairs and is used for bacterial conjugation. A group of proteins known as pilin is present in pilus structures. Pili are immunogenic. They are also delicate and frequently replaced, sometimes with pili of different composition, which changes their antigenicity. On the new structure, specific host responses to old pili structures are ineffective. Variable (V) and constant (C) regions of the pili are encoded by recombination genes (similar to immunoglobulin diversity). Influences of virulence and impunity There has been a lot of interest in the study of pili as organelles of adhesion and as components of vaccines on the cell surface of a number of species of Gram negative and some Gram positive bacteria, including Enterobacteriaceae, Pseudomonadaceae, and Neisseriaceae.
Learn more about ‘ Pilus ‘ visit here;
https://brainly.com/question/12741786
#SPJ4
peptides and catecholamines are hydrophilic and cannot penetrate a target cell. they therefore bind to receptors where?
Catecholamines and peptides are hydrophilic substances that cannot enter a target cell. As a result, they bind to cell surface receptors.
How do hormones that are hydrophobic move about the body?Since the steroid hormones are fat soluble and hydrophobic, transport proteins must bind to and move them (like albumin and globulins which are blood proteins produced by the liver). Hormones that are free (unbound) can go inside target organs.
Where are the majority of the water-soluble hormone receptors found?On the cell surface are water-soluble hormone receptors. The majority of lipid-soluble hormone receptors are found inside the cell. A cell's receptors can be up- or down-regulated to affect how responsive that cell is to hormones.
To learn more about receptors visit:
brainly.com/question/11985070
#SPJ4