Peptidoglycan is a compound in which polysaccharides are linked to peptide fragments that provide the main sources of structural support to the bacterial cell wall.
Peptidoglycan is a stiff coat that surrounds the cytoplasmic membrane of most bacteria. It protects bacterial cells from environmental stress and maintains cell shape throughout their life cycle. Hence, it provides the main source of structural support to the bacterial cell wall.
By encasing the cytoplasmic membrane of most bacteria, peptidoglycan is responsible for osmotic stability. It is a one-of-a-kind, net-like polymer composed of glycan strands that are connected together by peculiar peptides. The structure of bacterial peptidoglycan varies greatly due to changes in amino acid sequence, cross-link types, and the presence or absence of secondary modifications in both the glycan strands and peptides.
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_____________________ is an individual's genetic heritage; his or her actual genetic material
Genotype is an individual's genetic heritage; his or her actual genetic material.
An organism's genotype is made up of all of its genetic material. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype. A blood genotype reveals the complete genetic composition of a person's blood. There are typically five (5) distinct blood genotype types. AA, AS, AC, SS, and SC are their names.
The cells' genetic makeup is deoxyribonucleic acid or DNA. It determines your traits and was given to you by your parents. Another significant turning point in molecular biology was the realization that DNA is the genetic material. Your eligibility for clinical trials, the medications to avoid due to inhibitor development, or your carrier status may all depend on your genotype or genetic mutation.
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Some scientists are studying a newly discovered microbe and determine that it consists of a single cell, lacking a nucleus. this organism could be:_____
Some scientists are studying a newly discovered microbe and determine that it consists of a single cell, lacking a nucleus. this organism could be a bacterium.
What do you mean by bacterium?Any of a large group of one-celled organisms that reproduce by fission or by generating spores, lack a cell nucleus, and occasionally cause disease. They are the most prevalent life forms on Earth, present in all living organisms as well as all climatic conditions.What can be discovered in bacteria?Its gel-like matrix, which also contains other cell components like ribosomes, chromosomes, and plasmids, is made up of water, enzymes, nutrients, waste products, and gases.The cytoplasm and all of its elements are enclosed by the cell membrane. Bacteria do not have a nucleus that is contained in a membrane like eukaryotic (true) cells do.To learn more about bacteria visit:
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Reactants in a chemical reaction are the molecules that are assembled together or broken down to form products. the reactants in photosynthesis are?
The ph optimum for enzymes secreted by the stomach is higher than the ph optimum for enzymes secreted by the pancreas. true false
The ph optimum for enzymes secreted by the stomach is higher than the ph optimum for enzymes secreted by the pancreas. False
Any enzyme have a optimal ph condition in which it is most active.
The enzymes that are secreted by the stomach like the pepsin are activated and work in acidic condition from about 1.5 to 3.5 ph level.
While the enzymes of pancreas like trypsin work optimally in the basic condition of the small intestine from about 6 to 7.4.
Hence the ph of the pancreatic enzymes require a higher ph as compared to the ph value of the stomach bacteria. So the statement given above is not true.
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A large molecule that consists of many identical or similar subunits, such as protein, dna, or starch is a(n)?
Two or more atoms make up a(n) ____________ and are exemplified by groups of macromolecules known as carbohydrates, proteins, lipids, and nucleic acids..
The correct answer for this question is Molecule.
Proteins, carbohydrates, nucleic acids, and lipids are the four primary types of biological macromolecules, which are huge molecules required for life that are composed of smaller organic molecules. Macromolecules are made up of monomers, which are single units bonded together by covalent bonds to create bigger polymers.
A macromolecule, such as a protein or nucleic acid, is a very big molecule crucial to biophysical processes. It is made up of many atoms that are covalently bound. The smaller molecules known as monomers are the building blocks of many macromolecules. Large non-polymeric molecules like lipids, nanogels, and macrocycles, as well as biopolymers (proteins, carbohydrates, and nucleic acids), are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, macromolecules can also be found in research materials like carbon nanotubes.
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Air passages such as your trachea (windpipe), which may contain air your body can't use, are known as?
The term "dead air spaces" refers to air passages like your trachea (windpipe) that may contain air your body can't use.
What does trachea mean?Your larynx, or voice box, and your lungs are connected by a long, U-shaped tube called your trachea. The windpipe is another name for the trachea. It is an essential component of your respiratory system. Air enters your lungs through your larynx when you breathe in.
What are the trachea's four purposes?Tracheal ActivityThe airway from the mouth or nose to the lungs should be made strong and secure.Prevent foreign things from entering the respiratory system.control the air entering the lungs' temperature and humidity levels.To know more about Trachea visit:
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What will happen with regard to eutrophication in an area that has a large impermeable surface?
The correct answer is eutrophication.
Eutrophication is an improvement of the water caused by nutritional salts that causes some restructuring of the ecosystem, including increased growth of algae, fish species extinction, general worsening of water quality, and other negative impacts that discourage and limit the use of water.
The majority of water bodies are susceptible to the gradual and natural eutrophication process, but owing to human activity, it is happening more quickly presently. We refer to this as cultural eutrophication.
Unwanted effects and environmental inequities are created when this eutrophication process is very vigorous.
noxious smells caused by decaying organic materials that are resistant to chlorination in drinking water.Reduction in fish quality generating loss on fishing.potential harm to the water supply.Bathing in lakes where particular algae are present can be risky and cause skin discomfort.reduction in oxygen content, especially near the lake's bottom throughout the summer and the tail end of the fall season.To learn more about Eutrophication refer the link:
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What characteristics make a particular molecule organic? select the two answers that are correct.
Organic molecules are more complex than inorganic molecules. They generally have carbon hydrogen and carbon oxygen bonds.
What are organic molecules?Organic molecules generally have carbon, oxygen and hydrogen bonds. Organic chemistry is a branch of chemistry that deals with organic chemistry.
Organic molecules are compounds with complicated structures. Carbohydrates, lipids and proteins are some kind of organic molecules. Organic molecules are generally larger than inorganic molecules.
Carbon chain in organic molecules can be straight, branched or ring shaped. This compounds have some functional groups such as hydroxyl, methyl and carbonyl.
Therefore, Organic molecules are more complex than inorganic molecules. They generally have carbon hydrogen and carbon oxygen bonds.
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The cells in this part of a plant form long, vertical tubes. What is the most
likely relationship between the structure and function of these specialized
cells?
The correct answer is the tubes allow water and nutrients to be transported throughout the plant.
Transport of water, nutrients, and photosynthates is made easier by the structure of a plant's roots, stems, and leaves. The primary tissues causing this movement are the phloem and xylem. How water and nutrients are carried in plants is influenced by water potential, evapotranspiration, and stomatal control. We must first comprehend the energetics of water potential in order to comprehend how these processes function.
An ordered function is carried out by a group of cells with a similar shape in plant tissues. The dermal, vascular, and ground tissues are the three primary tissue types that make up plant tissues.
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Lysozyme is an enzyme that specifically recognizes bacterial polysaccharides, which renders it an effective antibacterial agent. into what classification of enzymes does lysozyme fall?
Lysozyme fall under Hydrolases in the classification of enzymes.
Lysozyme is an alkaline enzyme that belongs to the glycoside hydrolases class of enzymes. It inactivates bacteria by hydrolysing glycosidic linkages de the peptidoglycan layer of the bacterial cell wall (made of peptidoglycan). The scientific term for glycoside hydrolases is peptidoglycan N-acetylmuramoylhydrolase. FAO/WHO defines them as a polypeptide derived from hen's egg whites with 129 amino acids, a molar mass of about 14000gmol-1 and an isoelectric point of 10.7, and enzymatic activity to hydrolyse the β(1-4) linkages between N-acetylmuramic acid and N-acetylglucosamine in the outer membranes of bacterial species, particularly Gram-positive organisms, usually obtained in the hydrochloride form for food use.
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What is the formula for anaerobic respiration?
Answer:
Anaerobic respiration takes place in the cell cytoplasm and produces lactic acid. The chemical equation is C6H12O6 -> 2C3H6O3 (Glucose -> Lactic acid). The lactic acid then needs to be oxidised later to carbon dioxide and water afterwards to prevent it building up
Select the correct answer from each drop-down menu.
Use the following image to complete the sentences below.
An anatomy drawing of a cell shows different parts labeled as W, X, Y, and Z with the arrows.
The structure labeled as X is the
, so the cell in the image is a
. The structure labeled as W is the
, so the cell in the image is a
.
The structure labelled as X is the Nucleolus, so the cell in the image is a Eukaryotic cell. The structure labelled as W is the Chloroplast, so the cell in the image is a Plant cell.
What is a Plant Cell?Plant cells are the eukaryotic cells present in plants. Eukaryotic cells have a well-defined nucleus and other membrane-bound organelles.
Chloroplasts are the double-membranous organelles present in plant cells. These are absent in animal cells. They contain green-pigment called chlorophyll. These are responsible for photosynthesis.
Therefore, the image given is of a plant cell.
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Based on what you have learned from your rankings in parts a and b, why is it generally hotter in summer than in winter?.
We feel hotter in summer than in winter because the temperature is generally higher than in winter.
What are seasons?There are three seasons on earth namely winter, summer, and rainy season. In the winter season, the temperature is cold and during summer the temperature is higher.
Timing and characteristic of season depend upon the location of the earth. The time of a year region experience season depends on it is northern hemisphere or southern hemisphere.
The southern hemispheres experiences winter while northern hemisphere experiences summer. The cycle of seasons is caused by earth's tilted towards the earth. The planet rotates around an axis.
Therefore, We feel hotter in summer than in winter because the temperature is generally higher than in winter.
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During the inflammatory process, cytokines and chemokines _______ act as superoxide radicals to elicit the inflammatory response
During the inflammatory process, cytokines and chemokines Activated act as superoxide radicals to elicit the inflammatory response. Cytokines and chemokines play critical roles in the immunological function of the brain, facilitating leukocyte movement and recruiting other inflammatory factors. When cytokine-producing cells are activated, they produce and secrete cytokines, which subsequently attach to cytokine receptors on other immune system cells.
Influencing their activity. A variety of cytokines stimulate the innate immune system, inflammatory, and the adaptive immune system. Chemokines are chemotactic cytokines that control the movement and placement of immune cells in tissues and are essential for the innate immune system to function.
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Coral bleaching results from a loss of the dinoflagellate endosymbiote. What is the metabolic result on the coral from coral bleaching?.
The metabolic result on the coral from coral bleaching is that The coral are not able to obtain energy from the products of photosynthesis.
Endosymbiosis, in which a microbial partner lives within the cells of a larger host organism.
Algae and coral both rely on one another to live. Corals and the zooxanthellae, tiny algae that dwell in their tissues, share a symbiotic relationship. The coral's main food supply and source of color are these algae. Coral that is under duress will lose its algae. Algae depart the coral tissue when the symbiotic relationship is strained by elevated ocean temperature or pollution. Coral that has been bleached is left exposed and vulnerable. The coral loses its primary food source without the algae, turns white or very pale, and becomes more prone to illness.
Ocean temperature variation Coral bleaching is most commonly caused by rising ocean temperatures brought on by climate change. Pollution and runoff Storm-generated precipitation has the potential to quickly dilute ocean water, and runoff can transport chemicals that can bleach corals close to the coast. excessive exposure to the sun High sun irradiation causes bleaching in shallow-water corals when temperatures are high.
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A fractured femur can result in the loss of ______ or more of blood into the soft tissues of the thigh.
A fractured femur can result in the loss of one litre or more of blood into the soft tissues of the thigh.
What is the femur?Your thigh bone is called the femur. It is your body's longest and strongest bone. It is essential to your capacity to stand and move. In addition, the femur supports numerous significant muscles, tendons, ligaments, and components of your circulatory system.
How long does it take to heal a broken femur?Most frequently, recovery takes 4 to 6 months. The severity of your fracture, whether you have skin wounds, and their severity will all affect how long it takes you to recover. The extent of your nerve and blood vessel damage, as well as the kind of your treatment, will also affect how well you recover.
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The human heart is an organ that is made up of cells. not all of the cells that make up the heart are identical, however. what name is given to a group of similar cells that perform a special function and together make up an organ? question 1 options: embryo system tissue organelle
The correct option is (c) Tissue
A collection of cells with similar structures and functions is referred to as a tissue.
What is Tissue?A collection of cells with similar structures and functions is referred to as a tissue. Histology is the study of tissue. The intercellular matrix, a nonliving substance, fills the spaces between the cells. There might be a lot of this in some tissues and not much in others. A particular tissue may have special components in its intercellular matrix, such as fibers and salts, that are specific to that tissue and give it specialized properties. The body is made up of four different types of tissue: epithelial, connective, muscular, and nervous. Each has a purpose for which it was created.Learn more about the Tissues with the help of the given link:
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What is the molecular weight of a protein in kilo dalton, that is made up of five amino acids?
The molecular weight of a protein in kilo dalton, that is made up of five amino acids is 5,000 grams per mole.
What is protein?
Protein is defined as the large macromolecules and biomolecules that are made up of long chains of amino acid. There is various function of protein such as DNA replication, speeding up chemical reaction, and helps to maintain the structure of cell.
A monomer is a type of molecule that can make chemical bond with any molecule and can form a long chain and polymer is a sequence of chain of an unspecified or unknown number of monomers.
RNA is ribonucleic acid and it is a nucleic acid which is found in almost all cells that are living and RNA is mostly similar to DNA but there is one difference between RNA and DNA and the difference is that RNA is single stranded but DNA is double stranded.
Therefore, The molecular weight of a protein in kilo dalton, that is made up of five amino acids is 5,000 grams per mole.
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Although penicillin inhibits peptidoglycan (cell wall) synthesis, bacterial cells will continue to grow normally in the presence of penicillin in a(n) __________ environment.
Bacterial cells will continue to develop properly in the presence of penicillin in an isotonic environment even if penicillin inhibits the production of peptidoglycan (the building block of the cell wall).
What does it mean to be a peptidoglycan?The term peptidoglycan, often known as "murein" or "mucopeptide," comes from the peptides and sugars (glycan) that make up a molecule. This intricately woven network of amino acids and sugar polymers encircles the entire bacterial cell. Human cells do not produce peptidoglycan.
Where does peptidoglycan reside?Cell wall of the bacteria
Almost all bacteria have peptidoglycan (murein), which is a crucial and distinctive part of the bacterial cell wall, on the outside of the cytoplasmic membrane.
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Enzymes function best at particular temperature and ph conditions. what is the most likely enzyme to be present in a bacterium found in a hot water vent in an acidic current?
The optimal pH and temperature for Enzyme B are 3 and 90 degrees Celsius, respectively.
What is bacteria?
Bacteria (plural bacterium, noun bacteria) are common, largely free-living organisms that frequently only have one biological cell. They make up a significant portion of the prokaryotic microbial kingdom. Soil, water, acidic hot springs, radioactive waste, and the deep biosphere of the Earth's crust are all home to bacteria. Through the recycling of nutrients, such as the fixation of nitrogen from the atmosphere, bacteria are essential at many phases of the nutrition cycle. The decomposition of dead corpses is a part of the nutrient cycle; bacteria are in charge of the putrefaction phase of this process. In the biological communities around hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to support life by converting dissolved chemicals, such as hydrogen sulphide and methane, to energy. Additionally, bacteria coexist with plants and animals in parasitic and symbiotic ways.
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how can inheriting new characteristics be helpful for an organism?
Answer:
It will essentially help the organism for when it evolves whether it inherits good or bad characteristics.
Explanation:
Because it will have to evolve, it will either die out or thrive through those new characteristics. Which is a part of life.
measuring human proportions on skeletal remains from ancient sites as well as among modern human populations is known as
Measuring human proportions on skeletal remains from ancient sites as well as among modern human populations is known as anthropometry. Anthropometric measurements are used in occupational injury prevention to examine the interaction of employees with jobs, tools, machines, vehicles, and personal protective equipment, particularly to estimate the degree of protection against risky exposures, whether chronic or acute.
Anthropometry is used to optimize goods in industrial design, garment design, ergonomics, and architecture, where statistical data about the distribution of body dimensions in the human population is used. Changes in population lifestyles, nutrition, and ethnic makeup result in changes in the distribution of body dimensions.
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When the drugs source of origin and chemical structure has been intentionally altered ti achieve a new beneficial property this drug is known as
When the drug's source of origin and chemical structure has been intentionally altered to realize a new beneficial property this drug is known as Synthetic Drug.
What are synthetic drugs?Drugs manufactured in a lab are known as synthetic drugs. Sometimes they'll be called designer drugs or club drugs. they have been made to mimic the effects of other drugs.
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When the drug's source of origin and chemical structure has been intentionally altered to realize a new beneficial property this drug is known as Synthetic Drug.
What are synthetic drugs?Drugs manufactured in a laboratory are known as synthetic drugs. Sometimes they'll be called designer drugs or club drugs.
A synthetic drug is a drug that contains with properties and effects similar to a known narcotic but having a slightly altered chemical structure, such a drug created in order to avoid restrictions against illegal substances.
What is an example of synthetic material?
Examples of Synthetic Materials include : synthetic fibers, ceramics, polymers, artificial foods and medicines, and composites. Synthetic fibers are flexible. They can be used in making clothing and other objects.
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Which method of degradation is appropriate for proteins located within the cytoplasm?
Proteasomal degradation is the method appropriate for the degradation of proteins in the cytoplasm.
Proteins are required by body enzymes for various functions. The unused proteins or damaged proteins are recognized and degraded in the cells themselves. The process of degrading proteins is generally known as proteasomal degradation. It involves two types of pathways- a ubiquitin-proteasome pathway and lysosomal proteolysis.
1. Ubiquitin proteasome pathways
This involve marking the proteins with ubiquitin. Ubiquitin is a polypeptide conserved in eukaryotes. Multiple units of ubiquitin are attached to the amino group of the side chain in a lysine protein residue. This multi ubiquitin chain is recognized and degraded by a protein complex called the proteasome.
2. Lysosomal proteolysis
It is a slower process of protein degradation. It involves taking up non-selective proteins by lysosomes. Lysosomal enzymes digest these proteins to degrade them.
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During ________, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
According to the research, the correct option is anaphase. During anaphase, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
What is anaphase?It is one of the stages of mitosis, which is a method of cell reproduction, where the separation of pairs of chromosomes that are homologous occurs.
In this sense, the sister chromatids (the units of the chromosome that have already been duplicated) separate from each other and are pulled towards the opposite poles of the cell, that is, they move towards the opposite sector of the cell through the achromatic spindle.
Therefore, we can conclude that according to the research, the correct option is anaphase. During anaphase, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
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please help me with this question please please
Animals, Plants, and Fungi are multicellular, meaning that they have more than one cell in their body. Each cell also has a nucleus in it, a property which the other two kingdoms, Bacteria and Eubacteria don't have.
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When using a gemscope to show details of cut, the best type of lighting to use is?
Answer:10x magnification
Explanation:
True or false: once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.
It is true that once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.
Absorptive cells are also known as enterocytes. These cells line the lumen of the small intestine and the colon. They are meant to absorb the nutrients from the digested food inside the lumen of intestine. Apart from absorption, they also transport the nutrients across the membrane.
Portal vein is the blood vessel that transports blood from the GI tract, pancreas, gall bladder and spleen into the liver. This blood vessels belongs to the portal venous system. Its location is the upper right quadrant of the abdomen.
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Sally notices that after it rains, water beads up on the surface of many leaves of the
plants in her garden. she believes this is due to surface tension. which properties are
actually responsible for this phenomenon?
cohesion and high density of ice
o polarity of water and adhesion
polarity of water and cohesion
cohesion and adhesion
The property of polarity of the water and cohesion could be the actual responsible for the beading up of water on the surface of leaves.
What is cohesion?
Cohesion, also known as cohesive attraction or cohesive force, is the action or quality of like molecules sticking together and being attracted to one another (from the Latin cohaesi, "cohesion, unity"). The uneven distribution of surrounding electrons that results when molecules are close to one another creates electrical attraction, which can keep a small structure like a water drop in place. This attribute of a substance is caused by the shape and structure of its molecules. Surface tension is made possible by cohesion, resulting in a "solid-like" state that allows for the placement of light or low-density materials.
It turns out that the tendency of water molecules to attract one another, or the tendency of cohesion, is what causes surface tension. The "lowest energy state," or the state in which the atoms in the molecule are utilizing the least amount of energy, is when a water drop takes on its natural form. This condition of water occurs when a water molecule forms a sphere or ball and is encircled by other water molecules on all sides. On Earth, gravity flattens this perfect sphere into the form of a drop that we can perceive.
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