Mildly putting pressure on the front of your neck will not affect your ability to swallow. this is because the esophagus is dysphagia to the trachea.
What ailments might impair one's capacity to swallow?a disorder that affects the neurological system, such as dementia, multiple sclerosis, head injuries, or stroke. malignancy, such as oesophageal or mouth cancer. Gastro-oesophageal reflux disease (GORD) is characterised by oesophageal reflux of stomach acid.
Cervicogenic dysphagia, a term used to describe swallowing issues, has been connected to cervical instability in the neck. The compression of the cervical spine nerve, which has been related to cervical instability, can be a "unseen" cause of acid reflux, esophageal spasms, and difficulty swallowing.
Multiple sclerosis, muscular dystrophy, Parkinson's disease, and myasthenia gravis are among neurological conditions that can impair swallowing.
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ASAP PLEASE HELP ASAP
1.Alex poured some pond water into three beakers. She then put waterweed into each
beaker. She put the beakers in different places.
i) In which beaker did the waterweed grow best? Give the correct letter.
________
ii) The waterweed in the box changed from dark green to pale yellow. Why did this happen?
2.In the school pond there were lots of water lilies with large leaves covering the surface. There were not many plants growing below the surface. Suggest a reason
for this.
3.In another experiment, Alex put similar pieces of waterweed into two more beakers of pond water. She added fertiliser to one of them. She kept them both by a window.
i) Alex added fertiliser to beaker E. Suggest the results of this experiment.
ii) What do fertilisers contain to help plants grow? Tick the correct box.
1. (i)The waterweed grew best in the beaker A which is placed in normal daylight.
1. (ii) The color of waterweed placed in the box changed from dark green to pale yellow as the entry of light was stopped which negatively affected the ability of the waterweed to photosynthesize.
2. The school pond having excess water lilies exhibited the growth of not many plants since the large leaves covering the pond surface prevented the penetration of light into the pond.
3. (i) The beaker E in which Alex added fertilizer showed better results in terms of plant growth as compared to the other without fertilizer.
3. (ii) √ Minerals
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_____ are receptor cells contained in the retina and are useful in color perception, particularly in bright-light conditions.
Cones are receptor cells contained in the retina and are useful in color perception, particularly in bright-light conditions.
Retina :The inside of the eye's back is lined by a thin layer of tissue called the retina. It stands close to the optic nerve. The retina's job is to collect light that has been focused by the lens, transform it into neural signals, and deliver those signals to the brain for visual identification.
What is the retina of the eye?Light that enters your eye is converted by the retina into electrical signals that your optic nerve sends to your brain, which produce the images you see. It's a crucial component of your vision. The retina is the layer that is located at the very back of your eye. The retina contains rods and cones, two different types of receptor cells. These cells pick up light energy and absorb it for the nervous system to use.
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Bacteria carry out bidirectional replication of their single chromosome by using _____ replisomes that each contain _____ dna polymerase enzymes.
Bacteria carry out bidirectional replication of their single chromosome by using 2 replisomes that each contains 2 DNA polymerase enzymes.
A replication method takes place between storage media such as virtual disks or hard disks.
This type of replication occurs in different sites where data can be transferred in both directions.
In bacteria, DNA replication takes place in circular DNA along individual chromosomes.
However, it is a reciprocal method where all ribosomal proteins gather at the replication forks to construct a replication complex which is called a replisome.
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PLEASE HELP ASAP!!!
Consider the scenario.
Monarch butterflies are a migratory insect that can travel each year from the northeastern United States and Canada down to central Mexico to hibernate over winter from November to March. Scientists studying monarch butterflies noticed the number of wintering monarchs in Mexico was at its lowest in decades. By reading climate reports, scientists learned that United States and Canada had been experiencing abnormal drought and rainfall patterns. The scientists also learned that the droughts killed off many plants, including milkweed needed as food for monarch caterpillars.
Question
Which part of the scientific method is best illustrated by the scientists wondering why there are fewer monarch butterflies arriving in central Mexico?
A. collecting data from an experiment
B. communicating the results of a study
C. making an observation and asking a question
D. forming a new hypothesis
The scientific method that is involved in the study of why there are fewer monarch butterflies arriving in central Mexico is making an observation and asking a question. Option C
What is the scientific method?The scientific method is based on the fact that science is all about inquiry and the quest to obtain new information. There are several steps in the scientific method which includes; Observation, hypothesis, experiment, inference and conclusion.
Now, we can see that studies revealed that fewer monarch butterflies are arriving in central Mexico. We now want to find out which scientific method could be responsible for this.
We can then see that, the part of the scientific method that involves this is making an observation and asking a question.
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The unusual organisms living in australia have evolved primarily because of?
Because the unique position of Australia on the face of the Earth.
Australia is the only country in the world that actually covers the entire continent. It is one of the largest countries on the Earth. Although it is rich in the natural resources and has a lot of the fertile land, more than one-third of the Australia is desert. Australia's landscape is also dominated by the Outback, a region where deserts and semi-arid land. The Outback is the result of the continent's large inland plains, its location along the dry Tropic of the Capricorn, and its proximity to the cool, dry, southerly winds
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Comparisons of amino acid sequences can shed light on the evolutionary divergence of related species. If you were comparing two living species, would you expect all proteins to show the same degree of divergence?.
When all else is equal, the length of time since two organisms shared an ancestor determines the degree of divergence. But not all other things are created equal.
How are relatedness in organisms and categorization determined using DNA and amino acid sequences?Proteins and nucleic acids (DNA and RNA) are "information molecules" because they store a history of an organism's evolution.The amino acid sequence of a protein is determined by its DNA sequence, therefore two organisms that share a gene ought to have similar or even identical amino acid sequences. That's because recently in evolutionary history, closely related species are likely to have diverged from one another. Evolutionary relationships that might otherwise go undiscovered might be discovered by comparing the amino acid sequences in homologous proteins of comparable and varied animals.Learn more about the Evolution with the help of the given link:
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Rosa receives a low grade on her biology midterm exam. if we know that rosa is low in self-esteem, we might expect her to:_____.
We might expect her to perform poorly on the next test
What is Self esteem ?How we see and regard ourselves is a measure of our self-esteem. It is founded on our perceptions of ourselves, which can be challenging to alter. This could also be referred to as confidence. Depending on your level of self-esteem, you might: Like and appreciate yourself as a person.
Learning to accept our flaws while yet choosing to enjoy ourselves helps us develop self-esteem. Every time a youngster engages in effective exchanges using encouraging words, their sense of self-worth increases. Building a child's self-confidence in their ability to manage their life is crucial.Learn more about Self esteem here:
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Nucleus, chromosome, nucleotide, genome, nucleosome, and base triplet from largest to smallest?
Nucleus > Genome > Chromosome > Gene > Base Triplets > Nucleotide.
Among the list, Nucleus is the largest segment, where as Nucleotide is the smallest segment which combines to form the base triplets, then a gene, then a chromosome, then a genome, and then the genome is present inside the nucleus.
Nucleus- A typically rounded region of most cells that is surrounded by two membranes, regulates the functions of the cell.
Genome- The total collection of DNA instructions present in a cell makes up the genome.
Chromosome- A component that can be found in a cell's nucleus. The proteins and DNA that make up a chromosome are arranged into genes.
Gene- The basic unit of heredity passed from parent to child.
Base Triplet- Any sequence of three bases in a nucleic acid that codes for an amino acid, or some other signal, in protein synthesis.
Nucleotide- A nucleotide is an organic molecule having the basic elements phosphate, pentose sugar, and nitrogenous base.
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The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called what?
The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called Refractory period.
Nerve cell is the functional unit of the nervous system. The action potential is transmitted through various phases.
Normally the nerve cell is in resting membrane potential of -70mV. During this phase all the gated channels are closed and only passive transport of ions take place.
As a action potential arrive all the voltage gated sodium open and influx of sodium occurs into the cells. It is called depolarization phase. It causes the membrane potential to pass to next part of the axon.
After that the potassium channels open and outflow of K+ ions occurs outside cell called repolarization.
The resting period after this is called refractory period.
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Adena boils tomato soup to kill all of the bacteria in it. She pours the hot soup into four groups of four small bowls just out of the dishwasher. The table shows what she does with each group of samples.
She is going to observe what grows on each sample. Which is the control sample in this experiment?
A. Group 3
B. Group 4
C. Group 1
D. Group 2
Question 4: Switch on your light source. Make sure it is shining onto a wall. Hold your largest clear plastic square between the light source and the wall. 4.1. 4.2. 4.3. What do you observe? Now do the same with the second clear plastic square. B What do you observe? Now do the same with the third clear plastic square. What do you observe? 4.4. What differences do you observe between the shadows of the three shapes?
Rays of light can travel through the cardboard when I hold my largest cardboard square between the light source and the wall, but because the cardboard is not very thick, the light can still pass through and create a shadow.
2b. The shadow is typically shorter.
2c. Completely no shadow 2d. The shadow is either clear or hardly there.
Do cardboard sheets block light?
Based on the precise materials and light sources that were employed, the results of the cardboard experiment frequently differ.
Keep in mind that it is generally expected that reflective materials, such as aluminum foil, and mirrors, would reflect the specified or given light.
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Answer:need answers
Explanation:for project
The invaginations of the mitochondria, which increase the surface area of the inner membrane, are called.
Adenosine regulates synaptic activity through its actions on:___.
Adenosine regulates synaptic activity through its actions on presynaptic autoreceptors. Adenosine A1 receptors are expressed at a presynaptic locus withinside the BLA and that activation those receptors substantially inhibits glutamate launch possibility onto BLA pyramidal neurons.
The adenosine A2A receptor is a G-protein-coupled receptor that may be a most important goal of caffeine and vital for regulating myocardial oxygen consumption, coronary blood flow, and CNS neurotransmitters, hence a receptor of hobby for brand new drug development.
The adenosine A2A receptor is particularly gift with inside the brain, heart, lungs, and spleen. The adenosine A2B receptor has its most important distribution with inside the big gut and bladder, and the adenosine A3 receptor is gift inside the lungs, liver, brain, testis, and heart.
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The urinary bladder, urethra, and ureters are collectively known as the urinary ___________.
The urinary bladder, urethra, and ureters are collectively known as the urinary tract
The urinary tract is the body's drainage the system for the removing of urine, which is made up of the wastes and the extra fluid. For the normal urination to be occur, all body parts in the urinary tract also need to work together, and in the correct order. The urinary tract that includes two kidneys, two ureters, bladder, and a urethra.
infections also occur in Urinary tract which are caused by the microorganisms — usually the bacteria — that enter the urethra and in the bladder, that causing the inflammation and the infection. Though a UTI most of commonly happens in the urethra and in the bladder, bacteria can also be travel up the ureters and that infect your kidneys also,
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Which amino acid generates the following product in a transamination reaction with -ketoglutarate?
In a transamination process with alpha-ketoglutarate, the amino acid leucine produces the following product.
With an example, define transamination reaction.The most typical reaction type that is catalysed by PLP-dependent enzymes is transamination. Living cells reversibly convert the amino group from an amine (like -aminobutyrate) or alpha-amino acid (like aspartate) to a alpha-keto carboxylic acid (like alpha-ketoglutarate).This is a crucial biological activity.Where do reactions of transamination take place?A number of tissues, including the kidney, small intestine, muscles, and adipose tissue, participate in the metabolism of amino acids, although the liver is the primary location.
What resulted from the transamination reaction?The availability of -keto acids affects the outcome of transamination processes. The end products are often either alanine, aspartate, or glutamate since the metabolism of fuels produces the matching alpha-keto acids.learn more about transamination process here
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The term used to denote foods that contribute energy but lack protein, vitamins, and minerals is ________.
The term used to denote foods that contribute energy but lack protein, vitamins, and minerals is empty calorie foods.
What does it mean when foods are labeled empty calories ?There are a lot of packaged goods in the grocery store that are high in empty calories. This indicates that they are not very nutritious. Instead, they primarily provide your body with additional carbohydrates and solid fats, which can result in weight gain and nutrient inadequacies.
Example of an empty calorie foodEmpty calories are those that are produced by processed oils, added sugars, and solid fats. Carbohydrate-based treats like cakes, cookies, muffins, donuts, granola bars, and more are among them. sweet beverages, such as fruit juice, soda, and energy drinks.
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The best description of the bonds that form polypeptides and the difference between polypeptides and proteins is.
The correct option is A i.e that carboxyl and amino groups join by a covalent bond and that a functioning protein can consist of several polypeptides.
What is polypeptides ?
A polypeptide is a peptide chain that is longer, continuous, and unbranched. Therefore, along with nucleic acids, oligosaccharides, polysaccharides, and others, peptides belong to the large chemical families of biological polymers and oligomers.
A protein is a polypeptide that has more than 50 amino acids, on average. A protein is made up of one or more polypeptides that are structured in a biologically useful manner. Proteins are frequently coupled to other proteins, other macromolecules like DNA or RNA, or complex macromolecular assemblies.
A polypeptide is a chain of many amino acids, whereas a peptide is two or more amino acids bound together by peptide bonds. One or more polypeptides can be found in proteins. Proteins are therefore extensive strands of amino acids joined together by peptide bonds.
Question:
The best description of the bonds that form polypeptides and the difference between polypeptides and proteins is
A) that carboxyl and amino groups join by a covalent bond and that a functioning protein can consist of several polypeptides.
B) the functional group of one amino acid joins with the carboxyl end of another via covalent bonds; proteins and polypeptides are the same things.
C) amino acids are joined via their hydroxyl groups with covalent bonds and many proteins make up a polypeptide.
D) polypeptides form via hydrolysis, forming hydrogen bonds between amino acids; proteins have a functional group whereas polypeptides do not.
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The phosphotransferase system is classified as a form of active transport because:________
The phosphotransferase system is classified as a form of active transport Because ATP is hydrolyzed and changes the solute's structure as it enters the cell, the phosphotransferase system is categorized as an example of active transport.
What is ATP?
Adenosine 5′-triphosphate, generally known as ATP and typically written without the 5′-, is an essential "energy molecule" found in all living organisms. In particular, it is a coenzyme that transfers energy to cells by releasing its phosphate groups when it interacts with enzymes like ATP triphosphatase. The molecule is composed of an adenine bicyclic system, a furanose ring, and a triphosphate chain.
In 1929, two research teams claimed the discovery of ATP. At Harvard Medical School, Cyrus H. Fiske and Yellapragada Subbarow isolated it from mammalian muscle and liver (Boston).
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The process of turning on the expression of genes in response to a substance in the environment is called:________
The process of turning on the expression of genes in response to a substance in the environment is called epigenetic change.
Expression of gene is the turning on of the gene. This means that the gene is transcribed to synthesize the m-RNA and then the m-RNA is translated to from the proteins. Proteins are the actual structures that carry the information from the DNA and execute in the body.
Epigenetic changes are those that happen on the structure of DNA and regulate the expression of the genes. This can be the enhancement of gene expression or the repression. These changes are not heritable and are also temporary.
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The submucosa houses numerous ______ glands that provide a thick, lubricating mucus for the epithelium. multiple choice question.
The submucosa houses numerous mucous glands that provide thick, lubricating mucus for the epithelium.
What is a mucous gland?
Mucous gland, also known as muciparous glands, are found in several different parts of the body, and they typically stain lighter than serous glands during standard histological preparation.
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The probability that a person with a positive screening test actually has the disease screened for is called:________
The probability that a person with a positive screening test actually has the disease screened for is called: Positive predictive value.
A screening test is a medical test or treatment carried out on members (subjects) of a designated asymptomatic population or population subgroup to determine the likelihood that their members will have a specific condition. It is also referred to as medical surveillance.
When a person does not exhibit any symptoms of a condition, a screening test is performed to look for probable health issues or diseases. The objective is early identification, lifestyle modifications, or surveillance to lower the risk of disease or to identify it early enough to receive the best possible care. Screening tests are used to identify a subset of the population who should undergo additional testing to ascertain the existence or absence of disease, even if they are not thought of as diagnostic.
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A friend tells you that the theory of evolution is just an educated guess by biologists about how things work. evaluate this statement.
A friend tells you that the theory of evolution is just an educated guess by biologists about how things work- In science the theory are not just an educated guess but are backed experimental data and evidence.
Theory of evolution is based on the idea on slow and gradual changes on the species that occur over time.
It is based on three main components- First the variation occurs randomly among the species, the trait of an individual can be inherited by its progeny, and in the struggle for existence there is survival of the fittest i.e. the one with the favorable traits will survive.
The different types of remains supporting the theory are fossil remain of ancient organisms, fossil layer, similarities among the organisms including the genetic material and embryos.
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Located on the basilar membrane are(is) the ________, containing hair cell sensory receptors for the sense of hearing.
Located on the basilar membrane are(is) the organ of Corti containing hair cell sensory receptors for the sense of hearing.
The organ of Corti is also called basilar papilla which is a complex form of neuroepithelium composed of hair cells sensory receptors and supporting cells. In addition to these sensory and supporting cells, the organ of Corti also consists of a tectorial membrane. Endolymph which is a potassium-rich fluid surrounds the organ of Corti. The organs known as scala tympani and scala vestibule are present under and above the basilar papilla respectively.
The function of the organ of Corti is to generate electrical signals based on the sounds and transmit these signals to the brainstem through the passage of auditory nerves.
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The primary sequence of a protein contains proline. What can you predict about its folded structure at that region?.
Answer:
The folded structure at that region of the primary sequence of a protein that contains proline will have an alpha helix at that .
Explanation:
Amino acids that feature a side chain with a cyclic ring system are known as aromatic amino acids.
Histidine, as well as proline,as well as proline, are two well known examples of aromatic amino acids.
These side chains of such amino acids used to make a protein determine the shape of the protein.
Alpha helices were created at that site when proline was present in the amino acid's main sequence.
As a result, an alpha helix would indeed be present within the folded structure of such a proline-containing protein's main sequence.
Amino acids' primary purpose is to act as that of the components that make up proteins. About Fifty to 2,000 amino acids are normally linked end to end in several configurations to form proteins. Each protein contains a different set of amino acid sequences that are folded and bent in a certain way.
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Approximately once in every _____ births, and infant is born with 45, 47, or even 48 or 49 chromosomes instead of the usual 46.
An newborn is born with 45, 47, 48, or even 49 chromosomes instead of the typical 46 chromosomes approximately once every 166 births.
What Does It Mean When a Baby Is Born With an Extra Chromosome?
Pregnancy is a vulnerable time when your unborn child may be exposed to a number of illnesses. However, several anatomical anomalies that are typically harmful and can lead to difficulties in babies may be present in infants with additional chromosomes.
A human cell contains 46 chromosomes, 23 of which are inherited from each parent. However, in some circumstances, either parent's chromosomes may have been added to or deleted from the growing fetus.
If you are unaware of this genetic phenomena and are interested in learning more, read this post to learn about the potential origins, illnesses, symptoms, and other details about extra chromosomes in newborns.
What Does It Mean When a Baby Is Born With an Extra Chromosome?
Genes are strung like beads along chromosomes, which are threadlike structures. The 47th chromosome in human cells is an additional chromosome. As a result, a child with an additional chromosome will have 23 pairs of chromosomes overall (one from the mother and two from the father or vice versa). Trisomy, which stands for "three bodies," is the term used to describe this disorder.
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4. A student is excitedly telling their friend their
plans for the weekend, and is not listening to the
teacher's lab instructions. During the lab, the
student mixes two of the wrong chemicals
together and an uncontrolled chemical reaction
occurs.
Precautions:
Response:
Answer:
Response: Tell the teacher. Precaution: Always listen to all the instructions before engaging in any activities.
Precautions for Conducting Chemical Experiments: Active Listening: Always pay close attention to the teacher's instructions and lab guidelines. Ignoring instructions can lead to accidents or mistakes.
Read and Understand: Prior to starting any experiment, thoroughly read and understand the lab procedure, including the chemicals being used and any potential hazards.
Proper Attire: Wear appropriate lab attire, including a lab coat, safety goggles, and gloves to protect yourself from potential chemical splashes.
Chemical Compatibility: Familiarize yourself with the chemicals you're using and their potential reactions. Only mix chemicals that are approved and indicated for the experiment.
Labeling: Ensure all chemicals are properly labeled with their names and concentrations. Never use unlabeled or improperly labeled containers.
Workspace Setup: Keep your workspace organized and uncluttered. This minimizes the risk of accidental spills or cross-contamination.
No Distractions: Avoid distractions such as talking to friends during the experiment. Focus on the task at hand to prevent errors.
Small Quantities: When mixing chemicals, use small quantities as instructed in the procedure. This reduces the potential impact of any unexpected reactions.
Test Tubes and Containers: Use appropriate glassware and containers for chemical mixing. Avoid using incorrect or damaged equipment.
Fume Hood: If applicable, conduct experiments in a fume hood to prevent the inhalation of potentially harmful fumes.
Emergency Equipment: Familiarize yourself with the location and proper use of emergency equipment, such as eyewash stations, safety showers, and fire extinguishers.
Disposal: Follow proper disposal procedures for chemicals and waste materials. Never pour chemicals down the sink without proper guidance.
Know What to Do: In case of an accident or unexpected reaction, know the appropriate steps to take. Alert the teacher or lab supervisor immediately.
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in 1939, heinrich klüver and paul bucy surgically lesioned a structure called the in the brain's limbic system, thereby eliminating defensive responses in various mammal species.
When the amygdala of a rhesus monkey was surgically excised in 1939 by neurosurgeon Paul and psychologist Heinrich the typically irritable species became the most placid of animals. the brain's amygdala, which is mostly connected to emotional functions.
Due to the structure's almond-like form, the name "amygdala" is derived from the Greek word "amygdale," which means "almond." The amygdala is situated immediately prior to (in front of) the hippocampus in the medial temporal lobe. The amygdala's primary function is to control emotions like fear and anger. Our memories are given emotional significance via the amygdala. In multiple brain imaging species studies.
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What are derived units?
Answer:
A derived unit is a unit that results from a mathematical combination of SI base units. Calculations involving derived units follow the same principles as other unit conversion calculations.
Explanation:
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An amoeba is a unicellular organism that takes in food by endocytosis. The
cells store small food particles in food yacuoles until they can be digested.
Which cell organelles must fuse with the food vacuoles so that an amoeba
can digest its food?
A. Lysosomes
B. Ribosomes
C. Nuclei
D. Mitochondria
SUBMIT
The cell organelles must fuse with the food vacuoles so that an amoeba
can digest its food is option A. Lysosomes.
A lysosome is a membrane-certain cellular organelle that incorporates digestive enzymes. Lysosomes are worried about numerous mobile techniques. They spoil extra or mobile elements. they may be used to damage invading viruses and microorganisms.
Lysosomes are worried about diverse cell processes. They spoil extra or cellular elements. they may be used to destroy invading viruses and microorganisms. If the cellular is broken past restore, lysosomes can help it to self-destruct in a manner called programmed cell demise, or apoptosis.
An amoeba regularly called an amoeboid, is a type of cellular or unicellular organism which has the ability to modify its form, frequently with the aid of extending and retracting pseudopods. Amoebae do not shape an unmarried taxonomic group; as an alternative, they are found in each fundamental lineage of eukaryotic organisms.
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A cell is placed in to a solution. upon microscopic inspection of the cell, there appears to be no noticeable change in shape or size to the cell. what type of solution has this cell been placed?
The cell has been placed in an isotonic solution.
In the field of biology, an isotonic solution can be described as a solution in which the concentration of solutes and solvents is the same as the concentration of solutes and solvents inside the cell. As a result, there is no concentration gradient inside or outside of a cell.
When a cell is placed in an isotonic solution, the solvent would neither move into a cell nor move out of a cell because there is no concentration gradient. An equilibrium between the solutes and the solvent is present both outside and inside the cell in an isotonic solution. Hence, there will be no noticeable change in the shape or size of a cell when it is placed in an isotonic solution.
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