Physiology Questions
Asked by Users

Is there an organ in our body which doesn't have blood?  There is an organ in the body without blood?

What are basophils?  Click on post comments to answer.

What is reflex action?  Click on post comments to answer.

What is the difference between catabolism and anabolism?  What is the concept of both?

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What are gametes?  ?

Blood Types Question  Assume a male with type O blood mates with a female who has type A blood. The female's mother had type A blood and her father had type B. What is the probability ...

What is the most important factor determining whether agglutination will occur following a blood transfusion?  cross matching

What happens to pepsin when it enters the duodenum?  I am not sure about the conditions of the duodenum and I am also unsure of the optimum pH and temperature for pepsin to work.

Why is the zygote called fertilized egg?  Reproduction in organisms.

Explain how constipation and diarrhea occur?  ?

What are the products of digestion of lactose sugar?  fructose and galactose

What role does the right atrium play in the circulatory system ?   I don't know the answer but i think it has something to do with pumping blood.

Where are cell bodies of neurons of serotonin located?  In what part of the brain is serotonin released? What are the synaptic targets?

What kind of energy is required to climb a ladder?  What kind of energy is required to climb a ladder?

How is urea formed and excreted in mammalian body?  How is urea formed and excreted in mammalian body?

What is short-sightedness and long-sightedness in humans?  Describe the full eye structure and both the terms briefly. Then explain the changes in the muscles of eye in short and long sightedness.

How tissue function is related to the types of cells that make up the tissue?  Tissue is a group or mass of similar cells working together to perform certain common functions.

Explain how blood types and RH factor are determined based on antigen and antibody properties?  I don't understand.

Name the type of neuron found completely within the CNS.  I am clue less to the answer.

What hormones are found in the thyroid?  I dont know what it is.

What is the maximum length of humerus ?  From bones

Which lasts longer, active or passive immunisation?  immunisation

What is different between syngamy and fertilization?  ?

Why must an organism need to be able to control catalytic activities?   for metabolism and energy

Why our stomach muscles do not get digested while the meat we eat is easily digested?  plz tell me

What is the function of an atrial ventricular valve?  Cardiovascular system.

What is the purpose of cerebral convolutions?  Answer.

Explain how the endocrine system impacts respiratory function?  Epinephrine and norepinephrine dilate airways during exercise and other stresses. Erythropoietin regulates the amount of oxygen carried in the blood by ...

What is immunological tolerance?  The inability to initiate an immune response?

Which mechanisms provide variability for antibodies?  Which mechanisms make the antibodies variable?

Why rapid growth of human being occur in winter?  Rapid release of growth hormone?

How would I test a sample of urine for glucose?  I am doing my biology gcse, and have been asked this question which I am stuck on, my aunt trying to help me, but think her answer is dated.

How is glucose transported to all the cells of the body?  Click on post comments to answer.

Which of the organelles in the intestinal cells is most likely to affect digestion of food?  Click on post comments to answer.

Why fats, proteins and carbohydrates need to be digested, but mineral salts and water do not?  Click on post comments to answer.

Can you have no T cells in your body ?  What would happen if you dont have any T cells?

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Identify the place where the digestion of food is completed in our body.  Click on post comments to answer.

What is meant by digestion?  This is the breaking down of large molecules of food to smaller molecules for easy absorption.

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Explain the differences between large intestine and small intestine in terms of their structure that makes both intestines function differently.  Click on post comments to answer.

How does the muscular system of vertebrates work?  Click on post comments to answer.

What is a circulatory system?  Click on post comments to answer.

How the homeostasis of blood is maintained?  Homeostasis of blood is maintained by:

1)breaking down of glycogen in liver and muscles, when blood sugar level falls.

2)converting excess sugar ...

How many organs are in humans?  Click on post comments to answer.

What is the difference between digestion of a cow, rabbit and a human?  Click on post comments to answer.

What are the receptors of astringent taste?  Click on post comments to answer. .

What are the parameters involved in renal functioning diagnosis and what are the difficulties occuring during diagnosis and treatment of renal failure?  Click on post comments to answer.

What would happen if a mistake was made during gametogenesis?  Click on post comments to answer.

What is the function of the bone marrow?  Click on post comments to answer.

Which are the main cells of the nervous system?  Click on post comments to answer.

Describe how the tissues on the gaseous exchange system contribute to the functioning of the lungs?  The trachea has cartilage which provides support to the lungs.

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Which statement is true about blood transfusion between two humans:   a) A person with blood group A+ can give blood to a person with blood group A-.
b) A person with blood group A+ can give blood to a person with blood ...

What is homeostasis?  A self regulating mechanism which seeks to maintain internal temperatures at a near constant for the proper fuctioning of cells.

Click on post comments ...

What two substances react together during respiration?  Click on post comments to answer.

What is the biological phenomenon of the villus?  Click on post comments to answer.

By observing the mammal cardiac stomach, mammal pyloric stomach and mammal duodenum explain how digestive enzymes work efficiently?  What is the main role of liver in digestive system?

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Question on Rh factor.  What is the biological logic of administering anti-Rh antibodies to Rh- mothers immediately after they give birth to an Rh+ baby?

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What is the biological logic of administering anti-Rh antibodies to Rh- mothers immediately after they give birth to an Rh+ baby?  Click on post comments to answer.

Note: Read our review on blood types.

In vertebrates, the nervous system is composed of the brain and spinal cord?  Click on post comments to answer.

What are macro vitamins? What are the examples of them?  I am a caregiver student and one of my subject is nutrition. We are asked to submit a report on macrovitamins and examples of them... Can you reply me ...

How breathing process takes place?  The respiratory system is the anatomical system of an organism that introduces respiratory gases to the interior and performs gas exchange. In humans and ...

Why is it difficult for burns victims to re-grow skin they have lost?  Click on post comments to answer.

Why complete recovery from injuries to the nervous system may not occur?  The nerve cells in human nervous system seldom undergo mitosis. Based on this information, explain why complete recovery from injuries to the nervous system ...

Name the things that make up blood.  1. Name the liquid part of blood.

2. What do red cell do?

3. What are phagocytes?

4. What are antibodies?

5. How do platelets help blood clot?...

What is enterogastrone and what effect does it have on digestive activity?  Click on post comments to answers.

Where are the T cells activated?  My question is part of the lymphatic system.


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Wwhat are the types of gas exchange systems?  Respiration?

What is digestion?  Click on post comments to answer.

What is the term in ossification for cells that can differentiate under certain conditions?  Intramembranous ossification?

What is digestive system?  What is digestive system?

What are the chemical reactions between trypsin and protein and pepsin and protein?   Digestion of food in digestive system.

What are the types of excretion in human body?  Excretion.

What is the difference between menstrual cycle and oestrous cycle?  When I studied menstrous cycle, I came to know that oestrous cycle is one of its components. So i could not understand what could be the difference between ...

Explain the structure of the female reproductive system.  Ovary...

What type of substance serves as a chemical signal and can be sent around the body?  What type of substance is adrenaline, insulin and glucagon, as examples?

Which structures would be subjected to the lowest blood pressure?  Lowest blood pressure.

How does inspiration (breathing in) takes place in a mammal?  I want to know the answer please. Thanks.

Note: Read our Physiology reviews.

Are the lungs in direct contact with the external environment?  Are human lungs in direct contact with the external environment? Do the lungs have any filters to prevent any food crumbs from being ingested?

What force is usually transmitted along the axis of the bone?  Force usally transmitted along the axis of bone?

What are three external factors monitored by the nervous system?  What are three internal factors monitored by the nervous system?

Filtration rate in the glomerulus is increased by?  Filtration rate in the glomerulus is increased by...

Why glucose appear in urine after severe muscular exercise?  Glucose metabolism.

What is a cell tissue versus a specialized cell?  I believe cell tissue is made up of a group of specialized cells, whereas a specialized cell is a cell with a specific function.

If a single-cell organism is living in a hypotonic enviroment, how would it maintain homeostasis?  If a single-cell organism is living in a hypotonic enviroment, how would it maintain homeostasis?

Does everyone need the same energy supply from food?  ?

Does fear affect blood pressure?  Does fear affect blood pressure? And how?

What determines whether you are Rh positive or negative blood type?  I don't know.

As the CO2 increases in the cells, what tissue takes the CO2 away from the cells?  By what process does the CO2 get into that tissue?

This tissue comes close to air in lungs. What process happens to the CO2 there?

What direction ...

Compare bone to cartilage tissue,  Not sure.

Human eye (hypermetropia)  It is said that a newly born child suffers from hypermetropia. As he grows up, his eyes become normal. I mean to say that when a child is born from the ...

The strength of a muscle contraction in response to different levels of stimulation is determined by the ______?  Need help.

Why is transpiration such an important process in plants?  I think is something related to water loss.

Graafian follicle is surrounded by what?  Options are theca externa, theca interna or
theca albuginea.

What's the relationship between the endocrine system and the immune system?  I need help on understanding this question for a project.

How does the heart coordinate its four pumps?  ?

Describe the process of acid secretion in the stomach. Include cell types, transporters, enzymes and substrates/products.  The acid secreted by the stomach is generated inside parietal cells. The secretion of acid by parietal cells is stimulated by parasympathetic nervous activity,...

In what three ways does the formation of urea prevent intoxication?  In what three ways does the formation of urea prevent poisoning?

Explain how collagen tissue is structured for its function.  There are different collagen types. The main function of these proteins is to keep the shape and the structural rigidity of the tissue. (Collagen is the ...

What would happen to red blood cells if they were placed in distilled water?  I don't know the answer.

How many are the types of epithelial tissues?  Four?

What is Belfour's law?  It is something related to reproduction.

Is there a link between the thyroid gland and follicle stimulating growth hormone?  No, I think the thyroid only produces T3 and T4.

How red blood cells are not attacked by our immune system although they do not have MHC class I in their surface?  How red blood cells are not attacked by our immune system although they do not have MHC class I in their surface?

Do carbohydrates have anything to do with the esophagus?  Either mechanical or chemical.

What is the difference between male and female gametogenesis?  Spermatogenesis makes sperm in the testes and oogenesis makes eggs in the ovaries, but there are some other differences.

Which statements apply to "food"?  I really do no the answer help me.

Groups of different kinds of tissues form?  ?

What are the ways that the artery differs from the vein?  I dont know please help.

What are the main differences between asexual and sexual reproduction?  The main differences between "Asexual reproduction" and "Sexual Reproduction" is that:

Asexual- There are no sex cells. Only one individual is involved ...

How nerve cells multiply without centrioles?  Cells in olfactory epithelium and hypothalamus do not have centrioles, how the multiply?

(Don't they?)

Why gametogenesis results in female in two unequal sized elements?  I am student in the Biology department and I have this question in embriology.

Note: You may find answer on our Gametogenesis page.

What happens to the monomers of food molecules once they are broken down?  Do they make the digestion easier?

What is the function of meiosis in gametogenesis?  Meiosis.

What are the three types of protein fibers in loose connective tissue?  What is it?

Cell-to-cell junctions which allow for instantaneous communication can be found in which kind of cells?  Red blood cells, cartilage, heart muscle cells or bone cells?

What happens if two different species mate?  Does it stop cell division in the zygote? If so, what happens to the zygote?

What are the changes in gases during respiration?  Intermediate respiration...

What is the role of relaxin hormone?  HELPS IN REPRODUCTIVE SYSTEM...

What is the fuction of lymphatic nodes?  What is the fuction of lymphatic nodes?

In which part of the circulatory system are there valves?  Which part of the circulatory system are there valves?

What cell tissues make up the endocrine system?  Epithelial?