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Form 2 Biology transport in animals questions and answers
State two differences between open and closed circulatory systems.
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1.
State two ways by which Acquired Immuno Deficiency Syndrome (AIDS) virus is transmitted.
2.
Describe the path taken by carbon dioxide released from the tissue of an insect to the atmosphere.
3.
(a) How may excessive bleeding results in death? (b) Name the process by which the human body naturally stops bleeding? (c) How can low blood volume be brought back to normal?
4.
Why are people with blood group O universal donors?
5.
A person whose blood group is AB requires a blood transfusion. Name the blood groups of the donors.
6.
(a) The type of circulatory system found in members of the class insect is... (b) Name the blood vessel that transports blood from: (i) Small intestines to the liver. (ii) Lungs to the heart.
7.
In what form is oxygen transported from the lungs to the tissues?
8.
Distinguish between natural and acquired immunity.
9.
The diagram below shows a vertical section through a mammalian heart. (a) Name the parts labeled A, B, E and F. (b) Use arrows to show the direction in which blood flows in the heart. (c) Give a reason why the wall of chamber C is thicker than chamber D.
10.
Why would carboxylhaemoglobin lead to death?
11.
(a) Name one defect of circulatory system in humans. (b) State three functions of blood other than transport.
12.
(a) What prevents blood in veins from flowing backwards? (b) State two ways in which the red blood cells are adapted to their function.
13.
(a) Name the antigens that determine human blood groups. (b) State the adaptation that enables the red blood cells to move in blood capillaries.
14.
(a) What is a single circulatory system? (b) Name an organism which has single circulatory system. (c) Name the opening to the chamber of the heart of an insect.
15.
(a) State three structural differences between arteries and veins in mammals. (b) Name a disease that causes thickening and hardening of arteries.
16.
Explain why it is not advisable to be in a poorly ventilated room with a burning charcoal stove.
17.
Explain three ways in which red blood cells are adapted to their function.
18.
State three structural differences between arteries and veins.
19.
The diagram below shows blood circulation in a mammalian tissue. (a) Name the parts labeled P and Q. (b) Name the substances that are: (i) Required for respiration that move out of capillaries (ii) Removed from tissue cells as a result of respiration. (c) Explain how substances move from blood capillaries into the tissue cells. (d) Name one component of the blood that is not found in the part
20.
(a) Describe the condition known as varicose veins. (b) What is the role of blood platelets in the clotting process?
21.
(a) State two ways in which heart muscles are special. (b) Name the muscles found in the following organs: Stomach Bone
22.
What is the function of contractile vacuoles of amoeba?
23.
State two differences between open and closed circulatory systems.
24.
Using a relevant example, describe how an allergic reaction occurs in a human being.
25.
State the advantage of possessing blood group AB.
26.
Explain three protective functions of mammalian blood.
27.
Describe the process of blood clotting in human beings.
28.
Why is a burning charcoal stove in a poorly ventilated room likely to cause death of the inhabitants?
29.
The table provided shows the transportation of substances in the human body. Name the substances represented by M, N and P.
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