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An individual is of blood group B positive.
a) Name the antigens in the individual's blood
b) Give the reason why the individual's cannot receive blood from a blood group A donor
Date posted:
May 3, 2017
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The table provided shows the transportation of substances in the human body
Name the substances represented by M, N and P
Date posted:
May 3, 2017
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The diagram below shows blood circulation in a mammalian tissue.
a) Name the part 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) Name one component of the blood that is not found in the part labeled P.
Date posted:
May 3, 2017
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Red blood cells are adapted to their function. Explain three ways in which they are adapted to their function.
Date posted:
May 3, 2017
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Explain why it is not advisable to be in a poorly ventilated room with a burning charcoal stove
Date posted:
May 3, 2017
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Why would carboxyhaemoglobin lead to death
Date posted:
May 3, 2017
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The diagram below shows a vertical section through a mammalian heart.
a) Name the parts labeled A, B, E and F.
b) Give a reason why the wall of chamber C is thicker than chamber D
Date posted:
May 3, 2017
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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?
Date posted:
May 3, 2017
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Describe the path taken by carbon dioxide released from the tissue of an insect to the atmosphere.
Date posted:
May 3, 2017
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The diagram below shows a transverse section of a plant organ.
a) Name the plant organ from which the section was obtained.
b) i) Name the class to which the plant organ was obtained.
ii) Give a reason for your answer in (b)(i) above
Date posted:
May 3, 2017
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State one adaptation of xylem vessels to their function.
Date posted:
May 3, 2017
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Why are plants able to accumulate most of their waste products for long?
Date posted:
May 3, 2017
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The number of stomata on the lower and upper surfaces of two leaves from plant species X and Y were counted under the field of view of a light microscope. The results were as shown in the table below.
a) Which of the two leaves would be expected to have a lower rate of transpiration?
b) Give a reason for your answer in (a) above
Date posted:
May 3, 2017
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The diagram below shows a transverse section of a plant organ.
a) Name the plant organ from which the section was obtained.
b) i) Name the class to which the plant organ was obtained
ii) Give a reason for your answer in (b)(i) above.
c) Name the part labeled X.
Date posted:
May 2, 2017
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Name the tissue in plants responsible for:
a) Transport of water and mineral salts
b) Transport of carbohydrates
c) Primary growth
Date posted:
May 2, 2017
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The diagram below represents a plant tissue.
a) Name the tissue.
b) Name the cell labeled K and L.
c) What is the function of the compound cell?
Date posted:
May 2, 2017
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State two ways in which the root hairs are adapted to their function.
Date posted:
May 2, 2017
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The diagram below represents a traverse section through a plant organ
a) From which plant organ was the section obtained
b) Give two reasons for your answer in (a) above.
c) Name the part labeled J, K and L.
d) State two functions of the parts labeled
Date posted:
May 2, 2017
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The diagram below represents regions of a root tip
a) Name the two regions above X in ascending order.
b) State the function of the part labeled X
Date posted:
May 2, 2017
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The diagram below represents part of phloem tissue.
a) Name the structure labeled R and S and the cell labeled T.
b) State the function of the structure labeled S.
c) Explain why xylem is a mechanical tissue.
Date posted:
May 2, 2017
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Name two processes that bring about the translocation of manufactured food.
Date posted:
May 2, 2017
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State two ways in which xylem vessels are adapted to their function.
Date posted:
May 2, 2017
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The diagram below represents the pathways of water from the soil into the plant.
a) Name the structures labeled K and L.
b) Name the process by which minerals salts enter into the plant.
Date posted:
May 2, 2017
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The diagram below represents a transverse section of a young stem
a) Name the parts labeled A and B.
b) State the function of the parts labeled C, D and E
Date posted:
May 2, 2017
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a)Name the appropriate food substance from substance for each of the following enzymes (i)Ptyalin (ii) Pepsin(b) State the causes and two symptoms of Beri-beri.
Date posted:
May 2, 2017
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State two ways in which the human intestinal villus is adapted to its function.
Date posted:
May 2, 2017
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What is the role of bile salts in digestion in humans?
Date posted:
May 1, 2017
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The diagram below represents the lower jaw of a mammal
a) Name the mode of nutrition of the mammal whose jaw is shown.
b) i) Name the toothless gap labeled K.
ii) State the function of the gap.
c) Name the substance that is responsible for hardening of teeth.
Date posted:
May 1, 2017
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Explain how the following factors determine the daily energy requirement in human:
(a)Age
(b)Occupation
(c) Sex
Date posted:
May 1, 2017
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Explain how the carnassial teeth of a dog are adapted to their function.
Date posted:
May 1, 2017