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The following diagram is a longitudinal section of the root apex.
Identify the parts labeled A, B and C.
(Solved)
The following diagram is a longitudinal section of the root apex.
Identify the parts labeled A, B and C.
Date posted:
May 24, 2019
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Answers (1)
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The graph below represents the growth in a certain phylum.
(a) Name the type of growth pattern shown on the graph.
(b) Identify the process represented...
(Solved)
The graph below represents the growth in a certain phylum.
(a) Name the type of growth pattern shown on the graph.
(b) Identify the process represented by X.
(c) Name the hormone responsible for the process in (b) above.
Date posted:
May 24, 2019
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Answers (1)
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What characteristics do mammalian lungs and the gills of bony fish have in common that enables them to exchange gases efficiently?
(Solved)
What characteristics do mammalian lungs and the gills of bony fish have in common that enables them to exchange gases efficiently?
Date posted:
May 24, 2019
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Answers (1)
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State two adaptation of herbivorous which enable them to digest cellulose?
(Solved)
State two adaptation of herbivorous which enable them to digest cellulose?
Date posted:
May 24, 2019
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Answers (1)
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With a reason, name the organelles that would be found in large numbers in cell of secretory glands.
(Solved)
With a reason, name the organelles that would be found in large numbers in cell of secretory glands.
Date posted:
May 24, 2019
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Answers (1)
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State three sites of gaseous exchange in mesophytes.
(Solved)
State three sites of gaseous exchange in mesophytes.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below shows an experiment on germination peas.
a) (i) What changes are observable at the end of the experiment?
(ii) Give the reason the...
(Solved)
The diagram below shows an experiment on germination peas.
a) (i) What changes are observable at the end of the experiment?
(ii) Give the reason the observation in a(i) above.
(b) If water had been used instead of caustic potash in the experiments, what would be observed?
Date posted:
May 24, 2019
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Answers (1)
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Describe the way by which terrestrial plants are adapted to living in arid and semi-arid ecosystems.
(Solved)
Describe the way by which terrestrial plants are adapted to living in arid and semi-arid ecosystems.
Date posted:
May 24, 2019
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Answers (1)
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Describe the adaptations of wind pollinated flowers.
(Solved)
Describe the adaptations of wind pollinated flowers.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represent a seedling.
a) Name the structure labelled B
b) State the functions of the parts labelled A and C
c) Name the...
(Solved)
The diagram below represent a seedling.
a) Name the structure labelled B
b) State the functions of the parts labelled A and C
c) Name the type of germination exhibited by the seedling.
d) State three conditions within the seed necessary for germination.
e) What is the importance of optimum temperature in seed germination ?
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represents a transverse section of a young stem.
a) Name the parts labelled A and C on the diagram.
b) State the functions...
(Solved)
The diagram below represents a transverse section of a young stem.
a) Name the parts labelled A and C on the diagram.
b) State the functions of the parts labelled B, D and E
c) List three differences between the section shown above and one that would be obtained from the
root of the same plant.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below is a cross section through a part of human ileum.
a) i) Identify the structure drawn above.
ii) State the significance of the...
(Solved)
The diagram below is a cross section through a part of human ileum.
a) i) Identify the structure drawn above.
ii) State the significance of the structure shown above.
b) Name the parts labelled A, B and C
c) Give the functions of the part labelled B and C.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represents phloem tissue from the stem of a plant.
i) Name the structure labelled A.
ii) State TWO substances transported in the phloem....
(Solved)
The diagram below represents phloem tissue from the stem of a plant.
i) Name the structure labelled A.
ii) State TWO substances transported in the phloem.
iii) Give the function of cell B.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represents recycling of nutrients in a certain ecosystem.
a) Name the trophic level represented by M.
b) Name the processes represented by. I,II,III...
(Solved)
The diagram below represents recycling of nutrients in a certain ecosystem.
a) Name the trophic level represented by M.
b) Name the processes represented by. I,II,III
c) Name the organisms involved in process II.
d) What would happen within the ecosystem if all secondary consumers were eliminated?
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represents the internal structure of a bean seed.
a) Name the parts the seed embryo represented by letter X and Y.
b) What...
(Solved)
The diagram below represents the internal structure of a bean seed.
a) Name the parts the seed embryo represented by letter X and Y.
b) What type of germination would result if the hypocotyl elongates faster.
c) What is the significance of the part labelled Y emerging first during germination.
Date posted:
May 24, 2019
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Answers (1)
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An investigation was carried to show the effect of antidiuretic hormone (ADH) on urine production in a mammal. The rate of urine production was measured...
(Solved)
An investigation was carried to show the effect of antidiuretic hormone (ADH) on urine production in a mammal. The rate of urine production was measured over a period of 30 minutes. Five minutes after measurements began; ADH was injected into a vein of the mammal. The results are shown in table below.
a) Plot a graph of rate of urine production against time.
b) Name the gland that releases ADH.
c) Describe the effect of injection of ADH on the rate of urine production in the mammal in this investigation.
d) Describe the mechanism by which ADH produces the effect seen in this investigation.
e) In a similar investigation, an injection of sodium chloride (salt) solution was given after five minutes instead of ADH. This injection was observed to affect urine production in a similar way to ADH. Suggest how the sodium chloride brought about this effect.
Date posted:
May 24, 2019
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Answers (1)
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State any two differences between an ovum and a sperm.
(Solved)
State any two differences between an ovum and a sperm.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represents the nitrogen cycle.
a) State the process labelled.
A
D
b) Name the compound represented by B.
c) Name the group of organisms labelled...
(Solved)
The diagram below represents the nitrogen cycle.
a) State the process labelled.
A
D
b) Name the compound represented by B.
c) Name the group of organisms labelled C.
d) i) Name the group of plants which promote process A.
ii) State the part of the plant where process A takes place.
e) How would excess pesticides in the soil interfere with process A.
Date posted:
May 24, 2019
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Answers (1)
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Give a reason why lack of roughage in the diet often leads to constipation.
(Solved)
Give a reason why lack of roughage in the diet often leads to constipation.
Date posted:
May 23, 2019
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Answers (1)
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Explain how the process of evolution may result to the formation of a new species.
(Solved)
Explain how the process of evolution may result to the formation of a new species.
Date posted:
May 23, 2019
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Answers (1)