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(a) A mouse has a larger surface area to volume ratio than a dog, hence loses more energy per unit body weight/ mouse loses heat faster than a dog so requires more energy to replenish lost energy
(b) Lactic acid, energy/ Adenosine triphosphate
johnmulu answered the question on May 4, 2017 at 11:14
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Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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Glucose solution was boiled and added on top it. The glucose solution was then allowed to cool before yeast suspension was added.
(a) Why was the glucose solution boiled before adding the yeast Suspension?
(b) What was the importance of cooling the glucose solution before adding the yeast suspension?
(c) What was the use of oil in the experiment?
(d) What observation would be made in test tube B at the end of the experiment?
(e) Suggest a control for this experiment.
Date posted: May 4, 2017. Answers (1)
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The diagram below represents some gaseous exchange structures in humans.
(a) Name the structure labeled K, L and M.
(b) Name the process by which inhaled air moves from the structure labeled L into blood capillaries
(c) Give the scientific name of the organism that causes tuberculosis in humans
Date posted: May 4, 2017. Answers (1)
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(a) Name two structures for gaseous exchange in aquatic plants
(b) What is the effect of contraction of the diaphragm muscles during breathing in mammals?
Date posted: May 4, 2017. Answers (1)
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The diagram below illustrates a blood capillary surrounding a structure for gaseous exchange in human beings
(a) Name the gases exchange structure.
(b) Identify the gases labelled Y and Z.
(c) How does cigarette smoking lead to lung cancer
Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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The diagram below shows the gaseous exchange system of a locust.
(a) Name the structure labelled Q.
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(c) How is the part labeled S structurally adapted tom its function?
Date posted: May 4, 2017. Answers (1)
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The diagram below represents a model used to demonstrate breathing in mammals.
(a) Name the mammalian structure represented by the parts labeled D and E.
(i) D (ii) E
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(c) Explain the observation in (b) above
Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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Date posted: May 4, 2017. Answers (1)
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Apart from the lungs, name two gaseous exchange surface in a frog.
Date posted: May 4, 2017. Answers (1)
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(b) How is the surface named in (a) above suited to its function. (Solved)
(a) Name the gaseous exchange surface in insects.
(b) How is the surface named in (a) above suited to its function.
Date posted: May 4, 2017. Answers (1)
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(Solved)
State four characteristics of gaseous exchange surfaces.
Date posted: May 4, 2017. Answers (1)