Arthropoda
johnmulu answered the question on May 5, 2017 at 07:06
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The diagram below represents a fern
(Solved)
The diagram below represents a fern
Name
(a) The parts labeled A and B.
(b) The division to which the plant belongs.
Date posted:
May 5, 2017
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State one use of the following excretory products of plants (a) Colchicine (b) papain
(Solved)
State one use of the following excretory products of plants (a) Colchicine (b) papain
Date posted:
May 5, 2017
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State one economic importance of each of the following plant excretory products. (a) Tannin (b) Quinine (c) Caffeine (d) Cocaine (e)Papain
(Solved)
State one economic importance of each of the following plant excretory products. (a) Tannin (b) Quinine (c) Caffeine (d) Cocaine (e)Papain
Date posted:
May 5, 2017
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Give two reasons why animals have specialized organs for excretion as compared to plants
(Solved)
Give two reasons why animals have specialized organs for excretion as compared to plants
Date posted:
May 5, 2017
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Answers (1)
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Explain what happens in humans when concentration of glucose in the blood decreases below the normal level.
(Solved)
Explain what happens in humans when concentration of glucose in the blood decreases below the normal level.
Date posted:
May 5, 2017
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Answers (1)
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Explain why plants do not require specialized excretory organs
(Solved)
Explain why plants do not require specialized excretory organs
Date posted:
May 5, 2017
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State the importance of the following processes that takes place in the nephrons of a human kidney
(a) Ultra filtration (b) Selective reabsorption
(Solved)
State the importance of the following processes that takes place in the nephrons of a human kidney
(a) Ultra filtration (b) Selective reabsorption
Date posted:
May 5, 2017
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Answers (1)
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(a)Which portion of the human nephron are only found in the cortex?
(b) (i) What would happen if a person produces less antidiuretic hormone?
(ii) What term is given to the condition described in (c) (i) above
(Solved)
(a)Which portion of the human nephron are only found in the cortex?
(b) (i) What would happen if a person produces less antidiuretic hormone?
(ii) What term is given to the condition described in (c) (i) above
Date posted:
May 5, 2017
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Answers (1)
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The diagram below shows a section through the mammalian skin.
(Solved)
The diagram below shows a section through the mammalian skin.
(a) Name the parts labeled E, F and G
(b) State two functions in each case of substance secreted by the structures labeled (i) H (ii) I.
Date posted:
May 5, 2017
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Answers (1)
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Adult elephants flap their ears twice as much as their calves in order to cool their bodies when is it hot. Explain.
(Solved)
Adult elephants flap their ears twice as much as their calves in order to cool their bodies when is it hot. Explain.
Date posted:
May 4, 2017
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Answers (1)
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The temperature of a person was taken before, during and after taking a cold bath. The results are shown in the graph below.
(Solved)
The temperature of a person was taken before, during and after taking a cold bath. The results are shown in the graph below.
(a)Explain why the temperature fell during bath.
(b) What changes occurred in the skin that enabled the body temperature to return to normal?
Date posted:
May 4, 2017
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Answers (1)
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A person was found to pass out large volumes of dilute urine frequently. Name the (a) Disease the person was suffering from, (b) Hormone that was deficient
(Solved)
A person was found to pass out large volumes of dilute urine frequently. Name the (a) Disease the person was suffering from, (b) Hormone that was deficient
Date posted:
May 4, 2017
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Answers (1)
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State the economic importance of anaerobic respiration in plants.
(Solved)
State the economic importance of anaerobic respiration in plants.
Date posted:
May 4, 2017
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Answers (1)
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The diagram below shows an experimental set-up to investigate a certain physiological process in plants .
(Solved)
The diagram below shows an experimental set-up to investigate a certain physiological process in plants .
(a) State the aim of the experiment
(b) Account for the expected colour change in tube F.
Date posted:
May 4, 2017
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Answers (1)
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State two reasons why accumulation of lactic acids leads to an increase in heartbeat.
(Solved)
State two reasons why accumulation of lactic acids leads to an increase in heartbeat.
Date posted:
May 4, 2017
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Answers (1)
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In an experiment, disinfected soaked bean seeds were put in a vacuum flask which was then fitted with a thermometer as shown in the diagram below.
(Solved)
In an experiment, disinfected soaked bean seeds were put in a vacuum flask which was then fitted with a thermometer as shown in the diagram below.
The temperature reading were taken every morning for three consecutive days
(a) Which process was being investigated?
(b) Why were the seeds disinfected?
(c) Why was a vacuum flask used in the set-up?
(d) How would a control for this experiment be set?
Date posted:
May 4, 2017
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Answers (1)
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Explain how anaerobic respiration is applied in sewage treatment
(Solved)
Explain how anaerobic respiration is applied in sewage treatment
Date posted:
May 4, 2017
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Answers (1)
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(a) A dog weighing 15.2 kg requires 216kj while a mouse weighing 50g requires 2736kj per day. Explain.
(b) What is the end-product of respiration in animals when there is insufficient oxygen supply?
(Solved)
(a) A dog weighing 15.2 kg requires 216kj while a mouse weighing 50g requires 2736kj per day. Explain.
(b) What is the end-product of respiration in animals when there is insufficient oxygen supply?
Date posted:
May 4, 2017
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Answers (1)
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Give two reasons why accumulation of lactic acid during vigorous exercise leads to an increase in heartbeat.
(Solved)
Give two reasons why accumulation of lactic acid during vigorous exercise leads to an increase in heartbeat.
Date posted:
May 4, 2017
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Answers (1)
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The diagram below shows a set - up that was used to demonstrate fermentation
(Solved)
The diagram below shows a set - up that was used to demonstrate fermentation
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
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Answers (1)