a) To show that light is necessary for photosynthesis;
b) Only the uncovered areas turned blue- black with iodine; the part covered with aluminum foil did not receive light and thus could not carry out photosynthesis
marto answered the question on October 4, 2019 at 07:55
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Name two products of light reaction used in the dark reaction.
(Solved)
Name two products of light reaction used in the dark reaction.
Date posted:
October 4, 2019
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Answers (1)
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(a) State two difference between monosaccharide and polysaccharides.
(b) Name the bond found in proteins
(Solved)
(a) State two difference between monosaccharide and polysaccharides.
(b) Name the bond found in proteins
Date posted:
October 4, 2019
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Answers (1)
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What is glycolysis?
(Solved)
What is glycolysis?
Date posted:
October 4, 2019
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Answers (1)
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Study the diagram below and answer the questions that follow.
(Solved)
Study the diagram below and answer the questions that follow.
(a) Label the parts A and B
(b) State one observable difference between the structure above and the liverwort
Date posted:
October 4, 2019
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Answers (1)
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Explain why small mammals such as moles feed more frequently than larger ones such as elephants.
(Solved)
Explain why small mammals such as moles feed more frequently than larger ones such as elephants.
Date posted:
October 4, 2019
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Answers (1)
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Study the dental formula given below.
(Solved)
Study the dental formula given below.
(a) Identify with reasons the mode of feeding of the animals whose dental formula is given above
(b) Calculate the total number of teeth in the mouth of the above animal
Date posted:
October 4, 2019
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Answers (1)
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State three ways by which the rate of enzyme controlled reactions can be increased.
(Solved)
State three ways by which the rate of enzyme controlled reactions can be increased.
Date posted:
October 4, 2019
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Answers (1)
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The concentration of carbon IV oxide in a tropical forest was measured during the course of 24 hour period from mid-night. The graph below shows...
(Solved)
The concentration of carbon IV oxide in a tropical forest was measured during the course of 24 hour period from mid-night. The graph below shows the results obtained.
Account for the results obtained at:
(i) Midnight.
(ii) At 12.00 noon
Date posted:
October 4, 2019
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Answers (1)
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a)Name the specific part of the chloroplast where the following processes occur.
(Solved)
a)Name the specific part of the chloroplast where the following processes occur.
(i) Carbon IV oxide fixation
(ii) Photolysis
(b) State one way in which the dark reactions of photosynthesis depends on light reaction.
Date posted:
October 4, 2019
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Answers (1)
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The table below shows three enzymes A, B and C and their respective optimum pH.
(Solved)
The table below shows three enzymes A, B and C and their respective optimum pH.
(i) Name the most likely region of the alimentary canal of a mammal where enzyme B would be found.
(ii) Give a reason for your answer in (a) (i) above
Date posted:
October 4, 2019
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Answers (1)
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The diagram below represents a cell organelle
(Solved)
The diagram below represents a cell organelle.
(i) Name the part labeled y
(ii) State the function of the part labeled X
State the function of the vitamin named in (i) above
Date posted:
October 4, 2019
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Answers (1)
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Below is a process that takes place along the mammalian digestive system.
(Solved)
Below is a process that takes place along the mammalian digestive system.
(a) Name the processes represented by A and B
(b) Name part of the alimentary canal where the process B takes place
Date posted:
October 4, 2019
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Answers (1)
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Briefly explain the fate of the following products from the light stage of the process of
Photosynthesis:
(a) Oxygen
(b) Hydrogen
(c) ATP
(Solved)
Briefly explain the fate of the following products from the light stage of the process of
Photosynthesis:
(a) Oxygen
(b) Hydrogen
(c) ATP
Date posted:
October 3, 2019
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Answers (1)
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State two ways in which guard cells differ from other epidermal cells.
(Solved)
State two ways in which guard cells differ from other epidermal cells.
Date posted:
October 3, 2019
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Answers (1)
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Briefly explain the symbiotic relationship in the root nodule of a leguminous plant.
(Solved)
Briefly explain the symbiotic relationship in the root nodule of a leguminous plant.
Date posted:
October 3, 2019
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Answers (1)
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Briefly explain the effect of poisoning the roots hair on the uptake of nitrate by plants.
(Solved)
Briefly explain the effect of poisoning the roots hair on the uptake of nitrate by plants.
Date posted:
October 3, 2019
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Answers (1)
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a)State the role of emulsification in the digestion of fats in the alimentary canal.
b) What is the function of hydrochloric acid in the alimentary canal.
(Solved)
b)State the role of emulsification in the digestion of fats in the alimentary canal.
b) What is the function of hydrochloric acid in the alimentary canal.
Date posted:
October 3, 2019
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Answers (1)
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The diagram below represents a cell organelle.
(Solved)
The diagram below represents a cell organelle.
i) Name the part labeled Y
ii) State the function of the part labeled X
Date posted:
October 3, 2019
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Answers (1)
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The diagram below is of a certain type of neurons
(Solved)
The diagram below is of a certain type of neurons
(a) Identify the type of neuron
(b) Give a reason for your answer in (a) above
(c) Give the functions of the parts labeled A, B, and D
Date posted:
October 3, 2019
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Answers (1)
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A solution of sugar cane was boiled with hydrochloric acid and sodium hydrogen carbonate was added to the solution, which was then boiled with benedicts...
(Solved)
A solution of sugar cane was boiled with hydrochloric acid and sodium hydrogen carbonate was added to the solution, which was then boiled with benedicts solution. An orange precipitate was formed.
(a) Why was the solution boiled with hydrochloric acid and then sodium hydrogen carbonate added in it
(b) To which class of carbohydrates does sugar cane belong?
(c) State the form in which carbohydrates are:
(i) Transported in animals
(ii) Transported in plants
Date posted:
October 3, 2019
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Answers (1)