a)i) A Mitochondrion;
ii) D Rough endoplasmic reticular;
b) Site for protein synthesis;
sharon kalunda answered the question on May 28, 2019 at 05:42
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An experiment was carried out to investigate transpiration and absorption of water in sunflower plants in their natural environment with adequate supply of water. The...
(Solved)
An experiment was carried out to investigate transpiration and absorption of water in sunflower plants in their natural environment with adequate supply of water. The amount of water was determined in two hour intervals. The results are shown in the table below.
(a) Using the same axes, plot graphs to show transpiration and absorption of water in grammes against time of the day.
(b) At what time of the day was the amount of water the same for transpiration and absorption.
(c) Account for the shape of the graph of
(i) Transpiration
(ii) Absorption
(d) What would happen to transpiration and absorption of water if the experiment was continued till 0050 hours.
(e) Name two factors that may affect transpiration and absorption at any given time.
(f) Explain how the factors you named in (e) above affect transpiration.
Date posted:
May 28, 2019
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Answers (1)
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A portion of a nucleic acid is shown below;
a) Name the nucleic acid to which the portion belongs. Give a reason.
b) Write down the...
(Solved)
A portion of a nucleic acid is shown below;
a) Name the nucleic acid to which the portion belongs. Give a reason.
b) Write down the sequence of bases of a complimentary strand to the one above.
Date posted:
May 28, 2019
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Answers (1)
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Name two renal diseases.
(Solved)
Name two renal diseases.
Date posted:
May 27, 2019
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Answers (1)
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The diagram below illustrate an experiment to demonstrate some aspects of respiration in a potted plant.
(a) Name and state the role of the chemical compound...
(Solved)
The diagram below illustrate an experiment to demonstrate some aspects of respiration in a potted plant.
(a) Name and state the role of the chemical compound labeled A
Chemical compound
Role played
(b) What aspect of respiration is being demonstrated?
(c) Name the reagents in set up B and D.
(d) What would be the results in set up B and D after the experiment has run for some time.
Set up B
Set up D
(e) State the importance of covering the bell jar in set up C with a black polythene bag.
(f) Why was it necessary to enclose the pot with a polythene bag.
Date posted:
May 27, 2019
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Answers (1)
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Explain why it is difficult for scientist to make a vaccine against plasmodium which causes malaria.
(Solved)
Explain why it is difficult for scientist to make a vaccine against plasmodium which causes malaria.
Date posted:
May 27, 2019
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Answers (1)
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Name the hormone involved in development of male secondary sexual characteristics.
(Solved)
Name the hormone involved in development of male secondary sexual characteristics.
Date posted:
May 27, 2019
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Answers (1)
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Name the hormone involved in Milk production
(Solved)
Name the hormone involved in Milk production
Date posted:
May 27, 2019
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Answers (1)
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State two adaptations of the oviduct in female reproductive system.
(Solved)
State two adaptations of the oviduct in female reproductive system.
Date posted:
May 27, 2019
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Answers (1)
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Explain why cell membrane is semi-permeable.
(Solved)
Explain why cell membrane is semi-permeable.
Date posted:
May 27, 2019
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Answers (1)
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Name two main mineral ions required for transmission of a nerve impulse
(Solved)
Name two main mineral ions required for transmission of a nerve impulse
Date posted:
May 27, 2019
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Answers (1)
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Name the cell organelles which would be abundant in
(a) Sperm cell
(b) Pancreas
(Solved)
Name the cell organelles which would be abundant in
(a) Sperm cell
(b) Pancreas
Date posted:
May 27, 2019
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Answers (1)
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State the importance of Salts glands in halophytes.
(Solved)
State the importance of Salts glands in halophytes.
Date posted:
May 27, 2019
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Answers (1)
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What is the importance of carriers in active transport.
(Solved)
What is the importance of carriers in active transport.
Date posted:
May 27, 2019
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Answers (1)
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The diagram below shows the structure of a monocotyledonous seed
(a) Name the parts B and D
(b) Name the parts that would stain blue black...
(Solved)
The diagram below shows the structure of a monocotyledonous seed
(a) Name the parts B and D
(b) Name the parts that would stain blue black with iodine solution.
Date posted:
May 27, 2019
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Answers (1)
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Define the following terms in reference to fish locomotion
(a) Pitching
(b) Rolling
(c) Yawing
(Solved)
Define the following terms in reference to fish locomotion
(a) Pitching
(b) Rolling
(c) Yawing
Date posted:
May 27, 2019
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Answers (1)
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Name a disadvantageous gene that is dominant
(Solved)
Name a disadvantageous gene that is dominant
Date posted:
May 27, 2019
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Answers (1)
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State three functions of adrenaline released when a person is faced with an emergency situation.
(Solved)
State three functions of adrenaline released when a person is faced with an emergency situation.
Date posted:
May 27, 2019
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Answers (1)
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Name the basic functional unit of a kidney.
(Solved)
Name the basic functional unit of a kidney.
Date posted:
May 27, 2019
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Answers (1)
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The figure below shows feet of various birds. Study the diagram and answer the questions that follow.
(i) Name the type of evolution represented by the...
(Solved)
The figure below shows feet of various birds. Study the diagram and answer the questions that follow.
(i) Name the type of evolution represented by the diagrams.
(ii) Using Darwin’s theory of evolution, explain how the feet of bird E would have evolved.
(iii) Explain how Larmack could have explained the evolution of feet of bird C.
Date posted:
May 27, 2019
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Answers (1)
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How are respiratory gases, oxygen and carbon (IV) oxide transported to and from tissues in mammals?
(Solved)
How are respiratory gases, oxygen and carbon (IV) oxide transported to and from tissues in mammals?
Date posted:
May 27, 2019
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Answers (1)