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Give two reasons why potato tubers become sweeter after boiling.
(Solved)
Give two reasons why potato tubers become sweeter after boiling.
Date posted:
May 23, 2019
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Answers (1)
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An experiment was set up to demonstrate the necessity of carbon (IV) oxide for
photosynthesis in a certain green plant as shown below. The plant was...
(Solved)
An experiment was set up to demonstrate the necessity of carbon (IV) oxide for
photosynthesis in a certain green plant as shown below. The plant was first kept
darkness for 48 hours before the experiment.
a), Why was the plant kept in darkness for 48 hours before the start of this experiment.
b), What was the role of sodium hydroxide?
ci)What was the results shown by the leaf in the flask when it was tested for presence of starch after
the set up was exposed to light for a day?.
ii), Give reasons for your answer in (c) I above
d. Suggest a control for this experiment.
e), Name other two limiting factors in this experiment.
Date posted:
May 22, 2019
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Answers (1)
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The diagram below shows some components of a light microscope.
a), Name the parts labeled
K –
M –
b), State the functions of
P –
Q –
c) A...
(Solved)
The diagram below shows some components of a light microscope.
a), Name the parts labeled
K –
M –
b), State the functions of
P –
Q –
c) A student was viewing a prepared slide of a plant cell under high power microscope.
The features of the cell were blurred. Which one of the labeled parts of the microscope
would the student use to obtain; A sharper outline of the features
Date posted:
May 22, 2019
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Answers (1)
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The diagram below shows a phenomenon which occurs during cell division.
a) Identify the stage of cell division in which this phenomenon occurs.
b) State the...
(Solved)
The diagram below shows a phenomenon which occurs during cell division.
a) Identify the stage of cell division in which this phenomenon occurs.
b) State the importance of the phenomenon taking place in the part labeled B.
Date posted:
May 22, 2019
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Answers (1)
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The diagram below represents a transverse section of a plant part. Study it and answer the questions that
follow.
a)Name the class in which the plant belongs.
b)...
(Solved)
The diagram below represents a transverse section of a plant part. Study it and answer the questions that
follow.
a)Name the class in which the plant belongs.
b) Give a reason for answer (a) above.
c) State one adaptation for the structures labeled X to their functions.
Date posted:
May 22, 2019
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Answers (1)
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What are the names of modified leaves enclosing bougainvillea flowers whose function is to
attract insect pollinators?
(Solved)
What are the names of modified leaves enclosing bougainvillea flowers whose function is to
attract insect pollinators?
Date posted:
May 22, 2019
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Answers (1)
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Equal amounts of crushed Irish potato were placed in equal volumes of hydrogen peroxide solution
at indicated pH. The volume of the gas produced was measured...
(Solved)
Equal amounts of crushed Irish potato were placed in equal volumes of hydrogen peroxide solution
at indicated pH. The volume of the gas produced was measured and recorded as shown in the table
below.
(a) Name the gas that was produced.
(b)Account for the difference in the volume of the gas produced in pH 4.0 and pH 9.0
Date posted:
May 22, 2019
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Answers (1)
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Name the branch of Biology that involves the study of Organisms for the sake of classifying them.
(Solved)
Name the branch of Biology that involves the study of Organisms for the sake of classifying them.
Date posted:
May 22, 2019
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Answers (1)
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Explain the reason why growing grass dries when salt is sprinkled on it?
(Solved)
Explain the reason why growing grass dries when salt is sprinkled on it?
Date posted:
May 4, 2019
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Answers (1)
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Name two chemicals used to immobilize highly mobile animals during collection of small animals
(Solved)
Name two chemicals used to immobilize highly mobile animals during collection of small animals
Date posted:
April 28, 2019
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Answers (1)
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List down the three theories that explain the opening and closing of stomata
(Solved)
List down the three theories that explain the opening and closing of stomata.
Date posted:
April 26, 2019
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Answers (1)
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State two functions of mucus produced along the alimentary canal
(Solved)
State two functions of mucus produced along the alimentary canal.
Date posted:
April 26, 2019
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Answers (1)
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A certain animal has no incisors no canine 6 premolars and 6 molars in its upper jaw.Ln the...
(Solved)
A certain animal has no incisors no canine 6 premolars and 6 molars in its upper jaw. In the lower jaw there are 6 incisors 2 canine 6 premolars and 6 molars. Write its dental formula.
Date posted:
April 10, 2019
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Answers (1)
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How does the human eye obtain nutrients
(Solved)
How does the human eye obtain nutrients
Date posted:
April 1, 2019
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Answers (1)
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Name the features that increases the surface area of the small intestines.
(Solved)
Name the features that increases the surface area of the small intestines.
Date posted:
April 1, 2019
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Answers (1)
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The diagram below shows a vertical section through a flower.
(a) Name the parts marked X and Y.
(b) Suggest the agent of pollination for the flower.
(c)...
(Solved)
The diagram below shows a vertical section through a flower.
(a) Name the parts marked X and Y.
(b) Suggest the agent of pollination for the flower.
(c) Give a reason for your answer in (b) above.
Date posted:
April 1, 2019
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Answers (1)
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Name three gaseous constituents involved in gaseous exchange in plants
(Solved)
Name three gaseous constituents involved in gaseous exchange in plants.
Date posted:
March 26, 2019
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Answers (1)
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Explain why water logging of the soil may lead to death in plants
(Solved)
Explain why water logging of the soil may lead to death in plants.
Date posted:
March 26, 2019
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Answers (1)
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The diagram below shows part of plant tissue.
(Solved)
The diagram below shows part of plant tissue.
(i) Name the cell labelled X and part labelled W.
(ii) State two adaptations of cell labelled X to its functions.
Date posted:
March 22, 2019
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Answers (1)
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If the nerve supply to the heart of a mammal is servered, the rhythmic heart movement will still go on and the heart continues to...
(Solved)
If the nerve supply to the heart of a mammal is servered, the rhythmic heart movement will still go on and the heart continues to beat. Explain this observation
Date posted:
March 22, 2019
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Answers (1)