a) i) P - Will bend towards light;
R Continue growing upright;
ii) P- Light causes lateral migration of auxins to dark side of the seedling causing faster growth on dark side than
lightside hence curvature;
R - Mica sheet reflect light hence uniform distribution of Indole-3-acetic acid in the seedling;
b) i) Sprouting of lateral buds into branches;
ii) Apical shoot is source of Indole-3-acetic acid; Low Indole-3-acetic acid concentration stimulate lateral bud to sprout out;
c) Increased yields;
sharon kalunda answered the question on May 24, 2019 at 12:39
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When pure breeding red flowered plants were crossed with pure breeding white flowered plant, the offspring were all pink
flowered.
a) Using letter R to represent the...
(Solved)
When pure breeding red flowered plants were crossed with pure breeding white flowered plant, the offspring were all pink
flowered.
a) Using letter R to represent the gene for red coloured flower plants and W for the gene for the white flowered plants.
Workout the genotypic ratio of F2 generation.
b) State the phenotypic ratio of F2 generation.
c) i) What is the name given to a condition when two alleles in heterozygon state contribute equally to the phenotype of an
organizations.
ii) Give an example of a trait in human beings where the above condition in c(i) above express itself.
Date posted:
May 24, 2019
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Answers (1)
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A student setup the following apparatus to investigate a physiological process in animals. The set-ups were then left for one
hour.
a) What was the aim of...
(Solved)
A student setup the following apparatus to investigate a physiological process in animals. The set-ups were then left for one
hour.
a) What was the aim of the experiment?
b) i) What observation was made in:
Tube A
Tube B
ii) Account for the change that occurs in Tube A.
c) State the role of Tube B in the above experiment.
d) Explain what would be observed if a green leaf was introduced in Tube A in place of the cockroach then set-up exposed to
light for one hour.
Date posted:
May 24, 2019
.
Answers (1)
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(Solved)
How is a sugarcane flower adapted to wind pollination?
Date posted:
May 24, 2019
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Answers (1)
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What is polysepalous flower.
Date posted:
May 24, 2019
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Answers (1)
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(Solved)
Describe the physiological process that help in regulation of the body temperature in man on a hot day.
Date posted:
May 24, 2019
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Answers (1)
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Differentiate between photosynthesis and respiration.
(Solved)
Differentiate between photosynthesis and respiration.
Date posted:
May 24, 2019
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Answers (1)
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Identify the following apparatus and state it functions.
(Solved)
Identify the following apparatus and state it functions.
i) Name
ii) Function
Date posted:
May 24, 2019
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Answers (1)
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Name the type of muscle found in the gut.
(Solved)
Name the type of muscle found in the gut.
Date posted:
May 24, 2019
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Answers (1)
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What do you understand by the term synapse?
(Solved)
What do you understand by the term synapse?
Date posted:
May 24, 2019
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Answers (1)
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(Solved)
Give a difference between blind spot and the Fovea centralis.
Date posted:
May 24, 2019
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Answers (1)
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State the role of the iris in the human eye.
(Solved)
State the role of the iris in the human eye.
Date posted:
May 24, 2019
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Answers (1)
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The diagram below represents a section through a human tooth.
a) Name the type of tooth shown.
b) Give a reason for your answer in (a) above....
(Solved)
The diagram below represents a section through a human tooth.
a) Name the type of tooth shown.
b) Give a reason for your answer in (a) above.
c) List and state the functions of two structures found in the part labelled K.
Date posted:
May 24, 2019
.
Answers (1)
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State the function of pneumatophores.
(Solved)
State the function of pneumatophores.
Date posted:
May 24, 2019
.
Answers (1)
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Name the tissue in the stem and leaves of hydrophytes that allows them to store air for gaseous exchange.
(Solved)
Name the tissue in the stem and leaves of hydrophytes that allows them to store air for gaseous exchange..
Date posted:
May 24, 2019
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Answers (1)
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State the role of ATP molecule during active transport across the cell membrane of the plant root hair.
(Solved)
State the role of ATP molecule during active transport across the cell membrane of the plant root hair.
Date posted:
May 24, 2019
.
Answers (1)
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Name the type of circulatory system found in the phylum Arthropoda.
(Solved)
Name the type of circulatory system found in the phylum Arthropoda.
Date posted:
May 24, 2019
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Answers (1)
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The reaction represented by the equation below occurs in the body.
a) Name enzyme Y
b) Name an organ in the body where the reaction occurs.
(Solved)
The reaction represented by the equation below occurs in the body.
a) Name enzyme Y
b) Name an organ in the body where the reaction occurs.
Date posted:
May 24, 2019
.
Answers (1)
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Describe the process of excretion in the kidney.
(Solved)
Describe the process of excretion in the kidney.
Date posted:
May 24, 2019
.
Answers (1)
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Briefly explain how any three factors affect population growth.
(Solved)
Briefly explain how any three factors affect population growth.
Date posted:
May 24, 2019
.
Answers (1)
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The figure below shows a section through a leaf. A leaf is designed for photosynthesis and this process provides a supply of simple sugars for...
(Solved)
The figure below shows a section through a leaf. A leaf is designed for photosynthesis and this process provides a supply of simple sugars for a plant.
(a) State the adaptation of the chloroplasts to photosynthesis.
(b) Name a mineral ion in chloroplast.
(c) (i) Name the tissues that translocates sugar from the leaves to other parts of the plants.
(ii) How is the tissue named in c(i) above adapted to its function?
(d) Write a word equation for the process of photosynthesis.
Date posted:
May 24, 2019
.
Answers (1)