-Auxin is manufactured by the shoot tip; and translocated to other part of plant where it stimulate growth;
- High auxin concentration stimulate growth on the shoot; but inhibit growth of the growth;
- Movement of auxin is influenced by gravity; The lower part of a plant has high auxin concentration than the upper part;
- Part of the shoot with high auxin concentrating grows more; than the part with low auxin concentration; which make the shoot to curve upward; this is negative geotropism ;
- High auxin concentration in the root inhibit growth while low auxin concentration stimulate root growth; part with low auxin concentration grows more than the part with the high auxin concentration and hence are root curves downwards; This is positive geotropism;
sharon kalunda answered the question on May 29, 2019 at 06:57
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Describe the characteristics and functions of the three types of muscle found in mammalian body.
(Solved)
Describe the characteristics and functions of the three types of muscle found in mammalian body.
Date posted:
May 29, 2019
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Answers (1)
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In an ecological study a grass hopper population and that of crows was estimated in a certain grass land area over a period of
one year....
(Solved)
In an ecological study a grass hopper population and that of crows was estimated in a certain grass land area over a period of
one year. The results are as shown in the table below.
a) i) What is the relationship between the rainfall and grasshoppers population?
ii) Account for the relationship stated in a (i) above
b) Explain the relationship between the grasshopper and the crows population.
c) If the data was used in the construction of pyramid of numbers, what would be the trophic level of:
i) Grasshopper
ii) Crows
iii) The grass in the study area
d) If the area studied was on a square kilometer, state
i) One method that could have been used to estimate the grasshopper population.
ii) One method that could have been used to estimate the crows population.
e) Suggest what would happen if a predator for grasshoppers entered the study area.
Date posted:
May 29, 2019
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Give the function of the oesophagus in digestion.
(Solved)
Give the function of the oesophagus in digestion.
Date posted:
May 29, 2019
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Name an enzyme that is found in the saliva of man and state its function.
(Solved)
Name an enzyme that is found in the saliva of man and state its function.
Date posted:
May 29, 2019
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Answers (1)
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State two mechanism that hinders self pollination in flowering plants.
(Solved)
State two mechanism that hinders self pollination in flowering plants.
Date posted:
May 29, 2019
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(Solved)
Define Turgidity.
Date posted:
May 29, 2019
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The diagram below represents a set-up to investigate a certain physiological process.
After some time the level of sugar solution was observed to have risen.
a) What...
(Solved)
The diagram below represents a set-up to investigate a certain physiological process.
After some time the level of sugar solution was observed to have risen.
a) What physiological process was being investigated.
b) Account for the rise in the level of sugar solution.
c) Suggest the result that would be observed if the experiment was repeated using a piece of boiled potato.
Date posted:
May 29, 2019
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Answers (1)
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Name one defect of non-disfunction chromosomal mutation.
(Solved)
Name one defect of non-disfunction chromosomal mutation.
Date posted:
May 29, 2019
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Answers (1)
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The diagram below represents a gill of a bony fish . Study it and answer the questions that follow.
Give the function of each of the...
(Solved)
The diagram below represents a gill of a bony fish . Study it and answer the questions that follow.
Give the function of each of the lablled parts A, B and C
Date posted:
May 29, 2019
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Answers (1)
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State two ways through which a baby may attain natural immunity.
(Solved)
State two ways through which a baby may attain natural immunity.
Date posted:
May 29, 2019
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Answers (1)
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Name the cell organelles that Selectively control movement of substances in and out of the cell.
(Solved)
Name the cell organelles that Selectively control movement of substances in and out of the cell.
Date posted:
May 29, 2019
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Answers (1)
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Name the cell organelles that Contain chromosomes.
(Solved)
Name the cell organelles that Contain chromosomes.
Date posted:
May 29, 2019
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State two distinguishing features of members of the phylum chordata.
(Solved)
State two distinguishing features of members of the phylum chordata.
Date posted:
May 29, 2019
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Answers (1)
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A form three on a field trip collected termites and brought them to the laboratory. State two characteristics features thatwould enable her to group them...
(Solved)
A form three on a field trip collected termites and brought them to the laboratory. State two characteristics features that would enable her to group them under phylum arthropoda.
Date posted:
May 29, 2019
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Answers (1)
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Give a reason why ammonia is converted to urea.
(Solved)
Give a reason why ammonia is converted to urea.
Date posted:
May 29, 2019
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The diagram below shows half a flower.
(a) Identify the structure that develop into a fruit wall after fertilization.
(b) Name the structure labelled B and...
(Solved)
The diagram below shows half a flower.
(a) Identify the structure that develop into a fruit wall after fertilization.
(b) Name the structure labelled B and F.
(c) What is the function of the structure labelled G?
Date posted:
May 28, 2019
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Answers (1)
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How do the etiolated plant differ from the normal plant?
(Solved)
How do the etiolated plant differ from the normal plant?
Date posted:
May 28, 2019
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Name the part of an organelle where the Photolysis of water occur;
(Solved)
Name the part of an organelle where the Photolysis of water occur;
Date posted:
May 28, 2019
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Answers (1)
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Name the part of an organelle where the Carbon IV oxide fixation occur;
(Solved)
Name the part of an organelle where the Carbon IV oxide fixation occur;
Date posted:
May 28, 2019
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Answers (1)
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Explain why Blood group AB is a universal recipient.
(Solved)
Explain why Blood group AB is a universal recipient.
Date posted:
May 28, 2019
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Answers (1)