(a) The bacteria ad exhausted the available food materials and they died;
(b) They multiply very fast as they feed on the substances; release toxic waste on food then die
there causing food spoilage
(c) fungi;
(d)
– Speed up recycling of matter in the ecosystem;
- Breaks down /decompose dead complex organic matter
marto answered the question on October 4, 2019 at 08:35
- Form one students from Inungo school arranged their apparatus as shown below, to investigate a certain phenomenon. The set up was placed in light.(Solved)
Form one students from Inungo school arranged their apparatus as shown below, to investigate a certain phenomenon. The set up was placed in light.
(a) State the likely aim of the set up
(b) State the role of the syringe in the set-up above
(c)
(i) Name gas X
(ii) Write an equation to show how gas X was formed in the set-up
(d) State three factors that increase the rate of enzyme activity
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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The diagram below shows the effect of varying light intensity on the exchange of carbon IV oxide between the leaves of a green plant and the atmosphere.
a) What is the name given to the point marked x?
b)
i) With reference to carbon IV oxide exchange state what happens at point x.
ii) Explain how the effect observed at point x occurs.
c) Explain why there is a net uptake of carbon IV oxide at light intensity above x.
d) What would happen to the plant if light intensity falling on it were maintained at x throughout?
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Date posted: October 4, 2019. Answers (1)
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The chart below shows the relationship between concentration of CO2 around the plant and the rate of photosynthesis.
(a) Account for the rate of photosynthesis between D-E
(b) Account for the rate of photosynthesis between F-G
(c) Briefly describe the reactions during the light stage of photosynthesis
Date posted: October 4, 2019. Answers (1)
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a) Identify the structure labeled A and B
b) State one function of A and B
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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(a) Explain what happens between A and B
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Date posted: October 4, 2019. Answers (1)
- The diagram below shows a leaf of a growing plant partly covered with aluminium foil.
The plant was placed in the sun from morning to midday...(Solved)
The diagram below shows a leaf of a growing plant partly covered with aluminium foil.
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(a) What was the aim of the experiment?
(b) State the observation made when the leaf was tested for starch.
Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. 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 the results obtained.
Account for the results obtained at:
(i) Midnight.
(ii) At 12.00 noon
Date posted: October 4, 2019. Answers (1)
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Date posted: October 4, 2019. Answers (1)
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(ii) Give a reason for your answer in (a) (i) above
Date posted: October 4, 2019. Answers (1)
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(b) How is schistosome adapted to its parasitic mode of life?(Solved)
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Date posted: October 4, 2019. Answers (1)
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(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. Answers (1)