a) Measure rate of transpiration;
b)
-Assemble apparatus under water;
- Apply vasectomy between cork shoot contacts;
- Open the reservoir tap;
c)
i) The air bubble will not move
ii) Water droplets will be seen in he polythene;
iii) Air bubble will move faster
marto answered the question on October 4, 2019 at 09:56
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The flow chart below shows a blood transfusion pathway.
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Date posted: October 4, 2019. Answers (1)
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(b) What is the significance of xylem vessels being dead?(Solved)
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Date posted: October 4, 2019. Answers (1)
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(a) Name the part labeled A.
(b) Name the process illustrated in the diagram above.
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Date posted: October 4, 2019. Answers (1)
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The diagram shows a section through a plant organ.
(a)
(i) Name the class of the plant from which the section was obtained belong.
(ii) Give a reason for your answer in (a)(i) above
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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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(a) What process was being investigated above?
(b) What observation was made if;
(i) The experiment was left in strong wind for one hour?
(ii) All the leaves were removed from the plant?
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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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b)Name the tissue that is removed when the bark of a...(Solved)
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The shoot was exposed to different light intensities and the rate of photosynthesis estimated by counting the number of bubbles of gas leaving the shoot in a given time. the results are given below;
a) Plot these data on apiece of graph paper provided
b) At what light intensity did the shoot produce ;
i) 18 bubbles per minute
ii) 25 bubbles per minute
c) Give two better ways of measuring the rate of photosynthesis than counting bubbles
d) What is the role of light intensity in photosynthesis
e) Account for the expected results of doing this experience at the following temperature;
i) 4ºC
ii) 34ºC
iii) 60ºC
f) Other than light intensity and temperature, name other factors that affect the rate of
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Date posted: October 4, 2019. Answers (1)
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The table below shows the results of an experiment carried out to determine the rate of photosynthesis at different light intensities and varying Carbon (IV) oxide concentrations. The rate was determined by counting the number of bubbles per minute. The temperature was kept constant.
a) On a graph paper provided, draw a graph for each of the light intensities. All the three graphs should be plotted on the same axis (rate of photosynthesis on vertical axis and carbon (IV) oxide concentration on horizontal axis
b) What is the effect of an increase in carbon (IV) oxide concentrations and light intensities
c) Briefly explain how aquatic green plants meet light intensities and carbon (IV) oxide
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d) Using the data provided in the table state two factors required by the green plants for food
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Date posted: October 4, 2019. Answers (1)
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a) Why was there no colony on the fourteenth day?
b) Explain how bacteria cause spoilage of stored food in warm moist conditions.
c) Name other organisms which also cause food spoilage.
d) State their economic importance to nature.
Date posted: October 4, 2019. Answers (1)
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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)