i) Hypertonic solution; acc. Highly concentrated solution
(ii) Hypotonic solution; acc. More dilute solution
marto answered the question on September 30, 2019 at 11:14
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A student measured the length of a mitochondrion on a photomicrograph whose magnification was X 40000 and found it to be 1mm. Calculate the actual size of the mitochondrion.
Date posted: September 30, 2019. Answers (1)
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(i) Plants
(ii) Animals(Solved)
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(i) Plants
(ii) Animals
Date posted: September 30, 2019. Answers (1)
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The equation bellows shows a chemical reaction that takes place in green plants under certain conditions.
a) Name the
i) Process represented by the equation
ii) Substance represent by X
b) Other than the reactants, state two conditions necessary for this reaction to occur.
c) Name three types of cells in which the process occurs
Date posted: September 30, 2019. Answers (1)
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(a) (i) Which species has a better competitive ability?
(ii) Give a reason for your answer.
(b) Account for the shape of the curve for spicies A between;
(i) One year and three years
(ii) 4 years and eight years.
(c) A natural predator of species A was introduced into the ecosystem. With a reason, state how the
population of each species would be affected?
(d) State four other biotic factors of the ecosystem which affects organisms distribution in their habitat other than the one illustrated in the above graph.
(e) Name the instruments used to measure the following;
(i) Light intensity.
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(iii) Speed of wind.
(iv) Atmospheric pressure
Date posted: September 30, 2019. Answers (1)
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(i)
(ii)
(b) Wanjiru is blood group A.
(i) Name an antibody found in her blood plasma.
(ii) Name...(Solved)
(a) Name two substances transported in blood plasma.
(i)
(ii)
(b) Wanjiru is blood group A.
(i) Name an antibody found in her blood plasma.
(ii) Name an antigen found in her red blood cell.
(iii) Name the blood groups she can donate to
Blood groups-
(i)
(ii)
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Date posted: September 30, 2019. Answers (1)
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(a) Identify process X
(b) Name the state of the cell after undergoing process
(i) X.
(ii) Z .
(c) Name the substance which is found in parts labelled;
(i) P.
(ii) Y .
(d) Name parts labelled M and Q.
(e) Name the cell organelle which is usually referred to as 'cell’s kitchen'.
Date posted: September 30, 2019. Answers (1)
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(b) What was the role of potassium hydroxide?
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Date posted: September 30, 2019. Answers (1)
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a) Name the type and stage of cell division.
Type
Stage
(b) (i) Give one reason for your answer in (a) above
(ii) What is the significance of the process shown in the diagram above in relation to the
behavior of chromosomes?
(c) What is the general name of organs where the above process occurs?
(d) Name the part labeled;
C
F
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Date posted: September 30, 2019. Answers (1)
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(a) Name the groups of organism represented by J.
(b) Name the process represented by R,P,M and N.
(c) Name one process represented by T.
(d) (i) Name a structure in roots involved in process M.
(ii) State one adaptation of the structure named in d (i) above to its function
Date posted: September 30, 2019. Answers (1)
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b) State two importance of the above type of cell division
Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)