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For maximum transpiration/get rid of excess water.
To allow for gaseous exchange.
Belan answered the question on March 6, 2019 at 11:28
- (a)(i)State the function of companion cells.
(ii)Explain why companion cells are located next to the sieve tubes.(Solved)
(a)(i)State the function of companion cells.
(ii)Explain why companion cells are located next to the sieve tubes.
Date posted: March 6, 2019. Answers (1)
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(a)Tissue.
(b)Organ system.(Solved)
Define the following terms:
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Date posted: March 6, 2019. Answers (1)
- State the method of dispersal for each of the following fruits:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)wind.
(ii)Censor mechanism.(Solved)
(a)State the method of dispersal for each of the following:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for each of the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)Wind.
(ii)Censor mechanism.
Date posted: March 2, 2019. Answers (1)
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-2cm³of egg white suspension was placed in each test tubes labelled A,B,C and D.
-Three drops of hydrochloric acid(HCI)was added...(Solved)
An experiment was carried out as follows:
-2cm³of egg white suspension was placed in each of the test tubes labelled A,B,C and D.
-Three drops of hydrochloric acid (HCI) was added to each of test tubes labelled B,C and D.
-1cm³pepsin was added to each of test tubes labelled A, and C 1cm³ boiled pepsin to test tube labelled D.
All the test tubes were placed in a water bath at 35°C for 15 minutes.
(a)State the observations made in each of the test tubes labelled A,B,C and D.
(b)Account for the observations made in(a) above for test tubes labelled A,B,C and D.
(c)What was the role of HCI?
Date posted: March 2, 2019. Answers (1)
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Date posted: March 2, 2019. Answers (1)
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Date posted: March 2, 2019. Answers (1)
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(i)Lysosomes.
(ii)Ribosome.(Solved)
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Date posted: March 2, 2019. Answers (1)
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(ii)How is the disease prevented?
Date posted: March 2, 2019. Answers (1)
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(i)Peristalsis.
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Define the following terms:
(i)Peristalsis.
(ii)Emulsification.
Date posted: March 2, 2019. Answers (1)
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Date posted: March 2, 2019. Answers (1)
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Date posted: March 2, 2019. Answers (1)
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Date posted: March 2, 2019. Answers (1)
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