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Describe starch-sugar inter-conversion theory of opening and closing of the stomata
Date posted:
December 4, 2017
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Name three types of neurons
Date posted:
December 4, 2017
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Name the three physiological processes
Date posted:
December 4, 2017
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Explain three functions of diffusion in animals.
Date posted:
December 4, 2017
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A student placed a plant cell in distilled water. Explain what happens.
Date posted:
December 4, 2017
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Name 5 scientific skills obtained from learning biology.
Date posted:
December 4, 2017
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Define the following terms:
(i) Cell physiology
(ii) Plasmolysis
Date posted:
December 4, 2017
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State and explain the two main branches of biology
Date posted:
December 4, 2017
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Give the functions of the following parts of the microscope:
(i) Coarse adjustment knob.
(ii) Arm
(iii) Mirror
Date posted:
December 4, 2017
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Give the functions of each of the following cell organelles:
(i) Lysosomes
(ii) Nucleus
(iii) Mitochondrion
Date posted:
December 4, 2017
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The cell membrane is sensitive to changes in temperature and pH. Explain.
Date posted:
December 4, 2017
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Define the term active transport and briefly explain three roles of active transport in animals.
Date posted:
December 4, 2017
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A red blood cell is placed in distilled water. Explain what happens to the red blood cell.
Date posted:
December 4, 2017
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Differentiate between haemolysis and crenation.
Date posted:
December 4, 2017
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Differentiate between osmotic pressure and osmotic potential
Date posted:
December 4, 2017
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Explain happens when you place a visking tubing half filled with sugar solution immersed in a beaker with distilled water.
Date posted:
December 4, 2017
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Osmosis is referred to as a special type of diffusion. Explain
Date posted:
December 4, 2017
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Briefly explain why diffusion is not sufficient for transport purposes in human beings.
Date posted:
December 4, 2017
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State and explain any two roles of diffusion in plants.
Date posted:
December 4, 2017
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Diffusion is one of the physiological processes in both plants and animals. Define diffusion
Date posted:
December 4, 2017
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Why do we say the cell membrane is semipermeable
Date posted:
December 4, 2017
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The cell membrane forms the outer covering of animal cells. Give its properties.
Date posted:
December 4, 2017
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Differentiate between an organ and organ system giving an example for each
Date posted:
December 4, 2017
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The following are tissues found in plants, briefly explain their functions:
(i) Epidermal tissue
(ii) Parenchyma tissue
Date posted:
December 4, 2017
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Differentiate between a cell and a tissue.
Date posted:
December 4, 2017
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Define cell specialization and give an example.
Date posted:
December 4, 2017
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In the preparation of temporary slides, the following measures are taken into consideration state their importance:
(i) Using iodine
(ii) Adding a drop of water to the specimen.
(iii) Using a thin piece of the specimen
Date posted:
December 4, 2017
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Give four differences between a plant cell and an animal cell
Date posted:
December 4, 2017
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Name two organelles found in the plant cells only.
Date posted:
December 4, 2017
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Name the cell organelles that are found in large amounts in muscle cells.
Date posted:
December 4, 2017