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State the functions of mammalian blood
Date posted:
October 4, 2017
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Give the reasons why pressure of blood is greater in the arteries than in the veins of mammals.
Date posted:
October 4, 2017
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State the ways in which the composition of blood in the pulmonary arterioles differs from that in the pulmonary venules
Date posted:
October 4, 2017
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Describe the structure and functions of the blood vessels
i. Arteries
ii. Cappilaries
iii. Veins
Date posted:
October 4, 2017
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Explain why blood leaving the lungs may not be fully oxygenated
Date posted:
October 4, 2017
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Explain how the mammalian heart is adapted to performing its functions
Date posted:
October 4, 2017
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Describe the structure and function of the mammalian heart
Date posted:
October 4, 2017
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Distinguish between single circulatory system and double circulatory system
Date posted:
October 4, 2017
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What are the advantages of the closed circulatory system over open circulatory system?
Date posted:
October 4, 2017
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List the components of animal transport systems
Date posted:
October 4, 2017
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Describe an experiment you would carry out in order to demonstrate that phloem transports manufactured food substances in a plant
a. Ringing Experiment
b. Use the radio-tracers
c. Collecting exudate from stylets of aphids
Date posted:
October 4, 2017
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Explain how aquatic and terrestrial plants are adapted to deal with problems of transpiration
a. Mesophytes
b.Xerophytes
c.Hydrophytes
Date posted:
October 4, 2017
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State the importance of transpiration to plants
Date posted:
October 4, 2017
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Name the sites through which transpiration takes place in a plant
Date posted:
October 4, 2017
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Name the transport structures of a flowering plant
Date posted:
October 4, 2017
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State the differences between the internal structure of a root and a stem.
Date posted:
October 4, 2017
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Describe the structure and function of root hair
Date posted:
October 4, 2017
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Explain the necessity of transport in plants and animals
Date posted:
October 4, 2017
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Define the term species
Date posted:
October 4, 2017
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How does a DNA molecule code for a protein. Describe the process completely.
Date posted:
October 4, 2017
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Describe the process of DNA replication
Date posted:
October 4, 2017
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Describe the structure of DNA.
Date posted:
October 4, 2017
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Name the organ that detects a change in body temperature
Date posted:
September 30, 2017
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What is respiration?
Date posted:
September 28, 2017
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Describe the economic importance of
(i) Fungi
(ii) Bacteria
Date posted:
September 28, 2017
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Name two causes of allergic reactions.
Date posted:
September 25, 2017
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Give one function of Iron as an element in human body and deficiency disease caused?
Date posted:
September 25, 2017
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State two functions of bile salts produced by liver.
Date posted:
September 25, 2017
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State two common reagents for testing for the presence of proteins in a food substance.
Date posted:
September 25, 2017
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What is natural selection?
Date posted:
September 25, 2017