1. They are thin walls and therefore allowing gases to diffuse in and out quickly
2. They are elastic i.e. can expand and contract depending on the volume of blood
3. They are numerous thus increasing their surface area through which diffusion takes place
4. They are located adjacent to the cells and thus reducing the diffusion path
joseph kieti answered the question on December 8, 2017 at 05:11
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Name the functions of the following parts of a tooth: (i) Enamel (ii) Pulp cavity (iii) Cement
(Solved)
Name the functions of the following parts of a tooth:
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Date posted:
December 6, 2017
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Answers (1)
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(Solved)
How are carnivores adapted to their type of nutrition? Give four ways.
Date posted:
December 6, 2017
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Answers (1)
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Symbiosis is one of the heterotrophic modes of nutrition. Define the term symbiosis.
Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Define the term herbivores.
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Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Name the four types of teeth and their functions.
Date posted:
December 6, 2017
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Answers (1)
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Define the following terms:
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Date posted:
December 6, 2017
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Answers (1)
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(Solved)
State and explain any three heterotrophic modes of nutrition.
Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Give the function of enzyme catalase in living tissues.
Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Give two functions of enzymes.
Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Enzyme co-factors and co-enzymes is one of the factors affecting the rate of enzyme controlled reactions. Explain how.
Date posted:
December 6, 2017
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Answers (1)
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Show how the following factors affect the rate of enzyme controlled reactions. (i) Specificity (ii) Temperature (iii) pH
(Solved)
Show how the following factors affect the rate of enzyme controlled reactions.
(i) Specificity
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Date posted:
December 6, 2017
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Answers (1)
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(Solved)
State and briefly explain two methods used in naming enzymes.
Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Briefly explain four properties of enzymes.
Date posted:
December 6, 2017
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Answers (1)
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(Solved)
Define the term enzymes.
State and define the two types of enzymes.
Date posted:
December 6, 2017
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Answers (1)
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Amino acids are joined together to form complex protein molecules. Name the process by which the complex proteins are formed.
(Solved)
Amino acids are joined together to form complex protein molecules. Name the process by which the complex proteins are formed.
Date posted:
December 5, 2017
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Answers (1)
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(Solved)
Proteins have various functions in the body. Explain three of those functions.
Date posted:
December 5, 2017
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Answers (1)
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State three properties of amino acids.
(Solved)
State three properties of amino acids.
Date posted:
December 5, 2017
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Answers (1)
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(Solved)
Name the building units of proteins
Date posted:
December 5, 2017
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Answers (1)
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(Solved)
Name the two main methods used in the test for presence of lipids.
Date posted:
December 5, 2017
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Answers (1)
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Describe the emulsion test used in testing for lipids.
(Solved)
Describe the emulsion test used in testing for lipids.
Date posted:
December 5, 2017
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Answers (1)