A balanced diet consists of all the food types in their right proportions; it includes
proteins,carbohydrates, minerals, lipids, water, vitamins and roughage;
Proteins; used for growth and repair of worn out tissues; provide energy incase of acute
shortage of carbohydrates/starvation; bind and transport specific molecules from one part of
the body to another;structural proteins support tissues in the body e.g. bone and cartilage
tissues; act as metabolic regulators such as enzymes and hormones;
Carbohydrates; used to produce energy/store energy;
Lipids produce energy; form of storage of energy; insulate the body; major structural
components of the cell membrane; when oxidised, it provides metabolic water;
Vitamins; defense against infections; form coenzymes which activate enzymes;
Water; a universal solvent; medium for chemical reactions; used as coolant because of its high
specific heat capacity; maintains the shape of cells; hydrolysis of many substances; transport
medium in the body;
Mineral salts; formation of teeth and bones; formation of hormones (e.g. thyroxine); formation
of blood; maintenance of osmotic pressure of body fluid; transmission of nerve impulses;
Roughage; makes food to be bulk; promotes peristalsis; and absorption of water in the large
intestines; induces mucus production;
Kavungya answered the question on May 13, 2021 at 13:03
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What is digestion?
(Solved)
What is digestion?
Date posted:
May 13, 2021
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Explain why the following conditions are necessary for photosynthesis
a. Carbon (IV) Oxide
b. Light
c. Chlorophyll
d. Suitable temperature and pH
e. Water
(Solved)
Explain why the following conditions are necessary for photosynthesis
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b. Light
c. Chlorophyll
d. Suitable temperature and pH
e. Water
Date posted:
May 13, 2021
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Answers (1)
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What are the differences and similarities between mitosis and meiosis?
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September 13, 2020
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Briefly describe the three distinct stages of interphase
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April 6, 2020
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Describe the structural difference between proinsulin and insulin
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April 5, 2020
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Describe insulin production by genetic engineering
Date posted:
April 5, 2020
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Describe the 4 hierarchical levels of protein structure
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Describe the 4 hierarchical levels of protein structure
Date posted:
April 5, 2020
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Describe how the mammalian body protects itself against infections.
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Describe how the mammalian body protects itself against infections.
Date posted:
February 11, 2020
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Explain the term assimilation in digestion process
(Solved)
Explain the term assimilation in digestion process.
The question is from the topic of nutrition in plants and animals, subtopic; digestion in animals
Date posted:
January 12, 2020
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Answers (1)
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Explain the term peristalsis and state the role of this process in excretion.
(Solved)
The question is from the topic of nutrition in plants and animals, subtopic;digestion in animals.
Date posted:
January 12, 2020
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Answers (1)
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Explain why the plant cells do not burst when placed in hypotonic solution while animal cells burst.
(Solved)
The question is from the topic of of cell physiology; subtopic; osmosis.
Date posted:
January 12, 2020
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Answers (1)
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Name the building blocks of polysaccharide molecules.
(Solved)
The question is from the topic of nutrition in plants and animals; subtopic; food test
Date posted:
January 12, 2020
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Answers (1)
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Explain how the substrate concentration affects the rate of enzyme reaction.
(Solved)
The question is from the topic of nutrition in plants and animals, subtopic; enzymes.
Date posted:
January 12, 2020
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Answers (1)
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Explain why enzymes Pepsin and Trypsin are produced in their inactive states as Pepsinogen and Trypsinogen respectively.
(Solved)
The question is from the topic of nutrition in plants and animals; subtopic digestion.
Date posted:
January 12, 2020
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Answers (1)
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Name two enzymes that work in acidic and in alkaline ph.
(Solved)
The question is from the topic of nutrition in plants and animals; subtopic digestion in animals.
Date posted:
January 12, 2020
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Explain the differences between the term; magnification and resolution as used in microscopy.
(Solved)
The question is from the topic of;the cell form one (uses of a microscope)
Date posted:
January 11, 2020
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Explain how temperature affects the rate of diffusion
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The question is from the topic of cell physiology; subtopic physiological processes~diffusion
Date posted:
January 11, 2020
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The question is from the topic of excretion and homeostasis; subtopic excretion
Date posted:
January 11, 2020
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Describe the role of the liver in the process of thermal regulation.
(Solved)
The question is from the topic of excretion and homeostasis, subtopic; thermal regulation.
Date posted:
January 11, 2020
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Describe the process of photolysis of water
(Solved)
Describe the process of photolysis of water.
The question is from the topic of nutrition in plants and animals; subtopic photosynthesis in plants.
Date posted:
January 11, 2020
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Answers (1)