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Flashcards in Biological Functions of Proteins Deck (13)
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1

The functions of proteins are divided into three categories, name these categories

Structural proteins
Physiologically active proteins
Nutrient proteins

2

What is meant by the structural function of proteins?

These are used to build parts of the body

3

What is meant by the physiologically active functions of proteins

These assist with the normal functioning of the body

4

What is meant by the nutrient functions of proteins?

These play a nutritional role within the body

5

List the structural functions of proteins
(3)

Production of cell membranes, muscle issue and skin
Cell repair and replacement
Growth

6

List the physiologically active functions of proteins
(5)

Production of hormonal proteins
Production of enzymes
Production of antibodies
Production of blood proteins
Production of nucleoproteins

7

What are hormonal proteins?

This help to coordinate bodily activities such as the production of insulin

8

What are enzymes?

These speed up chemical reactions such as pepsin which speeds up the breakdown of proteins in food

9

What are antibodies?

Immunoglobulins
These defend the body from harmful substances such as viruses

10

What are blood proteins

These move molecules around the body such as haemoglobin which transports oxygen through the blood

11

What are nucleoproteins

DNA
These make up the heredity material in chromosomes

12

List the nutrient functions of proteins
(2)

Provide the body with essential amino acids
Excess can be used as a source of energy when carbohydrate and fat reserves are used

13

List the effects of protein deficiency
(5)

Retarded growth
Delayed healing of wounds
Susceptibility to disease and infection
Lack of energy
Kwashiorkor and Marasmus in severe cases