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Topic 5 - ANIMAL NUTRITION - PART 1

Section A: Multiple Choice Questions [g marks]

Which of the following statements about fats is false?A They improve the flavour of food.B They can be stored in the body.C They give us energy.D They cannot be broken down by enzymes.

Which of the following is the main function of proteins in the body?A To make and repair cellsB To prevent ricketsC To provide energyD To help absorb certain vitamins

52,1.

r2.

Which food contains vitamin C?A Boiled eggs C Fresh fruitB Cooked meat D Fresh milk

e g. Which part of balanced diet is used to make new enzyme?\rACarbohydratesCProteinsB Fats D Water

zg. A potato stores energy mainly as

,4.

t t. Which one of the followingA CalciumB lodine

A Lactic acidB Protein

r 7. Why is it important to include fibre in the diet?A lt gives energy to keep the body warm.B lt helps food pass through the gut.C It increases growth in young children.D lt is easy to digest.

is most likely to benefit a person with too few red blood cells?C lronD Phosphorus

C StarchD Water

Topic 5 - Animal Nutrition - Exercise I Page I of5

The labelfrom a can of baked beans is shown below. Which substance in the beans helps foodpass quickly through the alimentary canal?

Content g per 100 gProtein

CarbohydrateTotalfat

Dietary fibreAdded sugarAdded salt

5.29.00.47.32.00.8

A carbohydrateB fat

C fibreD protein

9. The table shows the average daily energy needed for adult males and females doing differentactivities. Which conclusion can be made from this table?

Activity energy needed / kJMales Females

Watching TV I 7Light work 11 I

Heavy work 15 13Very heavy work 21 19

A All human activities need more energy than 7 kJB Males need more energy than females to do the same activityc The energy requirement depends only upon the person,s activityD The energy requirement depends onry upon the person's sex

Section B: Structured Questions1. (a) State 3 reasons why living organisms requires food. [3]

(b) Name the five groups of nutrients in food. For each group of nutrient, give an example of a commonfood which contains a large amount of that nutrient. [S]

v

1.

2.

3.

4.

5.

Topic 5 - Animal Nutrition - Exercise I Page 2 of5

(a) What important nutients can a human obtain from( i ) raw green vegetables?

( ii ) a glass of milk?

(b) What do you understand by the term deficiency disease? [1]

(c) Describe a named deficiency disease. (Define the named deficiency disease, what are the causes of thedisease and what are the solutions for the disease). [31

Define:

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Caused by:

Solutions:

3. Match each of the following, (a) to (0, with one of the terms in the box" [6]

carbohvdrates. fats. oroteins

(a)

(b)

(c)

(d)

(e)

(0

For building tissues

Found in alloils

Abundant in rice

A chain of glucose molecules

Needed to help absorb certain vitamins

Needed to make enzymes

4. Match each of the following, (a) to (f), with one of the terms in the box. [6]

vitamin G. vitamin D. calcium. iron

(a)

(b)

(c)

(d)

(e)

(0

Found in meat

Found in fruits

Can be made in the skin

Needed to help the blood to clot

Absence of this nutrient causes scurvy

Absence of this nutrient causes anaemia

Topic 5 - Animal Nutrition - Exercise I Page 3 ofS

5. Who needs more energy, [3]

(a) a discodancer or a newsreader?

(b) a fifteen-year-old girl or her grandfather?

(c) a male cler{r or a female clerk of the same age?

6. (a) Explain what is meant by balanced dief-l2l

(b) Study the list of eight foods. [3]

banana chickenpeanuts rice

eggtomato

orangeTuna fteh

7.

Choose one food from those listed above that would

(D increase the quanti$ of vitamin C in a diet,

(ii) increase the quantity of protein in a diet,

(iii) help a person suffering from constipation,

(a) The human diet sometimes includes butter.

(i) Name the main food substance (nutrient) in butter. [1]

(ii) State two uses of this nutrient in the body. [2]

1. \y

(b) Many people eat too much of this nutrient.

(i) What form of malnutrition does this cause?

(ii) Explain how too much of this nutrient in the diet may lead to death. [1]

11I

Topic 5 - Animal Nutrition * Exercise I Page 4 ofS

table shows the recommended daily requirements and the average body weight of an adult woman at differentof her life.

Age / years Daily energy requirements / kJ Body weight / kg

18 to 55 9240 55.055 to 75 I 610 53.0

During pregnancy 10 000 variable

(a) Suggest a reason why a woman aged over 55 needs less energy than a younger woman.

(b) Why does a woman have a different energy requirement when pregnant?

t1I

t1l

a

U)

Topic 5 - Animal Nutrition - Exercise 1 Page 5 of5