Chapter 6 (page 30)

Question 1

Complex nitrogenous substances and are the main building material of cells.

Answer 1

Proteins

Question 2

What products has the highest quantity of protein?

Answer 2

animal products

Question 3

_____________ are proteins that meet all the body’s AA requirements for tissue maintenance and growth. They are important in the structure materials of the body (keratin of skin).

Answer 3

Complete proteins

Question 4

The amount of protein needed in the body depends on ____ , ____ , _________ and ____________ .

Answer 4

age
size
metabolic rate
nitrogen balance

Question 5

Proteins are assembled from _______ of AA.

Answer 5

20 kinds

Question 6

The statements are true, Except:

1. If proteins can not be made, a serious health threat may result.
2. AA can be made from compounds present in the body.
3. Only 40% of the proper AA are found in the body. The rest must be supplied by diet.

Answer 6

Except: number 3

Only half of the proper AA are found in the body. The rest must be supplied by diet.

Question 7

_____________ - AA that must be consumed in diet.

Answer 7

Essential Amino Acids

Question 8

Nonessential AA is made by:

Answer 8

Made by body (not required in diet).

Question 9

__________ - Organic molecules needed in small quantities for normal metabolism. They help enzymes work properly.

Answer 9

Vitamins

Question 10

What are the fat - soluble vitamins?

Answer 10

vitamins A, D, E and K

Question 11

The body can not store water - soluble ___________ that must be continually obtained in the diet.

Answer 11

vitamins B and C

Question 12

What is Minerals?

Answer 12

Inorganic elements or salts found naturally in the earth. They attach to enzymes to help them work.

Question 13

Why mineral are required?

Answer 13

Minerals are required for proper nerve conduction and muscle fibre contraction

Question 14

Three types of metabolism:

Answer 14

A) Carbohydrate metabolism
B) Fat metabolism
C) Protein metabolism