Macronutrients - Proteins

Question 1

What are proteins?

Answer 1

Important structural molecules.

Question 2

What are proteins involved in?

Answer 2

In all metabolic processes.

Question 3

What do proteins generate?

Answer 3

Motion

Question 4

What are some proteins?

Answer 4

Hormones

Question 5

What are hormones?

Answer 5

Chemical messengers released by cells that influence other cells to act.

Question 6

What are some other functions of proteins? (7 points)

Answer 6

• Control of chemical reactions.
• Movement
• Transporting oxygen.
• Structure
• Hormones (chemical messengers)
• Defense
• Source of Energy

Question 7

What is an example of the protein function of controlling chemical reactions?

Answer 7

Digestive Chemicals

Question 8

What is an example of the protein function of movement?

Answer 8

Myosin, in muscle cells.

Question 9

What is an example of the protein function of transporting oxygen?

Answer 9

Hemoglobin, in red blood cells.

Question 10

What is an example of the protein function of structure?

Answer 10

Collagen, in muscles and connective tissue; keratin in hair and nails.

Question 11

What is an example of the protein function of hormones (chemical messengers)?

Answer 11

Human growth hormone.

Question 12

What is an example of the protein function of defence?

Answer 12

Antibodies produced by the immune system.

Question 13

What is an example of the protein function of being a source of energy?

Answer 13

Excess proteins from diet.

Question 14

What are proteins made of?

Answer 14

Long chains of amino acids.

Question 15

What are proteins highly variable in?

Answer 15

Size and shape

Question 16

Different what are used to build proteins and how many are there?

Answer 16

20 different amino acids are used to build proteins.

Question 17

How many amino acids can be made by the body? How many amino acids have to be obtained from the diet?

Answer 17

12 can be made by the body; the other 8 must be obtained from the diet (essential amino acids).

Question 18

What are some food sources of protein? (8 points)

Answer 18

• Meat
• Eggs
• Fish
• Cheese
• Beans
• Lentils
• Seeds
• Nuts

Question 19

What do animal proteins contain?

Answer 19

All 8 essential acids.

Question 20

What do plant proteins lack?

Answer 20

At least one one of those 8 essential acids.

Question 21

What does animal muscle have a higher concentration of compared to plants?

Answer 21

Proteins

Question 22

What does 60 g of protein (meat) equal?

Answer 22

15 cups of raw vegetables.

Question 23

What forms a small portion of energy in the diet?

Answer 23

Proteins

Question 24

Why do proteins form a small portion of energy in the diet?

Answer 24

Because they have so many important functions.

Question 25

What percentage of your average energy requirements should come from protein?

Answer 25

Approximately 10%-30% of your average energy requirements should come from protein.