chapter 1 - protein

Question 1

how many types of amino acids are there

Answer 1

20

Question 2

how many essential amino acids are there

Answer 2

9

Question 3

how many non-essential amino acids are there

Answer 3

11

Question 4

name 2 examples of essential amino acids

Answer 4

lysine

valine

Question 5

name 2 examples of non-essential amino acids

Answer 5

alanine

proline

Question 6

body able/ unable to produce essential amino acids

Answer 6

unable

Question 7

where can we obtain essential amino acid

Answer 7

from the food

Question 8

body able/ unable to produce non-essential amino acids

Answer 8

able

Question 9

define high biological value

Answer 9

contains all the essential amino acids required by the body in the right proportion

Question 10

define low biological value

Answer 10

lacks one or more amino acids

Question 11

define complementary proteins

Answer 11

combining 2 or more low biological values such that the body obtains all the essential amino acids

Question 12

which biological value (high and low) is animal and plant source

Answer 12

HBV - animal source

LBV - plant source

Question 13

3 food sources of LBV

Answer 13

almond 
sunflower seeds
green peas 
red kidney beans 
cashew nuts

Question 14

3 food sources of HBV

Answer 14

beef
quail eggs
low-fat milk 
tilapia 
chicken

Question 15

chemical elements of protein

Answer 15

carbon, hydrogen, nitrogen and oxygen

Question 16

state the 7 functions of protein

Answer 16

growth and repair 
providing structure 
transportation of nutrients, wastes and gases 
formation of enzymes 
immunity 
energy reserve 
body movement

Question 17

explain the function of growth and repair

Answer 17

support growth
maintain good health
needed to repair and replace worn-out cells and tissues

Question 18

explain the function of providing structure

Answer 18

provide structure and internal support to the human body and organs

Question 19

explain the function of transportation of nutrients, wastes and gases

Answer 19

helps transport nutrients, wastes and gases from one tissue to another in the body

Question 20

explain the function of formation of enzymes

Answer 20

involved in chemical reactions in the body

Question 21

explain the function of immunity

Answer 21

form of antibodies

protect the body against attacks by harmful organisms and foreign substances

Question 22

explain the function of energy reserve

Answer 22

if there is insufficient intake of carbs and fats

Question 23

explain the function of body movement

Answer 23

make up a huge portion of the muscles body are able to move through muscle contractions