Carbohydrates

Question 1

An aldehyde or ketones derivatives of polyhydroxy-alcohol

Answer 1

Carbohydrates

Question 2

Carbohydrates is composed of which elements?

Answer 2

Carbon, Hydrogen, Oxygen (CHO)

Question 3

How are carbohydrates classified?

Answer 3

Based on number of saccharide units
Based of functional group

Question 4

Functional group present in carbohydrates: (2)

Answer 4

Aldehydes
Ketones

Question 5

Most abundant CHO in the body

Answer 5

Glucose

Question 6

Monosaccharide found in nucleic acid

Answer 6

Ribose and Deoxyribose

Question 7

What bonds 2 monosaccharides together?

Answer 7

Glycosidic bond/linkage

Question 8

Types of glycosidic bond and its orientation

Answer 8

Alpha - oriented down
Beta - oriented up

Question 9

Monosaccharides present in sucrose

Answer 9

Glucose + Fructose

Question 10

Table sugar

Answer 10

Sucrose

Question 11

Glycosidic bond of sucrose

Answer 11

alpha (oriented down)

Question 12

Monosaccharides present in lactose

Answer 12

Glucose + Galactose

Question 13

Glycosidic bond of lactose

Answer 13

Beta (oriented up)

Question 14

Principal Disaccharide in milk in cows & human

Answer 14

Lactose

Question 15

Monosaccharides present in Maltose

Answer 15

Glucose + Glucose

Question 16

Glycosidic bond of maltose

Answer 16

alpha (oriented down)

Question 16

Carbohydrates containing ≥ 3 monosaccharides units

Answer 16

Polysaccharides

Question 17

Monosaccharides present in cellulose

Answer 17

Glucose

Question 18

Polysaccharides Found in cells of nearly all plants

Answer 18

Cellulose

Question 19

Cellulose is the main polysaccharide found in seeds/roots of plants. It cannot be digested by humans.

a. 1st statement is true, 2nd statement of true
b. 1st statement is true, 2nd statement of false
c. 1st statement is false, 2nd statement of true
d. 1st statement is false, 2nd statement of false

Answer 19

c. 1st statement is false, 2nd statement of true

Starch is the main polysaccharide found in seeds/roots of plants.

Cellulose is a polysaccharide found in cells of nearly all plants. It cannot be digested by humans.

Question 20

Major form of polysaccharides found in animals/human

Answer 20

Glycogen

Question 21

Glycogen is stored in which part of the body?

Answer 21

Liver (majority)
Muscles

Question 22

Unbranched type of starch and its percentage

Answer 22

Amylose (20%)

Question 23

Branched type of starch and its percentage

Answer 23

Amylopectin (80%)

Question 24

How is monosaccharides classified?

Answer 24

Based of functional group Based on number of carbon group

Question 25

How many carbon groups are usually present in monosaccharides?

Answer 25

3-6 carbon group

Question 26

Functional group is at the END of carbon chain

Answer 26

Aldehyde (Aldose)

Question 27

Functional group is in between the 2 carbon groups

Answer 27

Ketones (Ketose)