1.1 Carbohydrates

Question 1

Monomer

Answer 1

single repeating unit of polymer

Question 2

polymer

Answer 2

large unit which joins up monomers

Question 3

what is a biological molecule

Answer 3

a small number of chemical elements what frequently consist of monomers combined into polymers

Question 4

what do carbohydrates contain

Answer 4

carbon
hydrogen
oxygen

Question 5

what are carbohydrates used as

Answer 5

• energy store
• structural materials (cell walls + membranes)
• animal skeletons (chittin)

Question 6

carbohydrate formula

Answer 6

Cn(H2O)n (n = no of carbon)

Question 7

what are the 3 types of carbohydrate?

Answer 7

Monosaccharide
disaccharide
polysaccharide

Question 8

What are the general properties of all monosaccharides?

Answer 8

Sweet-tasting
soluble
cannot be broken down

Question 9

Which groups of mononsaccharides have 3, 5 and 6 carbons, respectively?

Answer 9

Triose (3C) pentose (5C), hexose (6C)

Question 10

glucose formula

Answer 10

C6 H12 O6 (Hexose)

Question 11

isomer

Answer 11

molecular formulas, but different arrangements of atoms

Question 12

general term for a single sugar unit?

Answer 12

Monosaccharide

Question 13

general formula for a monosaccharide?

Answer 13

(CH2O)n

Question 14

name a triose

Answer 14

glyceraldehyde

Question 15

name a pentose

Answer 15

ribose

Question 16

name a hexose

Answer 16

glucose, galactose and fructose

Question 17

what molecule contains ribose

Answer 17

RNA

Question 18

what molecule contains deoxyribose.

Answer 18

DNA

Question 19

What is the function of triose and hexose sugars?

Answer 19

cellular respiration