M3.2: BIOLOGICAL MOLECULES - CARBS

Question 1

Whats the importance of biomolecules

Answer 1

constitute cell & tissue structures
regulate metabolic reacts
transmit info
energy

Question 2

How to describe carbohydrate

Answer 2

hydrates carbon
composed of saccarides

Question 3

Describe glucose as a monosacc

Answer 3

hexose sugar
most abundant monosacc

Question 4

List the function of glucose

Answer 4

1. energy source
2. oxidised ( cell resp )
3. synthesis of fatty a and amino a

Question 5

Explain about maltose as a disacc

Answer 5

1. homodimer of glucose units
2. by products of starch hydrolysis
3. degrades into glucose by maltase enzyme

Question 6

What enzyme is used to hydrolyse sucrose into glucose and fructose?

Answer 6

invertase

Question 7

What are the 2 enzymes that hydrolyse lactose?

Answer 7

lactase & B-galactosidase ( bact )

Question 8

Explain about polyscacc

Answer 8

1. many sugar
2. glycosidic linkages
3. most abundant carbo
4. long single / branched chain

Question 9

What process does polysacc undergo to release monosacc

Answer 9

enzymatic / acid hydrolysis

Question 10

List 2 polysaccarides

Answer 10

• heteropolysacc
• homopolysacc

Question 11

What are the examples of homopolysacc

Answer 11

glucans
mannans

Question 12

What subnunits does starch consists of

Answer 12

alpha- glucose subunits

Question 13

List 2 types of a- glucose subunits

Answer 13

amylose
amylopectin

Question 14

Differentiate between amylose and amylopectin

Answer 14

1. amylose is simple unbranced while amylopectin highly branced
2. amylose is not water sol, amylopectin is water sol ( since its branched )
3. amylose has glycosidic