Topic 4

Question 1

What are carbohydrates made of

Answer 1

Carbon
Hydrogen
Oxygen

Question 2

What is carbs broken down into

Answer 2

Glycogen molecules which is broken down into glucose

Question 3

What are fats broken down into

Answer 3

Fatty acids and glycerol

Question 4

What are proteins broken down into

Answer 4

Amino acids

Question 5

Enzyme that makes protein

Answer 5

Protease

Question 6

Enzyme that makes fats

Answer 6

Lipase

Question 7

Enzyme that makes carbohydrates

Answer 7

Maltose which is broken down into amylase

Question 8

Testing for starch

Answer 8

Adding iodine solution
Color change from yellow/light brown to blue black

Question 9

Test for reducing sugars

Answer 9

Add Benedict solution
Color change - green to brick res

Question 10

Test for protein

Answer 10

Biuret solution
Blue to purple

Question 11

Test for fats

Answer 11

Colorless to cloudy white

Question 12

Test for vitamin C

Answer 12

Adding DCPIP
Blue to colorless

Question 13

Structure of dna

Answer 13

Twisted ladder of dna called the double helix

Question 14

What is a gene

Answer 14

A short length of dna that makes up a chromosome contains hundred of genes

Question 15

4 different bases of dna

Answer 15

T,A,C,G
A pairs with T
c pairs with G