Digestion

Question 1

What do proteins do

Answer 1

Make DNA and new cells during growth, repair damaged cells and remove toxins

Question 2

What do carbohydrates do

Answer 2

Main source of energy

Question 3

What do fats do

Answer 3

Make cell membranes and hormones and are a store of energy

Question 4

What do fibres do

Answer 4

Keeps food moving slowly so nutrients from your food can be digested

Question 5

What does water do

Answer 5

Keeps us hydrated and removes waste from the body. It is also needed for chemical reactions

Question 6

What food group isn’t digested

Answer 6

Fibre isnt digested

Question 7

What is excess carbohydrates stored as

Answer 7

Excess carbohydrates are stored as fat

Question 8

What colour does iodine start as

Answer 8

Orangey Brown

Question 9

What colour does iodine change to if starch is detected

Answer 9

Blue/Black

Question 10

What are you testing for if you use iodine

Answer 10

Starch

Question 11

What colour does Biuret solution start as

Answer 11

Turquoise

Question 12

What colour does Biuret solution turn when protein is detected

Answer 12

Lilac

Question 13

What are you testing for if you are using Biuret solution

Answer 13

Proteins

Question 14

What are you testing for if you use ethanol

Answer 14

Fats

Question 15

What colour does ethanol turn when fats are detected

Answer 15

Cloudy White

Question 16

What colour does ethanol start as

Answer 16

Clear

Question 17

What colour does Benedicts solution turn when it detects sugar

Answer 17

Red to green depending on the amount of sugar (Red lots green not much)

Question 18

What is Benedict solution testing for

Answer 18

Sugar

Question 19

What colour does Benedicts solution start as

Answer 19

Turquoise

Question 20

How do you calculate your BMI

Answer 20

Mass/Height²

Question 21

How many joules are in one calorie

Answer 21

4.2 Joules = 1 Calorie

Question 22

What is digestion

Answer 22

The breakdown of food molecules so they can be absorbed

Question 23

Where in the digestive system are the nutrients mostly absorbed

Answer 23

Small Intestine

Question 24

Where in the digestive system is water absorbed

Answer 24

The large intestine

Question 25

What is an enzyme

Answer 25

Something that breaks down big food molecules into smaller molecules that can be absorbed

Question 26

Which enzyme breaks down fats

Answer 26

Lipase

Question 27

What do amylase enzymes break down

Answer 27

Starch

Question 28

What type of enzyme breaks down protein

Answer 28

Protease

Question 29

How can an enzyme get denatured

Answer 29

If it is too hot of in a different pH to what it prefers

Question 30

What temperature to enzymes work best at

Answer 30

37^OC

Question 31

What is the problem with antibiotics

Answer 31

They kill good and bad bacteria

Question 32

What are villi

Answer 32

Long projections that help absorb nutrients

Question 33

Where are the villi found

Answer 33

In the small intestine

Question 34

Special features of villi

Answer 34

Increase surface area and one cell thick to help nutrients diffuse

Question 35

What is peristalsis

Answer 35

When rings or muscles contract and relax in sequence to push food through the digestive system