Digestion

Question 1

Test for starch

Answer 1

Iodine will go blue black if starch is present

Question 2

Test for glucose

Answer 2

Benedict’s solution will go colours between blue to brick red

Question 3

Test for protein

Answer 3

Biuret test will go to colours between blue to violet

Question 4

Enzyme that breaks down carbohydrates

Answer 4

Carbohydrase

Question 5

Enzyme that breaks down protein

Answer 5

Protease

Question 6

Enzyme that breaks down fats (lipids)

Answer 6

lipase

Question 6

Where are carbohydrase produced

Answer 6

Mouth,
pancreas and
small intestine

Question 7

Where are Protease produced

Answer 7

Stomach,
pancreas and
small intestine

Question 8

Where are lipase produced

Answer 8

Pancreas, mouth, and stomach

Question 8

What are carbohydrates used for

Answer 8

Energy

Question 9

What is protein used for

Answer 9

Growth and repair of tissue (muscles)

Question 10

What are fats used for

Answer 10

Energy store make cell membranes

Question 11

What is water used for

Answer 11

most or all body processes

Question 12

What are lipids broken down into

Answer 12

glycerol and fatty acids

Question 13

what are carbohydrates broken down into

Answer 13

glucose

Question 14

what are proteins broken down into

Answer 14

amino acids

Question 15

what does bile do

Answer 15

Emulsifies fats which breaks them into smaller globules of fat which increases the surface area and makes it easier to bb broken down by the enzymes. Also increases the PH of food into the optimum PH for lipase

Question 16

What does the liver do

Answer 16

Secrets bile

Question 17

What does the large intestine do

Answer 17

Absorbs water

Question 18

What does the pancreas do

Answer 18

Makes and secrets all enzymes into the intestine to break down the food

Question 19

What does the oesophagus do

Answer 19

waves of muscular contraction and relaxation force food down the oesophagus into the stomach. This is called peristalsis

Question 20

What does the small intestine do

Answer 20

where digested food molecules are absorbed

Question 21

How is the small intestine specialised for its job

Answer 21

Villi increase surface area for diffusion of soluble food into blood.
Good blood supply,
removing absorbed food to maintain a diffusion gradient