Chapter 5- Digesyive System And Enzymes

Question 1

Physical digestion

Answer 1

Where the food is broken down by the teeth and by the churning action of the muscles in the digestive system.

Question 2

Chemical digestion

Answer 2

Where the food is broken down by special chemicals called enzymes.

Question 3

Enzymes

Answer 3

Biological catalysts

Question 4

Catalyst

Answer 4

A substance that speeds up the rate of a reaction and is not used up in the action.

Question 5

How many teeth are in a human adult?

Answer 5

32

Question 6

Amylase

Answer 6

An enzyme

Question 7

Substrate

Answer 7

The substance an enzyme works on

Question 8

Stages in nutrition

Answer 8

• Eating
• Digestion
• Absorbtion

Question 9

Mouth

Answer 9

Where food is chewed and mixed with saliva.

Question 10

Oesophagus

Answer 10

Carries food from mouth to stomach by muscular action.

Question 11

Liver

Answer 11

Produces bile which helps digestion of fats. It sorts and stores some digestive food.

Question 12

Large intestine

Answer 12

Takes water back into the bloodstream leaving solid waste.

Question 13

Appendix

Answer 13

No function in humans.

Question 14

Rectum

Answer 14

Where solid waste is stored.

Question 15

Stomach

Answer 15

Produces digestive juices. Food and digestive juices are mixed.

Question 16

Pancreas

Answer 16

Produces digestive enzymes.

Question 17

Small intestine

Answer 17

More juices containing enzymes are added to help digest the food. Fully digested food is absorbed into the bloodstream.

Question 18

Liver

Answer 18

The liver has many functions including bile.

Question 19

Pancreas

Answer 19

The pancreas produces enzymes.

Question 20

Digestion

Answer 20

Digestion is the breakdown of large, insoluble food molecules into small soluble food molecules.