The Digestive System

Question 1

Ingestion/eating

Answer 1

Food is taken in by the body

Question 2

Digestion

Answer 2

Food is broken down

Question 3

Absorption

Answer 3

Digested food passes into the bloodstream

Question 4

Assimilation

Answer 4

Using the food in the cells of the body

Question 5

Elimination

Answer 5

Getting rid of undigested food

Question 6

Taking large pieces of food and breaking them into smaller pieces happens in the…

Answer 6

Mouth (teeth)
Stomach (chuming)

Question 7

Chemical digestion

Answer 7

Involves the use of chemicals called enzymes to break down food. Enzymes are chemicals that speed up reactions without being used up in the reaction

Question 8

How enzymes work

Answer 8

Enzymes act on a substrate and breaks it down into a product e.g. substrate=starch, enzyme=amylase (saliva), product= maltose (sugar)

Question 9

Incisors

Answer 9

At the front of the mouth.4 upper 4 lower. Used for biting and cutting

Question 10

Canine

Answer 10

One on either side of the incisors. 2 upper and 2 lower. Grasp and tear food

Question 11

Pre-molar

Answer 11

3 at either side of the canine. Six upper and six lower. Grind and crush food

Question 12

Molars

Answer 12

2 at either side of the premolars. 4 upper and 4 lower. Grind and crush food

Question 13

Herbivore

Answer 13

Only eats plants. Very large incisors. Large molars and pre-molars to chew grass

Question 14

Carnivore

Answer 14

Only eats meat. Large canine teeth. Used the teeth to catch and tear their prey

Question 15

Omnivore

Answer 15

Eats plants and meat. Needs all of the different teeth