Unit 4.2 Animal tissues, organs and organ systems and enzymes Flashcards Preview

11B1 - AQA Biology Trilogy > Unit 4.2 Animal tissues, organs and organ systems and enzymes > Flashcards

Flashcards in Unit 4.2 Animal tissues, organs and organ systems and enzymes Deck (94)
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1

What is a meant by a specialised cell?

A cell that carries out a particular function (job).

2

What is meant by differentiation?

When a stem cell changes into a specialised cell.

3

What is a stem cell?

An undifferentiated cell that can change into any type of cell.

4

What is meant by an 'undifferentiated cell'?

A cell that has not yet changed into a specialised cell (e.g. stem cells)

5

Many similar cells form a...

tissue

6

Many tissues form an...

organ

7

Many organs form an...

organ system

8

Many organ systems form an...

organism

9

When does differentiation occur in multicellular organisms?

During the development (in the uterus/womb)

10

What is meant by a multicellular organism?

An organism that is made from many different types of specialised cells.

11

Why do large multicellular organisms require organ systems?

To transport materials.

To exchange materials.

12

Name the 3 types of tissue that form the stomach (organ).

Epithelial tissue

Glandular tissue

Muscular tissue

13

What is the function of epithelial tissue in the stomach?

It covers the stomach like a skin.

14

What is the function of muscular tissue in the stomach?

It contracts to allow the stomach to churn food.

15

What is the function of glandular tissue in the stomach?

It secretes digestive enzymes that break down food.

16

What is the function of glandular tissue?

It secretes enzymes.

It secretes hormones.

17

Identify the organ system

Digestive System

18

Identify the organ.

19

Identify the organ.

20

Identify the organ.

21

Identify the organ.

22

Identify the organ.

23

Identify the organ.

24

Identify the organ.

25

Identify the organ.

26

what organ produces digestive juices

glands e.g. pancreas, salivary gland

27

where in the digestive system does digestion take place?

mouth

stomach

small intestine

28

amylase breaks down

starch

29

what is starch broken down into?

glucose

30

protease breaks down?

proteins