Tissues, organ and organ systems

Question 1

Organs:

Answer 1

Contains different tissues working together to carry out a particular function

Question 2

Muscular tissue:

Answer 2

Contracts, bringing about movement.

Used to churn the food in the contents of the stomach.

Question 3

Glandular tissue:

Answer 3

Produces substances such as enzymes and hormones.

Question 4

Epithelial tissue:

Answer 4

Covers some parts of the body.

Question 5

Pancreas and salivary glands:

Answer 5

Produce digestive ‘juices’

Question 6

Liver:

Answer 6

Produces bile.

Question 7

Small intestine:

Answer 7

Digests and absorbs soluble food.

Question 8

Large intestine:

Answer 8

Absorbs water from undigested food, producing faeces.

Question 9

Tissue:

Answer 9

Consists of a group of specialised cells which carry out a particular function

Question 10

Epidermal Tissue:

Answer 10

Covers the plant.

Question 11

Xylem and phloem:

Answer 11

Transports substance around the plant.

Question 12

What adaption in the leaf helps protect it?

Answer 12

A thin, waxy cuticle made of wax. (wax cuticle)

Question 13

What adaptation in a leaf allows more light to reach the palisade cells?

Answer 13

A thin, transparent epidermis.

Question 14

What absorbs light in a leaf?

Answer 14

The layer of palisade cells on the top surface of the leaf.

Question 15

How do the palisade cells absorb light?

Answer 15

They contain a lot of chloroplasts.

Question 16

What do spongy mesophyll have?

Answer 16

Big air spaces to allow carbon dioxide to diffuse through the leaf, and to increase the surface area

Question 17

Types of plant organ:

Answer 17

• Stem
• Root
• Leaf

Question 18

Leaf adaptation: Chlorophyll:

Answer 18

To absorb sunlight.

Question 19

Leaf adaptation: Large surface area:

Answer 19

To absorb more light

Question 20

Leaf adaptation: Stomata:

Answer 20

To let carbon dioxide diffuse into the leaf.

Question 21

Why is a leaf cell being thin useful?

Answer 21

Shorter distance for carbon dioxide to diffuse into the leaf cell.

Question 22

What is the purpose of the network of veins on a leaf?

Answer 22

Supports the leaf, transports water and carbohydrates.