B2.2 - Tissues, Organs And Organ Systems

Question 1

What is the purpose of an organ system?

Answer 1

Exchanging and transporting materials.

Question 2

What are similar cells working together called?

Answer 2

Tissues.

Question 3

What is a group of tissues working together called?

Answer 3

An organ.

Question 4

What does muscular tissue do?

Answer 4

Contracts/shortens to move whatever is attached to it.

Question 5

What does glandular tissue do?

Answer 5

Creates and secretes chemicals e.g. enzymes and hormones.

Question 6

What does epithelial tissue do?

Answer 6

Covers parts of the body.

Question 7

What does muscular tissue do in the stomach?

Answer 7

Churns up the food.

Question 8

What does glandular tissue do in the stomach?

Answer 8

Makes digestive juices to digest food.

Question 9

What does epithelial tissue do in the stomach?

Answer 9

Covers the outside and inside of the stomach.

Question 10

What is an organ system?

Answer 10

A group of organs working together to perform a particular function.

Question 11

What does the digestive system contain? (5)

Answer 11

1. Glands.
2. Stomach.
3. Liver.
4. Small intestine.
5. Large intestine.

Question 12

What are the functions of glands in the digestive system?

Answer 12

To produce digestive juices.

Question 13

What is the function of the stomach in the digestive system?

Answer 13

To digest food.

Question 14

What is the function of the liver in the digestive system?

Answer 14

Produces bile.

Question 15

What is the function of the small intestine in the digestive system?

Answer 15

To digest food and absorb food molecules.

Question 16

What is the function of the large intestine in the digestive system?

Answer 16

To absorb water from undo heated food and produce faeces.

Question 17

Name the organs in a plant. (3)

Answer 17

1. Roots.
2. Stems.
3. Leaves.

Question 18

What is the function of epidermal tissue in plants?

Answer 18

To cover the whole plant.

Question 19

What is the function of mesophyll tissue in plants?

Answer 19

Where the photosynthesis occurs.

Question 20

What is the function of the xylem in plants?

Answer 20

To transport water from the roots to the leaves.

Question 21

What is the function of the phloem in plants?

Answer 21

To transport mineral ions and sucrose around the plant.

Question 22

What occurs during the development of a multicellular organism?

Answer 22

Differentiation (cells become specialised).