[Unit 3.5] | Cell Specialisation And Organisation

Question 1

What is cell differentiation?

Answer 1

• When cells become specialised to perform certain functions.

Question 2

What is a tissue?

Answer 2

• A collection of cells performing a similar function.

Question 3

What are organs?

Answer 3

Collections of tissues that performs a one major function.

Question 4

What is an organ system?

Answer 4

A collection of organs that interact to perform particular functions.

Question 5

What are 2 examples of tissues?

Answer 5

• Epithelial Tissue
• Xylem

Question 6

Name each tissue & their functions within leaves.

Answer 6

• Palisade mesophyll: Made up of palisade cells that carry out photosynthesis.

• Spongy mesophyll: Adapted for gaseous diffusion

• Epidermis: Protects leaf and allows gaseous diffusion

• Phloem: Transports organic materials away from the leaf

• Xylem: Transports water and ions into the leaf.