Specialised cells - SB1

Question 1

Describe the properties of a white blood cell

Answer 1

Fights infection/viruses
Created in the bone marrow
found in blood and lymph tissue
Part of the immune system

Question 2

Describe the properties of a red blood cell

Answer 2

carries oxygen
large surface area for oxygen to pass through
found in the blood
Contains haemoglobin which is conjoint with oxygen
Has no nucleus to make room for oxygen

Question 3

Name 3 specialised cells

Answer 3

Sperm cell
Egg cell
Muscle cell
Ciliated cell
Root hair cell
Nerve cell
Red blood cell
White blood cell

Question 4

Define specialised cell

Answer 4

a cell suited to a specific task or purpose

Question 5

Describe properties of ciliated cells

Answer 5

They line the air passage to the lungs and sweep dust and bacteria to prevent blockage of airways, they do this using tiny hairs called cilia

Question 6

Describe the properties of a root hair cell

Answer 6

Found in the roots of plants, they uptake water and nutrients, this is made possible through their large surface area, they also have a thin cell wall to allow water to pass through

Question 7

Describe properties of a nerve cell

Answer 7

They are long cells with neurotransmitters on either ends, their main function is to send signals to the brain

Question 8

Describe properties of a sperm cell

Answer 8

They are streamline with a tail to provide movement
Main purpose is to fertilize the egg
Nucleus only contains half sets of genes

Question 9

Describe properties of an egg cell

Answer 9

Their main purpose is to be fertilized
Found in the ovary
Contains yolk to provide large supply of nutrients for a potential new cell being formed
The nucleus contains a half set of genes like the sperm