Blood

Question 1

What is blood?

Answer 1

Blood is a tissue consisting of plasma in which the red blood cells, white blood cells, and platelets are suspended

Question 2

What is plasma?

Answer 2

It is the pale yellow fluid part of blood and it transport cells, CO2, hormones and waste.

Question 3

Give three adaptations of the red blood cell

Answer 3

. Have no nucleus so there is more room to carry O2
. Contain the red pigment haemoglobin which carries O2
. They have a large surface area to volume ratio for faster diffusion of oxygen.

Question 4

What do white blood cells do?

Answer 4

Some produce antibodies (proteins that bind to microbes and destroy them) and other surround and engulf foreign cells, all have a nucleus

Question 5

What’s the platelets?

Answer 5

Tiny fragments of cells (no nuclei) clump together to help form clots, protect the body by stopping/reducing bleeding