Cells (chapter 1)

Question 1

Ribosome

Answer 1

synthesizes proteins

Question 2

smooth endoplasmic reticulum

Answer 2

synthesizes lipids and steroids

Question 3

rough endoplasmic reticulum

Answer 3

synthesizes proteins, the function of detoxification - removal of harmful substances

Question 4

mitochondria

Answer 4

Undergo aerobic respiration to break down nutrients and release energy for the cell to use( growth and reproduction)

Question 5

what parts are red blood cells lacking

Answer 5

nucleus and mitochondria

Question 6

lack of mitochondria in red blood cells because..?

Answer 6

Mitochondria releases energy. If they have mitochondria, the red blood cells will then use up the oxygen it is carrying and thus it will be used up by the cell instead.

Question 7

Why animal cells have no cell wall

Answer 7

• cell wall provide rigid structure
• animals need to move around
• cell wall will restrict their movement, cause them to be unable to move/move well

Question 8

why red-blood cells have bi-concaved shape?

Answer 8

INCREASE surface area for haemoglobin to react and bind with MORE oxygen, to carry MORE oxygen to different parts of the body

Question 9

Golgi body

Answer 9

stores and packages substances to be expelled from the cell.