Topic 1 - Cell Biology

Question 1

What would happen to red blood cells if they were placed in pure water?

Answer 1

They would gain water and swell

Question 2

True or false? Bacteria have both a cell membrane and a cell wall.

Answer 2

False

Question 3

Which cell is considered prokaryotic

Answer 3

Bacteria

Question 4

What is Mycelium known as?

Answer 4

Hyphae

Question 5

What do we call the plant tissues that are continually growing and that contain stem cells?

Answer 5

Meristems

Question 6

Heart muscle tissue has to be able to beat continually without stopping. What adaptation would you expect heart cells to have?

Answer 6

A large number of Mitochondria

Question 7

which direction would you expect the water to move? (Osmosis)

Answer 7

Outside the cell -> Inside the cell

Question 8

True or false? Osmosis is a special form of diffusion.

Answer 8

False

Question 9

What does the term ‘parasite’ mean?

Answer 9

An organism that depends on another organism to grow and reproduce

Question 10

What is ‘differentiation’?

Answer 10

The process by which cells become specialised

Question 11

True or false? Only some protoctists can photosynthesise.

Answer 11

False

Question 12

Which of the following specialised cells is adapted for transmitting messages from one part of the body, to another?

Answer 12

Nerve cells

Question 13

Bacteria is classed as what organism?

Answer 13

Prokaryotic

Question 14

Which two of the following cells are adapted to their roles by having a large surface area?

Answer 14

-Root hair cells
-Red blood cells

Question 15

What is the role of the mitochondria?

Answer 15

-Aerobic Respiration
-Release energy for the cell to use

Question 16

Can adult stem cells differentiate into all types of specialised cell?

Answer 16

No

Question 17

Give two drawbacks of using embryonic stems cells in stem cell therapy.

Answer 17

-Stem cells have a limited supply
-The risk of rejection
-Ethical issues associated with stem cells