CB2- Mitosis

Question 1

What is mitosis?

Answer 1

The process of cells dividing to produce two daughter cells that are genetically identical to the parent.

Question 2

What happens in an anaphase?

Answer 2

The separated chromosones move away from each other.

Question 3

What is asexual reproduction?

Answer 3

Producing new organisms from one parent only.

Question 4

What is a cancer cell?

Answer 4

A cell that divides uncontrollably.

Question 5

What is a clone?

Answer 5

Offspring from asexual reproduction.

Question 6

What happens during cytokinesis?

Answer 6

The cytoplasm of the cell is separated as the cell membrane is pinched to divide the cell into two daughter cells.

Question 7

What is a daughter cell?

Answer 7

New cell produced by cell division.

Question 8

What happens during interphase?

Answer 8

The cell prepares itself for the process of cell division, DNA replication takes place & the cell makes more of its sub cellular structures.

Question 9

What happens during metaphase?

Answer 9

The chromosones line up across the middle of the cell.

Question 10

What happens during prophase?

Answer 10

The nucleus starts to break down and spindle fibres appear.

Question 11

What happens during telophase?

Answer 11

Chromosones arrive at opposite ends of the cell and the nucleus membrane reforms.

Question 12

What is a meristem?

Answer 12

A small area of undifferentiated cells in s plant where cells are rapidly dividing by mitosis.

Question 13

What is the function of a root hair cell?

Answer 13

Absorb water and minerals (large surface area).

Question 14

What is the function of a xylem cell?

Answer 14

Join with other xylem cells to form long thick walled vessels after they die to carry water and dissolved mineral salts through the plant.

Question 15

What is rejection?

Answer 15

When the immune system attacks and kills cells and tissue from another person.

Question 16

What is an axon?

Answer 16

The long extension of a neurone that carries impulse away from the dendrimer towards other neurones.

Question 17

What is the Central Nervous System (CNS)?

Answer 17

The main part of the nervous system- the brain and the spinal cord.

Question 18

What is neurotransmission?

Answer 18

Impulses passing from neurone to neurone.

Question 19

What is myelin sheath?

Answer 19

Fatty covering around the axons (speeds up transmission)

Question 20

What is a dendrite?

Answer 20

A fine extension from a neurone which carries impulses towards the cell body.

Question 21

What is a dendron?

Answer 21

Large, long extension of a sensory neurone that carries impulses from dendrites towards the axon.

Question 22

What is an impulse?

Answer 22

Electrical signal transmitted along a neurone.

Question 23

What does a receptor cell do?

Answer 23

Receives a stimulus and converts it into an electrical impulse to be sent to brain/ spinal cord.

Question 24

What’s inside a sense organ?

Answer 24

Receptor cells.

Question 25

What is an effector?

Answer 25

Muscle or gland in the body that performs an action upon receiving an impulse.

Question 26

What is a motor neurone?

Answer 26

Neurone that carries impulses to effectors.

Question 27

What is a synapse?

Answer 27

Point at which 2 neurones meet (tiny gap which cannot transmit impulse).

Question 28

What is a reflex?

Answer 28

Response to a stimulus without processing from brain (automatic).

Question 29

What is a relay neurone?

Answer 29

Short neurone (in spinal chord and brain) that links sensory motor and other relay neurones.

Question 30

What is a stimulus?

Answer 30

Change in factor that is detected by receptors.

Question 31

What is the order of mitosis?

Answer 31

Prophase, Metaphase, Anaphase, Telophase, Cytokinesis.