Cells and Control

Question 1

What are the stages of mitosis and explain each one

Answer 1

Prophase-the chromosomes condense, nucleus breaks down
Metaphase-the chromosomes line up in the middle
Anaphase- spindle fibres pull apart the chromosomes
Telophase- membranes form around the two new cells
Cytokinesis- two new cells

Question 2

What are 3 types of neurones and explain them

Answer 2

Sensory- long den dorm carries nerve impulse from receptor cells
Motor- many short dendrites carry nerve impulses from the CNS to the cell body
Relay- many short dendrites carry nerve impulses from sensory neurones to the cell body