Memorise

Question 1

The reflex pathway in order

Answer 1

Stimulus - receptor - sensory neurone - relay neurone - motor neurone - effector - response

Question 2

Name three things that are controlled by homeostasis?

Answer 2

Body temperature
Blood glucose
Water levels

Question 3

Cytoplasm functions

Answer 3

A jelly-like material that contains dissolved nutrients and salts and structures called organelles. It is where many of the chemical reactions happen.

Question 4

Nucleus functions

Answer 4

Contains genetic material, including DNA, which controls the cells activities

Question 5

Cell membrane functions

Answer 5

It is permeable to some substances but not to others and so controls the movement of substances in and out of the cell.

Question 6

Mitochondria functions

Answer 6

Organelles that contains the enzymes for respiration, and where most energy is released in respiration.

Question 7

Ribosomes functions

Answer 7

Tiny structures where protein synthesis occurs

Question 8

Chloroplast functions

Answer 8

Organelle that contains the green pigment, chlorophyll, which absorbs light energy for photosynthesis. Contains the enzymes needed for photosynthesis.

Question 9

Cell wall functions

Answer 9

Plant and bacterial cell walls provide structure and protection. Only plant cell walls are made from cellulose.

Question 10

Permanent vacuole functions

Answer 10

Filled with cell sap to help keep the cell swollen.