Unit 2-Control And Communication

Question 1

Central Nervous System (CNS)

Answer 1

The brain and spinal cord

Question 2

Name structures 1, 2 and 3 of the human brain as labelled in the diagram

Answer 2

1. Cerebrum
2. Cerebellum
3. Medulla

Question 3

Part of the brain responsible for conscious thought, emotions and memory

Answer 3

Cerebrum

Question 4

Area of the brain which controls balance and muscle co-ordination

Answer 4

Cerebellum

Question 5

Part of the brain that controls the heart and breathing rate

Answer 5

Medulla

Question 6

Fast response to danger

Answer 6

Reflex Action

Question 7

Neuron that carries electrical impulses from a receptor to the CNS

Answer 7

Sensory neuron

Question 8

Neuron that carries an electrical impulse from the CNS to a muscle or a gland

Answer 8

Motor neuron

Question 9

The order of neurons in a reflex arc

Answer 9

Sensory → Inter → Motor

Question 10

A tiny gap between two neurons

Answer 10

Synapse

Question 11

Carries a message across a synapse from one neuron to the next

Answer 11

Chemical messenger

Question 12

Glands that make and release hormones

Answer 12

Endocrine glands

Question 13

Transports hormones from an endocrine gland to a target organ

Answer 13

Blood / Blood vessels

Question 14

Protein on the surface of a target cell that is complementary to a hormone

Answer 14

Receptor

Question 15

Cell that has a protein receptor that recognises a hormone

Answer 15

Target cell

Question 16

Organ that detects a change in blood glucose

Answer 16

Pancreas

Question 17

Released by the pancreas in response to an increase in blood glucose

Answer 17

Insulin

Question 18

Released by the pancreas in response to a decrease in blood glucose

Answer 18

Glucagon

Question 19

Molecule made in liver by joining together many glucose molecules

Answer 19

Glycogen

Question 20

Organ that stores glucose as glycogen

Answer 20

Liver

Question 21

Term for the control of blood glucose concentration

Answer 21

Regulation

Question 22

Health condition due to the failure to release or respond to insulin

Answer 22

Diabetes