Biology Form 4 KSSM Topic 12

Which of the following glands produces insulin?

• Adrenal gland

• Thyroid gland

• Pancreas

• Pituitary gland

Diagram shows the structures involved in reflex action. Which of the following shows the correct sequence for the above action?

• P --> Q --> R --> S

• P --> S --> R --> Q

• Q --> R --> S --> P

• Q --> S --> P --> R

Graph shows the blood glucose concentration in a healthy person before, during and after a meal. What causes the decrease in glucose level 3 hours after the meal?

• Antidiuretic hormone

• Insulin

• Glucagon

• Oestrogen

Diagram shows the pathway of an impulse in a reflex arc. Which statement is true about the diagram?

• J receives an impulse direct from N

• N contract causes the finger to react

• L transmits the impulse from M to K

• There is a receptor at the end of M

The term stimulus refers to ...

• changes in an environment that stimulates a response.

• the extent of changes in the surrounding.

• a change in the environment.

• a change in the pH of the water.

Diagram shows the different endocrine glands in a human. Which of the glands produces hormones that control the metabolic rate of the body?

• A

• B

• C

• D

Diagram shows reflex arc. What is S?

• Ventral root

• Grey matter

• Dorsal root

• Ganglion

What is the function of the axon of a sensory neurone?

• To release neurotransmitter in the synaptic cleft

• To carry impulse away from the cell body

• To speed up the conduction of impulse

• To carry impulse towards the cell body

Diagram shows a cross-section of the human brain. Which part controls the rate of heartbeat?

• A

• B

• C

• D

Diagram shows three types of nerve cells, P, Q and R. Which of the following is the correct sequence of impulses transfer?

• P --> Q --> R

• P --> R --> Q

• R --> P --> Q

• R --> Q --> P