This biology revision document contains 14 questions testing knowledge of various human body systems including: 1) The heart, including its chambers, valves, and lifestyle choices to maintain heart health. 2) Lungs and respiration, including how air moves through the respiratory system and differences between inhaled and exhaled air. 3) The digestive system, including ordering organs and the functions of the skeleton. 4) Bone health, including required minerals and vitamins and a condition like osteoporosis that affects bones.

1. S1 Biology Revision
1. Name 2 characteristics exhibited by living things and describe their
importance
2. Answer the following questions about the heart:
(i) How many chambers does it have?
(ii) What are the name of the chambers?
(iii) Which side of the heart receives blood low in oxygen and pumps it
to the lungs?
(iv) Which side of the heart receives blood rich in oxygen and pumps
it to the body?
(v) What stops the blood flowing backwards?
(vi) Name the major vein that delivers blood from the body to the
right atrium
(vii) Name the major artery that carries blood out of the heart to the
rest of the body
(viii) State 3 lifestyle choices a person can do to maintain a healthy
heart

2. 3. Match the factor being measured to the instrument used
Factor Instrument
Vital capacity Stethoscope
Blood pressure Peak flow meter
Heart rate Dynamometer
Peak flow Sphygmomanometer
Muscle strength Breathing volume bag
4. Fill in the blanks below:
During exercise our body needs more o__________ and food to be
delivered to our cells for more e________. Our breathing rate increases
to collect more oxygen, the heart p______ faster to deliver the food and
oxygen to our tissues.
5. State 2 differences between inhaled and exhaled air
6. Answer the following questions about the lungs:
(i) How does air enter our body?
(ii) Complete the passage below:
The windpipe divides into 2 branches called the left b_________
and the right b________. Each bronchus divides into several
branches called b_______________. The bronchioles end in
microscopic a_____ s_______. Once the air reaches the air sac,

3. oxygen will pass into the b__________. C_________
d________ moves in the opposite direction.
7. What do we mean by vital capacity and what do you use to measure it?
8. Describe how to find your peak flow.
9. Put the following parts of the digestive system in the right order
anus, oesophagus , rectum, small intestine, mouth, stomach, large intestine
10. At what age do people in the UK get screened for bowel cancer?
11.State the 3 functions of the skeleton?
12. Name the mineral and vitamin required for strong bones.
13. Name a condition that can affect the bones, describe the symptoms and
effects on the individual’s quality of life.

4. 14. Label the following diagrams