Extra: The Unknowns

Question 1

Which side of the heart is larger and why?

Answer 1

• Left hand side

- It needs to generate more pressure to send blood around whole body

Question 2

Which side of the heart would be blue (deoxygenated)? The left atrium and ventricle or the right atrium and ventricle?

Answer 2

RIGHT ATRIUM AND RIGHT VENTRICLE

Question 3

Is the vena cava on the oxygenated or the deoxygenated side of the heart?

Answer 3

DEOXYGENATED

Question 4

People with cystic fibrosis produce excess mucus inside their body. What are the two places that it affects?

Answer 4

Lungs

Pancreas

Question 5

What are 3 symptoms of Huntington’s disease?

Answer 5

Memory loss
Uncontrollable muscle movements
Confusion

Question 6

What two things does plasma carry?

Answer 6

-Carbon dioxide from respiring tissues to the
lungs
-Soluble products from the small intestine to the cells that need them.

Question 7

(Homeostasis) Carbon dioxide dissolves in water; how does this affect the pH?

Answer 7

Decreases the pH, making the water acidic

Question 8

If the body is well hydrated, will the kidneys

recover more, or less water?

Answer 8

Well hydrated, kidneys recover less water

Question 9

What does the colon do?

Answer 9

Removes water from faeces