BREATHING SOLUTIONS

Question 1

Difference between iron lung and modern ventillator

Answer 1

Iron lung outside pressure forces air into lungs

Modern = air forced in mechanically

Question 2

-ve and +ve of using modern rather than iron long

Answer 2

-ve: can’t eat

+ve: more freedom

Question 3

Artery

Answer 3

Deoxygenated

Question 4

Why are ions absorbed by active transport

Answer 4

Concerntration of ions in soil is less so energy is needed to move the ions

Question 5

Why plants absorb water through osmosis

Answer 5

Solution in soil is more dilute so water moves from dilute to more concerntrated region

Question 6

Transpiration stream

Answer 6

Water moves up stem via xylem to the leaves

Water evaporates via stomata