Bio B: Bioenergetics (PAPER 1)

Question 1

Photosynthesis

Answer 1

Photosynthesis takes in light energy so is endothermic and takes place in the chlorophyll of the leaves.

Question 2

Photosynthesis word equation

Answer 2

Carbon dioxide + water > glucose + oxygen

Question 3

Factors affecting photosynthesis

Answer 3

Light intensity
Temperature
Carbon dioxide
Chlorophyll

Question 4

Use of glucose in photosynthesis

Answer 4

Producing starch that can be converted back into glucose
Producing cellulose for plant cell walls created by glucose in photosynthesis
Respiration in the mitochondria - releasing energy

Question 5

Transpiration

Answer 5

The movement of water and mineral ions from the roots to the leaves supported by the xylem tissue

Question 6

Translocation

Answer 6

The movement of sucrose, amino acids and other food substances from the leaves to the rest of the plant supported by the phloem tissue

Question 7

Metabolism

Answer 7

Refers to all the chemical reactions taking place in living cells

Question 8

Metabolism word equation

Answer 8

Glucose + oxygen > Carbon dioxide + water