4.4.2 aerobic and anaerobic respiration

Question 1

State the equation for aerobic respiration

Answer 1

Oxygen + glucose = carbon dioxide + water + energy

Question 1

What is the equation for anaerobic respiration

Answer 1

Glucose = lactic acid + energy

Question 2

What is the equation for photosynthesis

Answer 2

Carbon dioxide + water ———-> (with light and chlorophyll) ———> glucose and oxygen + energy

Question 3

What is the iodine test

Answer 3

This test tests for starch.
Cover the leaf completely in iodine
If starch is present a blue / black colour will become visible.

Question 4

State characteristics of aerobic respiration

Answer 4

Uses oxygen
Is slower than anaerobic
Produces more energy

Question 5

State characteristics of anaerobic respiration

Answer 5

Takes faster
Produces little energy
Produces lactic acid, causing muscle pains and stitches.

Question 6

What does metabolism include

Answer 6

Respiration
Breakdown of excess proteins to form urea
Conversion of glucose into starch, glycogen and cellulose
Formation of lipid molecules from a molecule of glycerol and three molecules of fatty acids
The use of glucose and nitrate ions to form amino acids which, in turn, are used to synthesise proteins.