Respiration (P1)

Question 1

Energy is needed for

Answer 1

Growth
Cell division
Muscle contraction
Protein synthesis
Active transport
Nerve impulses

Question 2

Aerobic respiration

Answer 2

The reverse of photosynthesis with energy released

Complete breakdown of glucose using oxygen

Question 3

Anaerobic respiration (muscles)

Answer 3

Incomplete breakdown of glucose without oxygen

Produces lactic acid and very little energy

Question 4

Anaerobic respiration (plants and yeast)

Answer 4

Glucose to yeast and carbon dioxide

C6H12O6 to 2(C2H5OH) and 2(CO2)

Question 5

Fermentation and 1 use

Answer 5

The chemical breakdown of a substance by microorganisms

Producing alcohol

Question 6

Metabolism

Answer 6

All of the chemical reactions in an organism
Some make large molecules from small e.g.
Glucose to starch. Glycogen (storage in animals) glucose and nitrate ions to amino acids
Some make small molecules from large e.g.
Glucose broken down in respiration
Excess protein broken down to form urea, removed in urine

Question 7

How and where is glucose stored?

Answer 7

Glycogen

Liver and muscles