Respiration

Question 1

List 3 things we need energy to do.

Answer 1

Control body temp.
For chemical reactions.
For movement.

Question 2

What is the word and symbol equation for aerobic respiration?

Answer 2

Glucose + oxygen → carbon dioxide +water.

C6H12O6 + 6O2 → 6CO2 + 6H2O

Question 3

What is the word equation for anaerobic respiration?

Answer 3

Glucose → lactic acid

Question 4

What is the word equation for fermentation?

Answer 4

Glucose → ethanol + carbon dioxide.

Question 5

Define oxygen dept.

Answer 5

It is the amount of oxygen which must be taken in to convert all the lactic acid to carbon dioxide.

Question 6

What is lactic acid?

Answer 6

It’s the by-product of anaerobic respiration which causes muscle cramp.

Question 7

What are the 3 factors that affect fermentation?

Answer 7

Temperature.
Glucose concentration.
Density of yeast.

Question 8

What is the word and symbol equation for photosynthesis?

Answer 8

Carbon dioxide + water → oxygen + glucose.

6CO2 + 6H20 → C6H12O6 + 6O2

Question 9

What is the equation for a light dependent reaction?

Answer 9

H2O → 2H+ + 2e- + 1/2 O2

Question 10

What is the equation for a light independent reaction?

Answer 10

2H2O → 4H+ +4e- + O2

Question 11

Give 3 things glucose in respiration is used for.

Answer 11

Cellulose to form cell walls.
Proteins for growth and repair.
Starch food store.

Question 12

What is the formula for the rate of photosynthesis?

Answer 12

Rate = I/time

Question 13

What is the formula for relative light intensity?

Answer 13

1 / Distance from light source^2