key definitions- B4

Question 1

Photosynthesis

Answer 1

An endothermic reaction in which energy is transferred from the
environment to the chloroplasts by light

Question 2

Limiting Factor

Answer 2

: A factor that limits the rate of a reaction when there is not enough
of it.

Question 3

Inverse proportion

Answer 3

A relationship between two values where as one value

increases, the other value decreases at the same rate.

Question 4

Inverse square law

Answer 4

As the distance from a light source increases, the light intensity is
inversely proportional to the distance squared - given by the following equation
1/d^2

Question 5

Aerobic respiration

Answer 5

A form of respiration that uses oxygen to release energy from molecules like glucose

Question 6

Aerobic respiration equation

Answer 6

glucose + oxygen—> carbon dioxide + water

Question 7

Anaerobic respiration

Answer 7

A form of respiration that releases energy from molecules

like glucose without using oxygen

Question 8

Anaerobic respiration equation

Answer 8

Glucose–> lactic acid

Question 9

Cellular respiration:

Answer 9

An exothermic reaction which is continuously occurring in

living cells.

Question 10

Metabolism

Answer 10

The sum of all the reactions in a cell or the body

Question 11

Oxygen Debt

Answer 11

The amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells.