Unit 3 - KA1 - Photosynthesis

Question 1

production of carbohydrate by a plant using the energy of light

Answer 1

Photosynthesis

Question 2

When light energy is captured by pigments in the leaf

Answer 2

Absorption

Question 3

When light energy passes through the surface of the leaf

Answer 3

Transmission

Question 4

When light energy bounces off the surface of the leaf

Answer 4

Reflection

Question 5

Graph showing wavelengths of light absorbed by a pigment

Answer 5

Absorption spectrum

Question 6

Graph showing the wavelengths of light actively involved in photosynthesis

Answer 6

Action spectrum

Question 7

Green pigment molecule in plants that absorbs red and blue light for photosynthesis

Answer 7

Chlorophyll A and B

Question 8

Orange and yellow accessory pigments in plants. Extend the range of wavelengths absorbed by photosynthesis and pass the energy to chlorophyll.

Answer 8

Carotene

Question 9

Membrane-bound enzyme that synthesises ATP

Answer 9

ATP-synthase

Question 10

Breakdown of water molecules using energy from light

Answer 10

Photolysis

Question 11

Coenzyme. Hydrogen carrier in photosynthesis

Answer 11

NADP

Question 12

The enzyme which fixes carbon dioxide by attaching it to RuBP in the Calvin cycle

Answer 12

RuBisCo

Question 13

Acceptor of carbon dioxide in the Calvin cycle

Answer 13

Ribulose Biphosphate (RuBP)

Question 14

Carbon fixation stage of photosynthesis

Answer 14

Calvin Cycle

Question 15

Produced when CO2 is fixed to RuBP by RuBisCo

Answer 15

3-phosphoglycerate (3PG)

Question 16

Compound in the Calvin cycle that can be converted to glucose or used to regenerate RuBP

Answer 16

Glyceraldehyde-3-phosphate. (G3P)

Question 17

Structural carbohydrate in cell walls derived from photosynthesis

Answer 17

Cellulose

Question 18

Storage carbohydrate derived from photosynthesis

Answer 18

Starch

Question 19

Carbohydrate produced during photosynthesis, which can be used immediately for respiration.

Answer 19

Glucose

Question 20

The increase in mass due to photosynthesis minus the loss due to respiration and can be measured by the increase in dry mass per unit leaf area.

Answer 20

Net Assimilation

Question 21

The rate of generation of new biomass per unit area per unit of time

Answer 21

Productivity

Question 22

The total plant biomass

Answer 22

Biological Yield