Photosynthesis

Question 1

All _____________, Including Plants and Algae, Need Food for Respiration, Growth and Reproduction. Plants Make their Own Food Through _________________.

Answer 1

Organisms…Photosynthesis…

Question 2

Cells in Algae and Plant Leaves are Full of Small Green Parts Called Chloroplasts, Which Contain a Green Substance Called ______________.

Answer 2

Chlorophyll.

Question 3

During Photosynthesis, Energy is Transferred from the Environment to the Chloroplasts by _________.

Answer 3

Light.

Question 4

Photosynthesis is an _______________ Reaction - It Needs an Input of Energy From the Environment.

Answer 4

Endothermic.

Question 5

Symbol Equation For Photosynthesis?

Answer 5

6CO2 + 6H2O ——> C6H12O6 + 6O2

Sunlight energy

Question 6

Word Equation For Photosynthesis?

Answer 6

Carbon Dioxide + Water —> Glucose + Oxygen

Sunlight Energy

Question 7

For Photosynthesis to be Successful, a Plant Needs __________ of Carbon Dioxide, Light and Water.

Answer 7

Plenty.

Question 8

Leaves of Plants are Perfectly Adapted as Organs of Photosynthesis Because:

Answer 8

• Most Leaves are Broad, Giving Them a Big Surface Area for Light to Fall On.
• Most Leaves are Thin, So Diffusion Distances for the Gases are Short.
• They Contain Chlorophyll in the Chloroplasts to Absorb Light.

Question 9

Algae are ___________, so they’re Adapted to Photosynthesising in Water. They have a ________ Surface Area and Absorb Carbon Dioxide Dissolved in the Water Around Them.

Answer 9

Aquatic…Large…