Photosynthesis

Question 1

What is photosynthesis?

Answer 1

Photosynthesis is a chemical reaction that takes place in plants.

Question 2

What is the word equation for photosynthesis?

Answer 2

water + carbon dioxide ——————————-> glucose + oxygen
chlorophyll, light energy

Question 3

What is the use of the reactants and products of photosynthesis?

Answer 3

water: absorbed from the soil through the roots
carbon dioxide: diffuses into the leaf via the stomata
glucose: transported around the leaf to be used in respiration or stored as starch
oxygen: diffuses out of the leaf via the stomata or used in respiration

Question 4

What is the chemical equation for photosynthesis?

Answer 4

6CO2 + 6H2O ————> C6H12O6 + 6O2

Question 5

Where does photosynthesis occur in the plant?

Answer 5

In the chloroplast.

Question 6

Photosynthesis is an ………………….. and an ………………. reaction.

Answer 6

enzyme-controlled, endothermic

Question 7

What is a limiting factor?

Answer 7

A limiting factor is something that stops the rate of a reaction from increasing, even of other conditions are available. The reaction can only go as fast as the limiting factor allows.

Question 8

What are the limiting factors in photosynthesis?

Answer 8

• carbon dioxide concentration
• temperature
• light intensity