Section 8-2 Photosynthesis

Question 1

What occurs in photosynthesis?

Answer 1

Plants use the energy of sunlight to convert water and carbon dioxide into high energy carbohydrates-sugars and starches and oxygen as a waste product

Question 2

Jan van Helmont conclusion from his experiment

Answer 2

Most of the gain in mass had come from water, because that was the only thing he added

Question 3

Substance produced in Priestley’s experiment

Answer 3

Oxygen

Question 4

What did Ingenhousz show?

Answer 4

That the effect observed by Priestley occurred only when th plant was exposed to light

Question 5

Overall equation for photosynthesis using words

Answer 5

It uses sunlight to convert carbon dioxide and water to sugars and oxygen

Question 6

Photosynthesis using chemical formulas

Answer 6

6CO2+6H2O —light—> C6H12O6+6O2

Question 7

Photosynthesis uses the energy of sunlight to convert water and carbon dioxide into _____ and high energy _____

Answer 7

Oxygen, sugars

Question 8

Principal pigments of plants

Answer 8

Chlorophyll