Ch06Photosynthesis

Question 1

Anabolic process which uses light to convert carbon dioxide and water into carbohydrates

Answer 1

photosynthesis

Question 2

Convert light energy into chemical energy in the form of ATP and the reduced electron carrier NADPH

Answer 2

light reactions

Question 3

use ATP and NADPH made by the light reactions, along with carbon dioxide to produce carbohydrates

Answer 3

carbon-fixation reactions

Question 4

“waves” of light

Answer 4

electromagnetic radiation

Question 5

“particles” of light

Answer 5

photons

Question 6

molecules that absorb wavelengths in the visible spectrum

Answer 6

pigments

Question 7

plotting of light absorbed by a pigment against its wavelength

Answer 7

absorption spectrum

Question 8

Plot of the biological activity of an organism against the wavelengths of light to which it is exposed

Answer 8

action spectrum

Question 9

The main light absorption pigment in plants

Answer 9

chlorophyll

Question 10

The source of oxygen in photosynthesis

Answer 10

water

Oxygen, a product of photosynthesis, comes from the splitting of a water molecule (NOT from the CO₂)