Chapter 8

Question 1

The first stage of photosynthesis, in which the energy of sunlight is absorbed and converted into chemical energy in the form of ATP and NADPH.

Answer 1

light-dependent reactions

Question 2

The second stage of photosynthesis, in which electrons are used as a source of energy to convert inorganic CO₂ to an organic form

Answer 2

light-independent reactions; Calvin cycle

Question 3

The opening between a pair of guard cells in the epidermis of a plant leaf or stem, though which gases and water vapor pass.

Answer 3

stomata

Question 4

In electromagnetic radiation, the horizontal distance between the crests of successive waves.

Answer 4

wavelength

Question 5

Molecule of green pigment that absorbs photons of light in photosynthesis.

Answer 5

chlorophylls

Question 6

Molecule of yellow-orange pigment by which light is absorbed in photosynthesis.

Answer 6

carotenoids

Question 7

An organism that produces its own food using CO₂ AND other simple inorganic compounds from its environment and energy from the Sun or from oxidation of inorganic substances.

Answer 7

autotrophs

Question 8

An organisms that acquires energy and nutrients by eating other organisms or their remains.

Answer 8

heterotrophs

Question 9

A plant that initially fixes carbon into a three-carbon molecule using the C3 pathway.

Answer 9

C3 plant

Question 10

Process in which electrons are used as a source of energy to convert inorganic CO2 to an organic form.

Answer 10

CO2 fixation