11.2 Study Guide

Question 1

Photosynthesis

Answer 1

plants and other organisms convert light energy into chemical energy using carbon dioxide and water to produce oxygen and glucose.

Question 2

photosynthesis equation

Answer 2

6CO2 + 6H2O = C6H12O6 + 6O2

Question 3

nitrogen fixation

Answer 3

nitrogen fixed into other forms
takes atmospheric oxygen into ammonia and ammonium.

Question 4

nitrification

Answer 4

ammonia and ammonium are oxidized into nitrate and nitrite

Question 5

denitrification

Answer 5

converts nitrates and nitrites back into atmospheric nitrogen.

Question 6

cellular respiration

Answer 6

process where cells extract energy from glucose and other nutrients to power cellular activities

Question 7

cellular respiration equation

Answer 7

6 CO2 (carbon dioxide) + 12 H2O (water) + light —> C6H12O6 (glucose) + 6 H2O (water) + 6 O2 (oxygen)2

Question 8

What type of organisms perform the processes of photosynthesis and cellular respiration

Answer 8

Both photosynthesis and cellular respiration are performed by plants, certain algae, and some bacteria like cyanobacteria. Plants and algae are capable of both processes, while some bacteria only perform photosynthesis or cellular respiration.