4.2 Study Guide

Question 1

Nitrogen Fixation

Answer 1

Nitrogen (N) => Ammonia (NH3)

Question 2

Nitrification

Answer 2

Ammonia (NH3) => Nitrates (NO3)

Question 3

Denitrification

Answer 3

Nitrates (NO3) => Atmospheric Nitrogen Gas

Question 4

Photosynthesis Input/Output

Answer 4

Photosynthesis = Sunlight + CO2 => O2 + Sugar

Question 5

Cellular Respiration Input/Output

Answer 5

Cellular Respiration = O2 + Sugar => Energy + CO2 + H2O

Question 6

Organisms Performing Photosynthesis

Answer 6

Plants, Algae, Some Bacteria

Question 7

Organisms Performing Cellular Respiration

Answer 7

Plants, Animals, Humans, Fungi, Algae

Question 8

How Humans Affect Carbon Cycle

Answer 8

By burning fossil fuels, wood, etc. we release stored carbon into the atmosphere that absorb and release heat

Question 9

How Humans Affect Nitrogen Cycle

Answer 9

By making fertilizers and burning fossil fuels, the amount of nitrogen in ecosystems increases

Question 10

How does BTB work

Answer 10

Changes color as the pH of a liquid varies, when is reacted with acid the water changes from blue to yellow.

Question 11

Assimilation

Answer 11

Phosphorus enters the food chain