Conditions For Life On Earth

Question 1

What does most areas of earth having temps above 0 degrees mean?

Answer 1

Liquid water is present

Question 2

What range of temperature are enzymes found at?

Answer 2

0-40 degrees

Question 3

Why do enzymes require liquid water?

Answer 3

They use it as a solvent

Question 4

What ambient gas is used in photosynthesis and climate control?

Answer 4

Carbon Dioxide

Question 5

What ambient gas is used in protein synthesis?

Answer 5

Nitrogen

Question 6

Define Ambient Gases

Answer 6

The surrounding environmental gases that are available to organisms

Question 7

What does daily rotation of the earth control?

Answer 7

The duration of day and night and therefore range of temperatures

Question 8

What does the tilted axis of the earth provide?

Answer 8

Seasonal variations

Question 9

Why has the concentration of oxygen in the atmosphere decline since the presence of life?

Answer 9

It has reacted with other elements

Question 10

What does the continued presence of oxygen in the atmosphere rely on?

Answer 10

Processes that continually replace it as other processes remove it

Question 11

What is carbon dioxide naturally released into the atmosphere by?

Answer 11

Volcanoes

Question 12

What are the main functions and processes of water? (6)

Answer 12

Physiological Solvent 
Transport 
Temperature Control
Anomalous Expansion on Freezing
High Specific Heat Capacity 
Provision of Aquatic Habitats