B4

Question 1

Why is recycling nutrients important for all living organisms?

Answer 1

It provides the nutrients that living organisms use to grow and reproduce

Question 2

What is the process where water evaporate from plants

Answer 2

transpiration

Question 3

What is the technical term for rain

Answer 3

precipitation

Question 4

What is Infiltration

water cycle

Answer 4

water that has fallen as precipitation is absorbed into the ground

Question 5

What is the water cycle

Answer 5

• water evaporates from the earth turning into water vapour
• The vapour then condenses into clouds
• The water then falls as precipiation
• The water then either infilrates into the ground or flows towards lower ground as surface run off

Question 6

Which process in the carbon cycle removes carbon dioxide from the atmosphere?

Answer 6

Photosynthesis

Question 7

What is the order of the carbon cycle

Answer 7

• Carbon enters the atmosphere as carbon dioxide from respiration and combustion
• Carbon dioxide is absorbed by producers to make carbohydrates in photosynthesis.
• Animals feed on plants, passing the carbon compounds along the food chain. Most carbon they consume is exhaled as carbon dioxide during respiration. The animals and plants eventually die.
• Dead organisms are eaten by decomposers and carbon in their bodies is returned to the atmosphere as carbon dioxide. In some conditions decomposition is blocked. The plant and animal material may then be available as fossil fuel in the future for combustion.

Question 8

Do all cells contain carbon

Answer 8

Yes because carbon is in glucose

Question 9

What ways is carbon realsed into the atmosphere

Answer 9

• Organisms dying
• Combustion

Question 10

How is carbon dioxide removed from the atmosphere

Answer 10

• Photosynthesis

Question 11

Which organisms decompose dead organic matter?

Answer 11

• bacteria
• fungi

Question 12

What is decomposition

Answer 12

the process by which dead organic matter is broken down into simpler organic or inorganic substances, such as carbon dioxide, water, simple sugars, and minerals.

Question 13

Why is decomposition important

Answer 13

It recycles of elements throughout an ecosystem

Question 14

What two organisms decompose

Answer 14

• detritus feeders (detritivores),
• decomposers.

Question 15

What are Detritus feeders

Answer 15

small animals like worms and woodlice that feed on dead organic matter.

Question 16

What are Decomposers

Answer 16

Microorganisms, such as bacteria and fungi.

Question 17

What factors effect the rate of decomposition

Answer 17

• oxygen availablity
• Tempurature
• Water content

Question 18

How does oxygen effect decomposition rates

Answer 18

• Higher oxygen
• more aerobic respiration
• more energy available
• faster growth and decomposition

Question 19

How does tempurature effect decomposition rates

Answer 19

• Higher temperature
• particles have more kinetic energy & enzymes are closer to optimum temperature
• higher rate of reactions
• more decomposition

Question 20

What happens to decomposition rates if the tempurature is to high

Answer 20

Enzymes will denatures and the rate of decomposition will decreace