Biochemical Cycles

Question 1

Biochemical cycles.

Answer 1

The movement of a particular chemical through the biological and geographical or living and non living parts of the ecosystem.

Question 2

The elements important to life that are recycled are.

Answer 2

Water oxygen carbon nitrogen and phosphorus.

Question 3

The carbon cycle.

Answer 3

Biological processes such as photosynthesis respiration and decomposition take up and release carbon and oxygen during the carbon cycle.

Question 4

Biosphere

Answer 4

Life

Question 5

Lithosphere

Answer 5

Rock & Soil

Question 6

Hydrosphere

Answer 6

Water

Question 7

Atmosphere

Answer 7

Air

Question 8

Cellular respiration.

Answer 8

Movement of carbon from living things to the atmosphere

Question 9

Photosynthesis

Answer 9

Movement of carbon from the atmosphere to the biosphere.

Question 10

Combustion

Answer 10

Movement of carbon from coal (lithosphere) to the atmosphere.

Question 11

Decomposition

Answer 11

Carbon from piving things breaking down down into the soil (lithosphere)

Question 12

What do all organisms require to make proteins

Answer 12

Nitrogen (to make amino acids, then make protein)

Question 13

What do all organisms require to make amino acids

Answer 13

Nitrogen

Question 14

Our atmosphere is ____% nitrogen gas

Answer 14

78

Question 15

What form is nitrogen most commonly found in

Answer 15

N
2

Question 16

In the nitrogen cycle what process allows N2 to be directly used by plants

Answer 16

Nitrogen fixation

Question 17

Bacteria and lightning are responsible for

Answer 17

Nitrogen fixation

Question 18

Nitrification

Answer 18

Nitrogen in the soil is converted to nitrates/nitrites by nitrifing bacteria

Question 19

Assimilation

Answer 19

Plants use the nitrates/nitrites from nitrification

Question 20

Denitrification

Answer 20

Turns the soil nitrates back to N2 gas

Question 21

In the nitrogen cycle, decomposition turns nitrogen into _______ (and the name)

Answer 21

Ammonia, ammonification

Question 22

Why is phosphorus important?

Answer 22

It helps form important molecules like DNA and RNA.

Question 23

Where is phosphorus found?

Answer 23

Biosphere cycles among the land ocean settlements and living organisms.

Question 24

What is the rate of the phosphorus cycle (fast or slow?)

Answer 24

Slow

Question 25

Why is the phosphorus cycle slow

Answer 25

Phosphorus does not naturally occur in the app. It rarely occurs as a gas.

Question 26

Phosphorus examples

Answer 26

During erosion, small amounts of phosphorus dissolve as phosphate in soil and water From waste from organisms Released by decomposers from dead organisms

Question 27

How do plants get phosphorus

Answer 27

From soil and water through their roots

Question 28

The water cycle.

Answer 28

Water moves between the ocean atmosphere and land.

Question 29

Evaporation.

Answer 29

Add water as vapor to atmosphere through heat.

Question 30

Transpiration

Answer 30

Water evaporates from the leaves of plants

Question 31

Condensation.

Answer 31

Water vapor cools and condenses back into liquid droplets

Question 32

Precipitation.

Answer 32

Water Water release from the atmosphere.

Question 33

Percolation

Answer 33

Groundwater flow

Question 34

On slide 12, label the water cycle

Answer 34

A- Evaporation B- Transpiration C- Percolation D- Precipitation E- Precipitation

Question 35

On slide 13, label the letters

Answer 35

A- transpiration B- evaporation C- condensation D- precipitation

Question 36

Which material cycle relies least on the processes of photosynthesis, transpiration, evaporation, respiration, and condensation?

Answer 36

nitrogen cycle

Question 37

On slide 14, label the diagram

Answer 37

A- Photosynthesis by producers B- Plant respiration C- Animal respiration D- Carbon fixation by consumers E- Decomposition F- Fossil fuels and fossils G- Fossil fuel combustion H-

Question 38

Which statement correctly describes how nitrogen in the soil returns to the atmosphere?

Answer 38

Soil bacteria convert nitrates into nitrogen gas.

Question 39

How do nitrogen-fixing bacteria help cycle nitrogen through ecosystems?

Answer 39

They capture nitrogen from the atmosphere and convert it into forms that plants can use.