The Carbon-Oxygen Cycle

Around __of the naturally occurring elements on Earth are essential for living organisms.

• 10

• 20

• 30

• 40

The most important of these ‘critical’ cycling nutrients are:

• Carbon, oxygen and Hydrogen

• Sulphur and Hyrdogen

• Phosohorous, Nitrogen, and Oxygen

• All of the above

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NGSS.MS-LS2-3

Nutrients are continuously ________ through the biosphere. These cycles are known as __________ or nutrient cycles.

• Biogeochemical, Recycled

• Recycled, Biogeochemical

• Discarded, Cycles of Critical Nutrient

• Cycles of Critical Nutrient, Discarded

Tags

NGSS.MS-LS2-3

Biogeochemical cycles include:

• Carbon-oxygen cycle

• Water Cycle

• Nitrogen Cycle

• Phosphorous Cycle

• All of the above

Tags

NGSS.MS-LS2-3

The carbon-oxygen cycle is largely driven by Earth’s _______

• Hydrosphere

• Atmosphere

• Biota

• Thermosphere

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False:

Carbon moves up the food chain through the consumption of organisms.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False:

Oxygen is inhaled by organisms and carbon dioxide is exhaled through respiration

• True

• False

Tags

NGSS.MS-LS2-3

What process/es are used in the flow of energy through ecosystems?

• Photosynthesis

• Photosynthesis and Cellular Respiration

• Cellular respiration

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the correct chemical equation for photosynthesis?

• C6H12O6 + 6O2 + 6H2O --> 12CO2+6H2O

• 6CO2+12H2O --> C6H12O6 + 6O2 + 6H2O

• 6CO2+12H2O --> C6H12O6 + 12O2 + 6H2O

• 6CO2+12H2O --> C12H6O2 + 6O + 6H2O

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Select all correct answers:

Organisms use __________ to breakdown glucose to generate energy to maintain their cellular functions.

________ and heat energy is a product of this process.

• Aerobic respiration, Anaerobic respiration

• Cellular Respiration, Chemical energy

• Chemical energy, Cellular Respiration

• Anaerobic respiration, Aerobic respiration

Tags

NGSS.MS-LS1-7