Understanding Photosynthesis and Cellular Respiration

What percentage of the world's biomass do plants constitute?

• About 95%

• About 20%

• About 50%

• About 80%

What is the primary energy source for photosynthesis?

• Atmospheric gases

• Sunlight

• Water

• Soil nutrients

Tags

NGSS.MS-LS1-6

Which process in plants involves converting energy from the sun into chemical energy?

• Photosynthesis

• Cellular respiration

• Chlorophyll production

• Mitosis

Tags

NGSS.MS-LS1-6

Which component is not a direct input in the light-dependent reactions of photosynthesis?

• Chlorophyll

• Carbon dioxide

• Water

• Sunlight

Tags

NGSS.MS-LS1-6

What is the primary purpose of the light-independent reactions in photosynthesis?

• To produce oxygen

• To convert CO2 into glucose

• To split water molecules

• To capture sunlight

Tags

NGSS.MS-LS1-6

Which organelle is known as the powerhouse of the cell?

• Endoplasmic reticulum

• Ribosome

• Nucleus

• Mitochondrion

Tags

NGSS.MS-LS1-2

What is the main difference between aerobic and anaerobic respiration?

• Production of glucose

• Release of carbon dioxide

• Absorption of light

• Use of oxygen

What byproduct is produced during aerobic respiration?

• ATP

• Oxygen

• Carbon dioxide

• Glucose

What is the less efficient form of respiration that occurs when oxygen is scarce?

• Aerobic respiration

• Anaerobic respiration

• Photosynthesis

• Fermentation

How do biofuels impact the carbon cycle differently than fossil fuels?

• They release recently absorbed CO2

• They increase atmospheric CO2

• They do not release CO2

• They release older carbon

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5