Energy and Ecosystems Quiz

What process do plants use to convert chemical energy into thermal energy?

• Cellular respiration

• Photosynthesis

• Decomposition

• Fermentation

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

What is the last trophic level in a food chain?

• Decomposers

• Autotrophs (plants)

• Primary consumers

• Secondary consumers

What is the main role of decomposers in an ecosystem?

• Conversion of light energy into chemical

• Recycling chemical energy back into the soil

• Preying on other organisms

• Producing oxygen

Tags

NGSS.MS-LS2-3

If a plant receives 1000 joules of solar energy and uses only 2% for photosynthesis, how much energy is lost?

• 20 joules

• 200 joules

• 980 joules

• 1000 Joules

Tags

NGSS.MS-LS1-6

How might the removal of a trophic level (e.g., predators) affect an ecosystem?

• Increase the efficiency of energy transfer

• Ecological imbalance

• Minimize energy loss

• Increase the number of decomposers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

If energy neither created nor destroyed, but converted from form to another, what other forms can lost energy be converted to in the food chain?

• Kinetic energy

• Thermal energy

• Chemical energy

• All of the above

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NGSS.HS-LS2-3

NGSS.HS-LS2-4

NGSS.HS-PS3-2

What challenges might organisms face at the end of the food chain due to loss of energy?

• Lack of food

• Increased energy availability

• Improving the efficiency of energy transfer

• Increase the number of decomposers organisms

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which compound is the source of carbon in photosynthesis?

• Glucose

• Carbon dioxide

• Adenosine triphosphate (ATP)

• Water

Tags

NGSS.MS-LS1-6

Which of the following is directly involved in cellular respiration?

• Chloroplasts

• Mitochondria

• Ribosomes

• Nuclei

What is the primary purpose of the energy pyramid?

• To measure the biomass in an ecosystem

• Display the distribution of energy between different trophic levels

• Determine the number of individuals in each trophic level

• Studying interrelationships between species