Photosynthesis and Energy Flow in Ecosystems

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What percentage of the energy having Photosynthetically Active Radiation is typically used by plants for the process of photosynthesis?

50-60 percent

10-20 percent

2-10 percent (correct)

30-40 percent

In what form is the energy stored in various organic products in plants during photosynthesis?

Kinetic energy

Mechanical energy

Heat energy

Chemical energy (correct)

What happens to the energy when it is converted into heat during the process of energy flow in the ecosystem?

Energy is converted back to light energy

Energy is stored in the ecosystem

Energy is absorbed by plants

Energy is lost from the ecosystem (correct)

Which consumers receive energy directly from the primary producers in a food chain?

Primary consumers Signup and view all the answers

What law states that only about 10 percent of the energy is transferred to each trophic level in a food chain?

10 Percent Law Signup and view all the answers

Which organelle in plants is responsible for absorbing sunlight for the process of photosynthesis?

Chloroplasts Signup and view all the answers

What is the main source of energy required by all living organisms in an ecosystem?

Chemical energy of food Signup and view all the answers

Which law of thermodynamics states that energy can neither be created nor destroyed, only changed from one form to another?

Second law of thermodynamics Signup and view all the answers

What is the term used to describe the radiation from the sun that can be used by plants for photosynthesis?

Effective radiation Signup and view all the answers

What happens to most of the sun's radiation that falls on Earth?

It is reflected back into space by the atmosphere Signup and view all the answers

What term is used to describe each level within a food chain?

Trophic level Signup and view all the answers

Which law of thermodynamics states that as energy is transferred, more and more of it is wasted?

Second law of thermodynamics Signup and view all the answers

What percentage of energy is typically transferred from one trophic level to the next?

90% Signup and view all the answers

Which trophic level represents the primary consumers in an ecosystem?

Herbivores Signup and view all the answers

What is the ultimate source of energy on Earth?

Sun Signup and view all the answers

What process do plants utilize to convert light energy into chemical energy?

Photosynthesis Signup and view all the answers

What are the scavengers responsible for in the food chain?

Breaking down dead matter Signup and view all the answers

What do reducers do after absorbing constituents from dead matter in the food chain?

Release molecules back to the environment Signup and view all the answers