18 Questions
What percentage of the energy having Photosynthetically Active Radiation is typically used by plants for the process of photosynthesis?
2-10 percent
In what form is the energy stored in various organic products in plants during photosynthesis?
Chemical energy
What happens to the energy when it is converted into heat during the process of energy flow in the ecosystem?
Energy is lost from the ecosystem
Which consumers receive energy directly from the primary producers in a food chain?
Primary consumers
What law states that only about 10 percent of the energy is transferred to each trophic level in a food chain?
10 Percent Law
Which organelle in plants is responsible for absorbing sunlight for the process of photosynthesis?
Chloroplasts
What is the main source of energy required by all living organisms in an ecosystem?
Chemical energy of food
Which law of thermodynamics states that energy can neither be created nor destroyed, only changed from one form to another?
Second law of thermodynamics
What is the term used to describe the radiation from the sun that can be used by plants for photosynthesis?
Effective radiation
What happens to most of the sun's radiation that falls on Earth?
It is reflected back into space by the atmosphere
What term is used to describe each level within a food chain?
Trophic level
Which law of thermodynamics states that as energy is transferred, more and more of it is wasted?
Second law of thermodynamics
What percentage of energy is typically transferred from one trophic level to the next?
90%
Which trophic level represents the primary consumers in an ecosystem?
Herbivores
What is the ultimate source of energy on Earth?
Sun
What process do plants utilize to convert light energy into chemical energy?
Photosynthesis
What are the scavengers responsible for in the food chain?
Breaking down dead matter
What do reducers do after absorbing constituents from dead matter in the food chain?
Release molecules back to the environment
Explore the process of photosynthesis and energy flow in ecosystems. Learn about the role of plants as producers and how energy is transferred through food chains and food webs.
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