Energy In Living Systems
- 1.Energy is the capacity to do work.
- A.
True
- B.
False
- 2.Which of the following is part of the first law of thermodynamics?
- A.
Kinetic energy is stored energy.
- B.
Energy cannot be transferred or transformed.
- C.
Potential energy equals kinetic energy in a reaction.
- D.
Energy cannot be created or destroyed.
- 3.Energy in ecosystems
- A.
Flows in one direction from heterotrophs to autotrophs.
- B.
Is recycled by plants back to animals.
- C.
Flows in one direction from the sun to heat.
- D.
Is recycled by decomposers back to plants.
- 4.What is the ultimate source of energy for almost all forms of life on Earth?
- A.
Solar energy
- B.
Thermal energy
- C.
Heat energy
- D.
Nuclear energy
- 5.Which of the following statements below is correct?
- A.
Energy cannot be recycled throughout an ecosystem, but matter can.
- B.
Energy can be recycled throughout an ecosystem, but matter cannot.
- C.
Both energy and matter can be recycled throughout an ecosystem.
- D.
Neither energy or matter can be recycled throughout an ecosystem.
- 6.Kinetic energy is stored energy.
- A.
True
- B.
False
- 7.An object at rest has no ____ , but it may have _____ based on its location or structure.
- A.
Kinetic energy, conserved energy
- B.
Potential energy, kinetic energy
- C.
Kinetic energy, potential energy
- D.
Stored energy, potential energy
- 8.A rock on the top of a mountain has what kind of energy?
- A.
Kinetic
- B.
Potential
- C.
No
- D.
Conserved
- 9.Molecules that come from the food we eat provide energy for work that goes on inside our cells. This energy, stored inside of our food, is a form of ___.
- A.
Potential energy called chemical energy
- B.
Electrical energy called heat
- C.
Potential energy called entropy
- D.
Kinetic energy called heat
- 10.Organisms that cannot make their own food and must obtain energy from the foods they eat are called ___
- A.
Autotrophs
- B.
Heterotrophs
- C.
Plants
- D.
Matter
Questions: 10 | Attempts: 38832 | Last updated: Sep 3, 2020
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