Cells and Energy: Introduction to Energy Concepts
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Questions and Answers

What is the definition of energy?

The ability to do work or bring about change.

What is the significance of energy in living organisms?

Allows living things to carry out processes including growth, development, metabolism, and reproduction.

What is the ultimate source of energy for living organisms?

The sun.

What type of energy is associated with motion, such as muscular contractions?

<p>Kinetic energy.</p> Signup and view all the answers

What is the first law of thermodynamics?

<p>Energy cannot be created nor destroyed, but can be changed from one form to another.</p> Signup and view all the answers

What happens to the energy captured by plants from the sun?

<p>It is given off as heat.</p> Signup and view all the answers

What is the fundamental concept that energy cannot be created or destroyed, but can be changed from one form to another?

<p>The First Law of Energy</p> Signup and view all the answers

What is the energy lost as during energy conversion?

<p>Heat</p> Signup and view all the answers

What is the measure of disorder in a system, which increases with every energy conversion?

<p>Entropy</p> Signup and view all the answers

What is the type of energy stored in molecules, such as carbohydrates, glucose, and starch?

<p>Potential energy</p> Signup and view all the answers

What is the energy associated with motion, such as sunlight, sound, and a rolling ball?

<p>Kinetic energy</p> Signup and view all the answers

Why is a constant input of usable energy from food necessary to maintain order in a living system?

<p>To maintain order and organization</p> Signup and view all the answers

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