Understanding Biology

Kenneth A. Mason, Tod Duncan, George B. Johnson

Chapter 7 How Cells Harvest Energy - all with Video Answers

Educators

Section 1

Cells Harvest Energy from Organic Compounds by Oxidation

01:13

Problem 1

What is the purpose of cellular respiration?
a. To get $\mathrm{O}_{2}$ into our bodies and to get $\mathrm{CO}_{2}$ out of our bodies
b. To use the energy of sunlight to synthesize sugars
c. To make ATP to power cellular activities
d. To hydrolyze ATP

Joanna Quigley

Numerade Educator

01:04

Problem 2

In redox reactions,
a. protons are transferred from one molecule to another.
b. one substance loses electrons and the other gains electrons.
c. a substance that loses electrons is reduced, while a substance that gains electrons is oxidized.
d. Both $\mathrm{b}$ and $\mathrm{c}$ are correct

Joanna Quigley

Numerade Educator