Chapter 9 HW

What is the molecule labeled "2"?

carbon dioxide

The energy stored in ATP comes from which of the following?

food molecules

In oxidative phosphorylation, energy for the synthesis of ATP is directly obtained from the

movement of hydrogen ions through channels in the inner mitochondrial membrane.

What is the molecule labeled "1"?

pyruvate

Alcohol is a toxic substance. Which organs are most affected by excessive alcohol use?

stomach, liver, brain

How is ATP used in our bodies?

The energy released from ATP is converted into kinetic energy to do work.

Growth and repair involve primarily what type of reactions?

anabolic

What is the molecule labeled "3"?

NADH

Oxygen is an important molecule in which of the following?

citric acid cycle and ETS

The energy produced from aerobic metabolism comes from what two sources? (Figure 25-5)

citric acid cycle and the electron transport chain

Which of the following occurs when water is released (lost) during a reaction?

dehydration synthesis

Most of the ATP from metabolism is produced in the

electron transport system

During the citric acid cycle, both NAD and FAD ________ a hydrogen atom and become ________.

gain; reduced

Although other nutrients can feed into the citric acid cycle, ________ yields energy the quickest.

glucose

The carbon dioxide released by the lungs into the atmosphere was very likely produced within __________.

the citric acid cycle