Chapter 8 Biology-Cellular respiration

How many steps of the citric acid cycle produce NADH?

3

During cellular respiration, the breakdown of carbohydrates, fats, and proteins releases energy for the synthesis of ...

ATP

Fermentation is anaerobic. What does anaerobic mean?

It occurs in the absence of oxygen

Human skeletal muscles can perform lactic acid fermentation. Why is this advantageous?

It provides us with ATP

Which of the following summarizes cellular respiration?

O2 + CH2O → H2O + CO2

Cellular respiration consumes _____ gas and releases _____ gas.

O2;CO2

Cellular respiration is a _____ process that requires oxygen, whereas fermentation is _____ because it occurs in the absence of oxygen.

aerobic; anaerobic

We exhale ________, which is produced during ___________.

carbon dioxide; the citric acid cycle.

Which of the following is NOT part of cellular respiration?

cytokinesis

What is reduction?

gain of electrons

Which of the following processes does not occur in mitochondria? A.)citric acid cycle B.)production of carbon dioxide C.)chemiosmosis D.)electron transport chain E.)glycolysis

glycolysis

During cellular respiration, what happens to oxygen?

it is reduced to form water

What is oxidation?

loss of electrons

According to the _____ concept, catabolism produces molecules that can also be used for anabolism of other compounds.

metabolic pool

The following are all made during cellular respiration EXCEPT: A.)oxygen B.)ATP C.)water D.)carbon dioxide

oxygen

Which of the following could NOT be made by fermentation?

oxygen

In addition to carbohydrates, what other molecules may cells use as energy sources?

proteins and fats

Most of the ATP made by mitochondria is produced by ...

the electron transport chain

What is the role of oxygen gas (O2) in cellular respiration?

the final electron acceptor