Cellular Respiration

Which of the following is not part of cellular respiration?

• Krebs Cycle

• Glycolysis

• ETC

• Calvin Cycle

Cellular respiration takes place in two stages:

• glycolysis and fermentation

• Stage 1 and Stage 2 of photosynthesis

• glycolysis, then aerobic respiration

• aerobic respiration, then glycolysis

At the end of the electron transport chain,

• the electrons combine with oxygen and protons to form water

• the electrons are used in the formation of ethyl alcohol

• the electrons build up inside the mitochondria and diffuse back to a thylakoid

• none of the above

In cellular respiration, a two-carbon molecule combines with a four-carbon molecule to form citric acid as part of

• The Krebs Cycle

• Glycolysis

• Calvin Cycle

• Electron Transport Chain

You have been growing some animal cells in culture. The cells grow well for several weeks, and then their growth slows down. You conduct some tests and determine that there is a lot of lactic acid in the culture fluid. Which of the following is the most likely explanation for the poor growth of the cells?

• There is not enough carbon dioxide in the culture fluid.

• There is not enough oxygen in the culture fluid.

• There is too much oxygen in the culture fluid.

C6 H12O6 + 6O2 + ADP + P --> 6CO2 + 6 H2O + ATP

The equation above summarizes the process known as

• Cellular Respiration

• Photosynthesis

C6 H12O6 + 6O2 + ADP + P  6CO2 + 6 H2O + MOLECULE A

What is known as 'molecule a' in the equation?

• ADP

• NAD+

• NADH

• ATP

C6 H12O6 + 6O2 + ADP + P  6CO2 + 6 H2O + ATP

The process shown in the equation above begins in the cytoplasm of a cell and ends in the

• Cytosol

• Golgi Body

• Mitochondria

• Smooth ER

When cells break down food molecules, energy

• is released all at once

• is released entirely as body heat into the environment

• is temporarily stored in ATP molecules

• causes excitation of electrons in chlorophyll molecules

Acetyl coenzyme A

• is formed from the breakdown of pyruvic acid

• enters the Krebs cycle

• All of the answers provided

• can be used in synthesis of needed molecules