Biology Quiz on Cellular Processes

How do the directions of energy flow in photosynthesis and cellular respiration compare?

• They are the same

• They go in completely opposite directions

• They do not involve energy

• They happen at the same time in the same direction

Glycolysis is the ------------------- in cellular respiration.

• First stage

• Second stage

• Third stage

• Fourth stage

After glycolysis is complete, what is the total ATP gain for the cell?

• 1 molecule

• 2 molecules

• 8 molecules

• 40 molecules

During glycolysis, which molecule temporarily holds high-energy electrons?

• FAD2+

• Hydrogen

• Carbon Dioxide

• NADH

In which part of the cell does the Krebs cycle occur?

• Cell wall

• Ribosome

• Inner mitochondrial membrane

• Mitochondrial matrix

------------------------- converts into acetyl-CoA before entering the kerb’s cycle.

• ATP

• Proteins

• Pyruvic acid

• Citric acid

Carbon dioxide is the gas released during the conversion of pyruvic acid.

• True

• False

Citric acid is the molecule formed when acetyl-CoA combines with a --------------- in the Krebs cycle?

• 2-carbon compound

• 3-carbon compound

• 4-carbon compound

• 5-carbon compound

What are the two main electron carriers made during the Krebs cycle?

• ATP and ADP

• Proteins and NADH

• NADH and FADH₂

• Oxygen and Carbon dioxide

Where does the electron transport chain take place?

• Cytoplasm

• Mitochondrial matrix

• Inner mitochondrial membrane

• Nucleus