AP Bio Glycolysis

Where does glycolysis take place?

• Chloroplast

• Cytosol

• Mitochondria

• Nucleus

Glycolysis is the first step in cellular respiration and is a complex process. Which of the following is NOT true about glycolysis?

• Glycolysis begins with a single glucose molecule and produces two pyruvate molecules

• Glycolysis is an anaerobic process

• Glycolysis is a ten step process

• Glycolysis is energy independent and does not require any energy to take place.

Answer explanation

Glycolysis does require energy in the form of 2 ATP in the first process. The second half does not require energy.

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NGSS.HS-LS1-7

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How does an enzyme speed up the chemical reaction?

• Decrease the activation energy required

• Decrease the change in free energy

• Increase the activation enzyme required

• Increase the change in free energy

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NGSS.HS-PS1-4

Glycolysis occurs in the

• mitochondria of all cells

• cytoplasm of all cells

• mitochondria of eukaryote cells only

• cytoplasm of eukaryote cells only

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NGSS.HS-LS2-3

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How many ATP molecules are formed in glycolysis

• 2

• 4

• 6

• 8

Which metabolic pathway is common to both fermentation and cell respiration of a glucose molecule?

• the citric acid cycle

• the electron transport chain

• the reduction of pyruvate to lactate

• glycolysis

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NGSS.HS-LS2-3

Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?

• electron transport

• glycolysis

• chemiosmosis

• the citric acid cycle

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NGSS.HS-LS2-3

In addition to ATP, what are the end products of glycolysis?

• CO2 and H2O

• CO2 and pyruvate

• NADH and pyruvate

• CO2 and NADH

The catabolic process that involves the partial degradation of sugar without oxygen is called

• fermentation

• photosynthesis

• Krebs cycle

• oxidative phosphorylation

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NGSS.HS-LS2-3

Each electron in cell respiration travels along with a

• hydroxide ion

• electron

• oxygen

• hydrogen atom (proton)