AP Unit 3 Review (Cell Respiration & Photosynthesis)

Why is cell respiration considered an EXERGONIC / CATABOLIC process?

• The reactants (glucose) have more chemical potential energy than the products (H2O, ATP etc)

• The reactants (glucose) have less chemical potential energy than the products (H2O, ATP etc)

• Chemical bonds are constructed during RedOx

• Enzymes are required to facilitate the chemical reactions of glycolysis and the citric acid cycle

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Why is photosynthesis considered an ENDERGONIC / ANABOLIC process?

• The reactants (H2O and CO2) have more chemical potential energy than the products (G3P)

• The reactants (H2O and CO2) have less chemical potential energy than the products (G3P)

• Chemical bonds are destructed during RedOx

• Enzymes are required to facilitate the chemical reactions of the light-dependent reactions and the Calvin cycle

Tags

NGSS.HS-LS1-5

Where, in a eukaryotic cell, does GLYCOLYSIS take place?

• Matrix of a mitochondria

• Intermembrane space of a mitochondria

• Inner membrane of a mitochondria

• Cytoplasm of the cell

Where, in a prokaryotic cell, does GLYCOLYSIS take place?

• Within the cell membrane

• Within a ribosome

• Outside of the cell

• Cytoplasm of the cell

Tags

NGSS.MS-LS1-7

Where, in a eukaryotic cell, does the CITRIC ACID CYCLE take place?

• Matrix of a mitochondria

• Intermembrane space of a mitochondria

• Inner membrane of a mitochondria

• Cytoplasm of the cell

Where, in a eukaryotic cell, does the ELECTRON TRANSPORT CHAIN take place?

• Matrix of a mitochondria

• Intermembrane space of a mitochondria

• Inner membrane of a mitochondria

• Cytoplasm of the cell

Why is CELL RESPIRATION considered an AEROBIC process?

• All reactions require oxygen

• Cell respiration only takes place when oxygen is available

• The maximum quantity of ATP is produced when oxygen is available

• It is an ancient metabolic pathway that predates atmospheric oxygen

Answer explanation

Remember, only glycolysis is anaerobic and produces just 2 ATP. The citric acid cycle and the ETC are both aerobic and produce 30 ATP.

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NGSS.HS-LS2-3

What is the primary function of NADH and FADH2?

• They are enzymes responsible for catalyzing the chemical reactions of the citric acid cycle

• They are responsible for carrying electrons from glucose to the ETC

• They store energy in their chemical bonds

• They generate massive amounts of ATP as they follow their energy gradient

Tags

NGSS.HS-LS1-7

Which products are considered the "exhaust" or the waste of cell respiration?

• H2O and CO2

• ATP and H2O

• NADH and FADH2

• O2 and ATP

Tags

NGSS.HS-LS1-7

What is the overall GOAL of glycolysis?

• To make ATP

• To make NADH

• To make H2O

• To split glucose and make pyruvate