AP Biology Cellular Respiration

What does it mean to phosphorylate ADP?

• To add P, to ADP forming ATP and increasing the free energy of the molecule

• Removing a P, from ADP to become AMP and release energy

• ADP is being used to power other reactions

• ADP is being created by the reaction

Which process does not occur in aerobic (with oxygen) conditions?

• Fermentation

• Pyruvate Oxidation (Link Reaction)

• Citric Acid Cycle or Krebs cycle

• Oxidative Phosphorylation

How is cellular respiration related to photosynthesis?

• Both require oxygen to start

• It is the reverse reaction of photosynthesis

• Both start with glycolysis

• Both end with 38 ATP for cells

Which of the following statements are false?

• Glycolysis does not require oxygen

• Glycolysis is the first step in both anaerobic and aerobic respiration

• Glycolysis occurs in the mitochondria

• Glycolysis produces 2 ATP, 2 Pyruvates, and 2 NADH

What are the products of aerobic cellular respiration?

• ATP

• Carbon dioxide (CO2)

• Water

• All of the above

Glucose is broken down into pyruvate in a process known as 

• glycolysis
• electron transport
• the Krebs cycle
• phosphorylation

What is cellular respiration?

• the catabolism of glucose to transfer energy to ATP

• the breakdown of glucose to release NADH

• the breakdown of glucose to release FADH

• the breakdown of glucose to release carbon

The Electron Transport Chain (ETC) occurs across the ________ and so extra folds called ________ enable it to occur more often

• Mitochondrial matrix, villi

• Outer mitochondrial membrane, flagella

• Inner mitochondrial membrane, cristae

• Cytoplasm, endoplasmic reticulum

After strenuous exercise, a muscle cell would contain decreased amounts of ______ and increased amounts of ______ ____

• glucose; ATP

• ATP; glucose

• oxygen; lactic acid

• lactic acid; ATP

A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?

• As the cells run out of oxygen they switch to anaerobic respiration (fermentation), which allows the cell to make small amounts of ATP in the absence of oxygen.

• As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.

• The cells will never run out of oxygen if the weightlifter is breathing.

• As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP.