Patrick Paralyzed

Patrick Paralyzed

Multiple Choice

What could be responsible for Patrick's loss of mobility?

• A: His nervous system is not functioning properly.

• B: His muscles are not functioning properly.

• C: He cannot efficiently break down food for energy.

• D: All of the above are possible causes.

Multiple Choice

Which of the following processes require energy?

• creating ion gradients across membranes

• muscle shortening

• protein synthesis

• all of the above

Multiple Choice

The high energy phosphate bond in ATP is ________ and _______ energy to break the bond

• easy to break; releases

• hard to break; requires

• easy to break; requires

• hard to break; releases

Multiple Choice

What would happen if Patrick lost his ability to make ATP?

• his muscles would not be able to contract

• His neurons would not be able to conduct electrical signals

• Both A and B

Multiple Choice

Which statement about enzymes is correct?

• enzymes are always proteins

• enzymes are consumed in a reaction

• enzymes are always active

• all are correct

• none are correct

Multiple Choice

In competitive inhibition …

molecule.

• A: the inhibitor competes with the normal substrate for binding to the enzyme’s active site.

• B: an inhibitor permanently inactivates the enzyme by combining with one of its functional groups.

• C: the inhibitor binds with the enzyme at a site other than the active site.

• D: the competing molecule’s shape does not resemble the shape of the substrate

Multiple Choice

Consider the following metabolic pathway:

If the enzyme responsible for converting A to C was mutated and nonfunctional, what would happen?

• A: A levels would increase; B, C, and D levels would decrease.

• B: A and B levels would increase; C and D levels would decrease.

• C: A, B and C levels would increase; D levels would decrease.

• D: A, B, C, and D levels would all decrease.

Multiple Choice

Consider the following metabolic pathway:

If Patrick’s enzyme responsible for converting pyruvate to acetyl CoA was inhibited, what would happen?

• A: Pyruvate levels would increase; acetyl CoA and lactate levels would decrease.

• B: Pyruvate and lactate levels would increase; acetyl CoA levels would decrease.

• C: Pyruvate, acetyl CoA, and lactate levels would increase.

• D: Pyruvate, acetyl CoA, and lactate levels would all decrease.

Multiple Choice

Why did Patrick become paralyzed?

• A: He inherited a genetic disease that resulted in the partial loss of an enzyme necessary for aerobic breakdown of glucose.

• B: The enzyme that is necessary for metabolizing fats was defective.

• C: He was unable to synthesize muscle proteins due to defective ribosomes.

• D: He suffered from a severe ion imbalance due to a high salt diet.

Multiple Choice

Which foods can be metabolized to generate Acetyl-Co-enzyme A?

• Carbs

• fats

• proteins

• Both carbs and Fats

• Carbs, Fats and Proteins

Multiple Choice

Dichloroacetate (DCA) administration would lead to …

• A: Increased production of acetyl CoA.

• B: Decreased lactate accumulation.

• C: Increased ATP production.

• D: All of the above.

Multiple Choice

The loss of which of the following molecules was the most critical for Patrick’s paralysis?

• A: Pyruvate dehydrogenase

• B: Acetyl CoA

• C: Lactate

• D: ATP