Question 31 pts

During which cellular process is ATP NOT released?

 

Calvin cycle

 

Krebs cycle

 

 

glycolysis

 

electron transport chain

 

Question 61 pts

In the enzyme-catalyzed reaction where A = (Enzyme 1) → B → (Enzyme 2) → C → (Enzyme 3) → D, what will be the effect of inactivating Enzyme 2?

 

B, C, and D will all still be produced.

 

B and C will still be produced, but not D.

 

 

B will still be produced, but not C or D.

 

A will still be produced, but not B, C, or D.

 

Question 71 pts

Metabolic reactions that break down complex molecules into smaller compounds, thereby releasing usable energy for the cell, are best described as

 

catabolic.

 

anabolic.

 

 

photosynthetic.

 

enzymatic.

 

Question 81 pts

One strategy that makes metabolic pathways more efficient is:

 

enzymes for a given pathway are located in the same place within the cell.

 

all of the reactions use the same substrate.

 

 

all of the reactions use the same enzyme.

 

enzymes for a pathway are separated into different organelles.

 

Question 91 pts

Oxidative phosphorylation is to respiration as ________ is to photosynthesis.

 

carbon fixation

 

the splitting of H₂O

 

 

the light-dependent reaction

 

the reduction of NADPH

 

Question 111 pts

The molecule ________ is produced to store energy and is broken down in order to use that energy for cellular processes.

 

DNA

 

ATP

 

 

oxygen

 

water

 

 

Question 131 pts

The ultimate source of energy for living systems is:

 

glucose.

 

oxygen.

 

 

sunlight.

 

carbon dioxide.

 

Question 141 pts

What kind of reaction is shown here?

 

Click to view larger image.

 

anabolic

 

catabolic

 

 

respiration

 

photosynthesis

 

Question 151 pts

Which of the following are logically associated with mitochondria?

 

Krebs cycle

 

Calvin cycle

 

 

chlorophyll

 

thylakoid

 

Question 161 pts

Which of the following represents the correct ordering of events that occur during the catabolism of glucose in the presence of O₂?

 

glycolysis; Krebs cycle; oxidative phosphorylation

 

glycolysis; oxidative phosphorylation; Krebs cycle

 

 

oxidative phosphorylation; Krebs cycle; glycolysis

 

glycolysis; fermentation

 

Question 191 pts

Which of the following statements about enzymes is FALSE?

 

Enzymes are reusable.

 

Enzymes are generally proteins.

 

 

Enzymes speed up chemical reactions.

 

A specific enzyme can catalyze a variety of chemical reactions.

 

 

Question 211 pts

Which of the following ultimately provides the O₂ used during the process of oxidative phosphorylation?

 

light reactions of photosynthesis

 

Calvin cycle of photosynthesis

 

 

Krebs cycle

 

carbon fixation

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