QuizMaster

Question: The multistep pathways of metabolism are efficient because they
[A].

locate all of the enzymes for a pathway in the same place within the cell

[B].

use the same substrate for all of the enzymes in the pathway

[C].

use the same enzyme for all of the substrates in the pathway

[D].

spread the enzymes for a pathway into several different organelles

Answer: Option A

Explanation:

No answer description available for this question.

Question: The production or break down of __________ is often coupled with the metabolic reactions of biosynthesis and catabolism.
[A].

aspirin

[B].

DNA

[C].

ATP

[D].

CO2

Answer: Option C

Explanation:

No answer description available for this question.

Question: Which of the following statements about the energy needs of cells is false?
[A].

Without a continuous input of energy, cell disorder will increase

[B].

The laws of thermodynamics force cells to acquire energy

[C].

Many cellular reactions have an associated activation energy

[D].

The most usable energy for cells comes from the rapid combustion of glucose

Answer: Option D

Explanation:

No answer description available for this question.

Question: What is the consensus N-glycosylation site in a protein sequence?
[A].

Asn-Xaa-(Ser or Thr)

[B].

(Ser or Thr)-Asn-Ala

[C].

Thr-(Asn or Gln)-Ala

[D].

None of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: What is the cause of the genetic disease known as Galactosemia?
[A].

Deficiency in lactase

[B].

Absence of galactose 1-P uridyl transferase

[C].

Absence of lactose synthetase

[D].

Non functioning of semnase

Answer: Option B

Explanation:

No answer description available for this question.

Question: Which of the following is not a disaccharide?
[A].

Amylose

[B].

Cellobiose

[C].

Lactose

[D].

None of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: The ultimate source of energy that sustains living systems is
[A].

glucose

[B].

oxygen

[C].

sunlight

[D].

carbon dioxide

Answer: Option C

Explanation:

No answer description available for this question.

Question: Metabolic reactions that break down complex molecules into smaller compounds, thereby releasing usable energy for the cell, are best described as
[A].

biosynthetic

[B].

catabolic

[C].

catalytic

[D].

photosynthetic

Answer: Option B

Explanation:

No answer description available for this question.