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Exam (elaborations) NUTR641: Nutritional Biochemistry I (D01) (NUTR641) Quiz: Basic Concepts of Cellular Transport and Signaling {Answered}$13.99
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Quiz: Basic Concepts of Cellular Transport and Signaling: NUTR641: Nutritional Biochemistry I (D01)
Quiz: Basic Concepts of Cellular Transport and Signaling
Score for this attempt: 80 out of 80
Q
uestion 1
2 / 2 pts
regulatory subunits; two active monomers and two inactive monomers
activ...
8/27/24, 2:42 PM Quiz: Basic Concepts of Cellular Transport and Signaling: NUTR641: Nutritional Biochemistry I (D01)
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Quiz: Basic Concepts of Cellular Transport and Signaling
Due Aug 16 at 11:59pm
Points 80
Questions 37
Time Limit 90 Minutes
Allowed Attempts 2
Instructions
The quiz:
Covers the Textbook material from Module 8: Week 8.
Contains 35 multiple-choice and 2 short answer questions.
Is limited to 1 hour and 30 minutes.
Allows 2 attempts.
Is worth 80 points.
Submit this assignment by 11:59 p.m. (ET) on Friday of Module 8: Week 8.
TAKE THE QUIZ AGAIN
Attempt History
Attempt Time Score
LATEST Attempt 1 82 minutes 80 out of 80
Correct answers are hidden.
Score for this attempt: 80 out of 80
Submitted Aug 11 at 6:36pm
This attempt took 82 minutes.
Question 1
pts
cAMP binds to the ________ subunits of protein kinase A allowing the tetramer to dissociate into ________.
regulatory subunits; two active monomers and two inactive monomers
active subunits; two active monomers and an inactive dimer
regulatory subunits; an active dimer and two inactive monomers
active subunits; an active dimer and two inactive monomers
regulatory subunits; two active monomers and an inactive dimer
Question 2
pts
The ________ receptor is a receptor tyrosine kinase.
α1-adrenergic
calmodulin
β2-adrenergic
insulin
cortisol
Question 3
This source
study pts was downloaded by 100000891127392 from CourseHero.com on 09-20-2024 14:45:18 GMT -05:00
, 8/27/24, 2:42 PM Quiz: Basic Concepts of Cellular Transport and Signaling: NUTR641: Nutritional Biochemistry I (D01)
Which amino acid in the aquaporin channel hydrogen bonds with water to prevent the movement of protons?
Ile
Leu
Phe
Val
Asn
Question 4
pts
Which of the following is (are) an advantage(s) of protein phosphorylation regarding biochemical signaling?
I. Phosphorylation is rapid and specific.
II. Phosphorylation is enzymatically reversible.
III. Phosphorylation can be amplified by cascade systems.
IV. Phosphorylation results in covalent modification of enzymes and proteins.
III only
I, II, III, IV
II, III, IV
II, III
I, II
Question 5
pts
Which of the following occurs during the fusion of a synaptic vesicle and cell membrane?
selective removal of acyl chains from membrane phospholipids allows the bilayer to bow outward
the composition of the two membranes has no effect upon the rate of fusion
addition of triacylglycerols to the membrane allows the bilayer to bow inward
SNARE complexes dissociate to allow membrane fusion to occur
none of the above
Question 6
pts
The activity of protein kinase A is affected by which of the following?
I. activated adenylate cyclase
II. levels of cAMP
III. phosphodiesterases
II only
I, II, and III
III only
I only
I and II
Question 7
pts
Which of the following is a ligand of the β2-adrenergic receptor?
adenosine
This study source was downloaded by 100000891127392 from CourseHero.com on 09-20-2024 14:45:18 GMT -05:00
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