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Quiz: Protein Structure and Function: NUTR641: Nutritional Biochemistry I (D01) Score for this attempt: 80 out of 80 Latest Fall 2024/2025. $13.84   Añadir al carrito

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Quiz: Protein Structure and Function: NUTR641: Nutritional Biochemistry I (D01) Score for this attempt: 80 out of 80 Latest Fall 2024/2025.

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Quiz: Protein Structure and Function: NUTR641: Nutritional Biochemistry I (D01) Quiz: Protein Structure and Function Score for this attempt: 80 out of 80  Q uestion 1 2 / 2 pts hydrogen bonding disulfide bridges salt bridges the hydrophobic effect The quiz: Noncovalent forces that stab...

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8/19/24, 1:39 PM Quiz: Protein Structure and Function: NUTR641: Nutritional Biochemistry I (D01)


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Quiz: Protein Structure and Function
Due Jul 14 at 11:59pm
Points 80
Questions 40
Time Limit 90 Minutes
Allowed Attempts 2
Instructions

The quiz:

Covers the Textbook material from Module 3: Week 3.
Contains 40 multiple-choice 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 Sunday of Module 3: Week 3.

Attempt History
Attempt Time Score
KEPT Attempt 2 84 minutes 80 out of 80

LATEST Attempt 2 84 minutes 80 out of 80

Attempt 1 88 minutes 70 out of 80


 Correct answers are hidden.

Score for this attempt: 80 out of 80
Submitted Jul 29 at 4:18am
This attempt took 84 minutes.

Question 1
pts
Noncovalent forces that stabilize protein structure include all of the following except ________.
hydrogen bonding

disulfide bridges

salt bridges

the hydrophobic effect


https://canvas.liberty.edu/courses/634527/quizzes/3115997 1/13

, 8/19/24, 1:39 PM Quiz: Protein Structure and Function: NUTR641: Nutritional Biochemistry I (D01)

electrostatic interactions with metal ions


Question 2
pts
At a pH above its pKa, the phenolic group of tyrosine is ________.
protonated and neutral

protonated and positively charged

deprotonated and neutral

deprotonated and negatively charged

none of these choices


Question 3
pts
At a pH above its pKa, the R-group of Asp is ________.
protonated and neutral

protonated and positively charged

deprotonated and neutral

deprotonated and negatively charged

none of these choices


Question 4
pts
Chymotrypsin catalyzes the hydrolysis of a peptide bond and is therefore categorized as a
________.
transferase

lyase

hydrolase

oxidoreductase

ligase


Question 5
pts
Which of the following occurs in hemoglobin upon oxygen binding?


https://canvas.liberty.edu/courses/634527/quizzes/3115997 2/13

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