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Quiz about Biochemistry
Quiz about Biochemistry

Biochemistry Trivia Quiz


You find in this particular quiz questions on the very interesting and fun area of biochemistry. Most of the questions are on proteins, since they are in my opinion the most interesting.

A multiple-choice quiz by knight7se7en. Estimated time: 6 mins.
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Author
knight7se7en
Time
6 mins
Type
Multiple Choice
Quiz #
148,843
Updated
Dec 03 21
# Qns
10
Difficulty
Difficult
Avg Score
5 / 10
Plays
7791
Last 3 plays: Crowphale (4/10), Guest 172 (2/10), Guest 103 (4/10).
- -
Question 1 of 10
1. Which one of these macromolecules is the most complex of all macromolecules? Hint


Question 2 of 10
2. What is the only macromolecule whose monomers don't undergo dehydration to become long-chain polymers? Hint


Question 3 of 10
3. Give the single letter notation for any one of the polar neutral amino acids.

Answer: (One Letter)
Question 4 of 10
4. True Or False: A glycoprotein is mostly carbohydrate, and has very little protein.


Question 5 of 10
5. What enzyme do cows have that allows them to digest cellulose? Hint


Question 6 of 10
6. What type of non-covalent interaction contributes most to the stabilization of the secondary structure of proteins? Hint


Question 7 of 10
7. Oxidoreductases, isomerases, and lyases are three of the six classes of enzymes.


Question 8 of 10
8. Choose the correct description for an enzyme that has its associated coenzyme/cofactor. Hint


Question 9 of 10
9. True or False: Transition states are the formed structures (which don't include the product) in any given reaction. For example, in reaction A ----> B ----> C, B would be a transition state.


Question 10 of 10
10. Name the type of double bond that exists in any normal unsaturated or polyunsaturated fatty acid.

Answer: (one word, three letters)

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Most Recent Scores
Oct 27 2024 : Crowphale: 4/10
Oct 17 2024 : Guest 172: 2/10
Sep 22 2024 : Guest 103: 4/10
Sep 21 2024 : Guest 99: 4/10
Sep 07 2024 : Guest 96: 3/10
Sep 03 2024 : Guest 209: 4/10

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. Which one of these macromolecules is the most complex of all macromolecules?

Answer: proteins

Carbohydrates are the most abundant, nucleic acids are the largest, and lipids are the most diverse.
2. What is the only macromolecule whose monomers don't undergo dehydration to become long-chain polymers?

Answer: lipids

Lipids hold the distinction of having monomers called fatty acids that aggregate into fats, composed of three fatty acids and a glycerol molecule. CHO's, proteins and NA's all lose a water molecule to form a disaccharide/dipeptide/DNA molecules.
3. Give the single letter notation for any one of the polar neutral amino acids.

Answer: S

The polar neutral amino acids are Serine (Ser, S), Threonine (Thr, T), Tyrosine (Tyr, Y), Cysteine (Cys, C), Glutamine (Glu, Q), and Asparagine (Asp, N).
4. True Or False: A glycoprotein is mostly carbohydrate, and has very little protein.

Answer: False

A proteoglycan is mostly carbohydrate, and has very little protein. A glycoprotein is mostly protein, and has very little carbohydrate.
5. What enzyme do cows have that allows them to digest cellulose?

Answer: beta-amylase

Humans only possess alpha amylase, which can't break down cellulose (because it has a beta 1-4 linkage). This is why when we ate grass as children (if you attempted to anyways) it passed straight through your system and out, eventually into the toilet.
6. What type of non-covalent interaction contributes most to the stabilization of the secondary structure of proteins?

Answer: hydrogen bonding

Regardless of whether or not the secondary structure is a beta sheet or alpha helix, the two main portions of the peptide bond (the carbonyl portion and the amino portion) on different amino acids orient themselves so that so that the hydrogen of the amino portion on one amino acid hydrogen bonds to the oxygen of the carbonyl portion of another.

This essentially stabilizes the structure.
7. Oxidoreductases, isomerases, and lyases are three of the six classes of enzymes.

Answer: True

The six classes of enzymes are in order: 1) Oxidoreductases 2) transferases 3) Hydrolases 4) Lysases 5) Isomerases 6) Ligases
8. Choose the correct description for an enzyme that has its associated coenzyme/cofactor.

Answer: Holoenzyme

Enzymes with their associated cofactor/coenzymes are called holoenzymes, and enzymes without their associated cofactor/coenzymes are called apoenzymes.
9. True or False: Transition states are the formed structures (which don't include the product) in any given reaction. For example, in reaction A ----> B ----> C, B would be a transition state.

Answer: False

Transition states are actually the structures that exist for a very small period of time in between two intermediates (which are formed structures in a reaction pathway), the reactant and an intermediate or an intermediate and a product.
10. Name the type of double bond that exists in any normal unsaturated or polyunsaturated fatty acid.

Answer: cis

Source: Author knight7se7en

This quiz was reviewed by FunTrivia editor crisw before going online.
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