Biochemistry Quiz On Amino Acids And Proteins!
13 Questions
| Total Attempts: 1923
Biochemistry quiz on amino acids and proteins! The body needs specific nutrients so that it can function correctly, and proteins help a great deal. Amino acids are made from a combination of different compounds. When amino acids combine, they form proteins, and the body needs at least twenty amino acid groups to function properly. When you take this quiz, you will get a deeper understanding of these building blocks.
Questions and Answers
- 1.Fill in the gaps below: Proteins contribute to the cell in many ways. They work as #_____# to catalyze reactions. They can also work by interacting with RNA and DNA to control nucleic acids, e.g. #_________# factors. Lipid-bound proteins work as #_______# systems.
- 2.The monomeric unit of a protein is an _______________.
- 3.In an amino acid, what is the centre alpha-carbon bound to?
- A.
Amino group, carboxyl group, hydrogen atom, R group
- B.
Amino group, carboxyl group, hydrogen atom, A group
- C.
Amino group, hydroxyl group, hydrogen atom, R group
- D.
Amino group, hydroxyl group, hydrogen atom, A group
- 4.Which group in the amino acid varies, giving each amino acid individuality?
- A.
R group
- B.
Amino group
- C.
Carboxyl group
- D.
Hydrogen atom
- 5.If a molecule is 'chiral', it means it is identical to / indistinguishable from its mirror form.
- A.
True
- B.
False
- 6.Is the alpha carbon atom chiral?
- A.
Yes
- B.
No
- 7.Name the amino acid that does not have a mirror image.
- 8.In which form are amino acids found?
- A.
Laevus
- B.
Dexter
- C.
Option 3
- D.
Option 4
- 9.Complete the following sentence:Amino acids are _________, meaning they're a neutral molecule containing both a positive and a negative charge.
- 10.How is a polypeptide chain formed?
- A.
From N-terminal to C-terminal
- B.
From C-terminal to N-terminal
- C.
From 5'-3'
- D.
From 3'-5'
- 11.How are the R groups arranged in an alpha-helix secondary structure?
- A.
They all point outwards
- B.
They all point inwards
- C.
They follow the shape of the helix
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