User:Eric Martz/Ramachandran Principle Quiz

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 34: Line 34:
{'''Questions below may have <font color="red">more than one</font> correct answer.'''}
{'''Questions below may have <font color="red">more than one</font> correct answer.'''}
-
{Question
+
{Phi and psi angles directly determine
|type="[]" coef="2"}
|type="[]" coef="2"}
-
+ Correct answer.
+
- Primary structure.
-
- Incorrect answer.
+
+ Secondary structure.
-
+ Correct answer.
+
+ Tertiary structure.
-
- Incorrect answer.
+
- Quaternary structure.
-
||feedback
+
||See [[Protein primary, secondary, tertiary and quaternary structure]].
</quiz>
</quiz>

Revision as of 22:55, 23 June 2018

1. How many bonded atoms are required to constitute a dihedral (torsion) angle, such as phi or psi?

None
1
2
3
4
5
→
The phi angle is defined by (1) the carboxy carbon from the previous amino acid; (2) N in the amino acid containing the phi bond; (3) Cα in the amino acid containing the phi bond; and (4) the carboxy carbon of the amino acid containing the phi bond.

2. The number of phi and psi angles in an isolated amino acid (not in a polypeptide chain) is:

None
1
2
3
4
5
→The phi angle involves the carboxy carbon of the previous amino acid in a polypeptide chain. The psi angle involves the N of the subsequent amino acid. Therefore an isolated single amino acid has neither phi nor psi angles.

3. The number of atoms held into a geometric plane by a peptide bond is:

3
4
5
6
7
8
→

Questions below may have more than one correct answer.

4. Phi and psi angles directly determine

Primary structure.
Secondary structure.
Tertiary structure.
Quaternary structure.
→See Protein primary, secondary, tertiary and quaternary structure.

Your score is 0 / 0

Proteopedia Page Contributors and Editors (what is this?)

Eric Martz

Retrieved from "http://52.214.119.220/wiki/index.php/User:Eric_Martz/Ramachandran_Principle_Quiz"
Personal tools