Biochem Introduction
Introduction to biochem. 10 question
- 1.
What bonds are irreversible?
- A.
Hydrogen bonds
- B.
Covalent bonds
- C.
Ionic bonds
- D.
Van der waals interaction
Correct Answer
B. Covalent bonds -
- 2.
What is the main property of enzymes?
- A.
They are steroselective
- B.
They are hydrophobic
- C.
They are lipophilic
- D.
None of the above
Correct Answer
A. They are steroselective -
- 3.
What converts 11 cis-retinal into all trans-retinal?
- A.
Transferase
- B.
Carboxylase
- C.
Light
- D.
ATP
Correct Answer
C. Light -
- 4.
Which of the following is a selective serotonin reuptake inhibitor (SSRI) antidepressant?
- A.
Lexapro
- B.
Celexa
- C.
Retinal
- D.
None of the above
Correct Answer
A. Lexapro -
- 5.
What is the universal biological solvent
- A.
Nitric oxide
- B.
Propane
- C.
Carbon dioxide
- D.
Water
Correct Answer
D. Water -
- 6.
The partial negative charge on the oxygen and partial positive charge on hydrogen makes water a polar solvent and enables what?
- A.
Hydrogen bonds
- B.
Convalent bonds
- C.
Ionic bonds
- D.
Van der waals interactions
Correct Answer
A. Hydrogen bonds -
- 7.
The dielectric constant of water is?
- A.
A high constant
- B.
A low constant
- C.
Not yet been determined
- D.
More information needed
Correct Answer
A. A high constant -
- 8.
The dielectric constant of a non polar solvent is?
- A.
A high constant
- B.
A low constant
- C.
Has not yet been deterimined
- D.
More information needed
Correct Answer
B. A low constant -
- 9.
What is the osmotic pressure of CaCl2?
- A.
1 Osmoles
- B.
2 Osmoles
- C.
3 Osmoles
- D.
4 Osmoles
Correct Answer
C. 3 OsmolesExplanation
Colligative property.Rate this question:
-
- 10.
What is the ph of blood?
- A.
4.6
- B.
7.4
- C.
10.3
- D.
12.7
Correct Answer
B. 7.4 -
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Mar 18, 2022Quiz Edited by
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Dec 25, 2010Quiz Created by
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