Biochem Quiz 1

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Biochem class taken in FTM

Questions and Answers

1.

All of the following atoms are nucleophillic (eletron rich) except for
- A.
  
  F
- B.
  
  O
- C.
  
  N
- D.
  
  C
Correct Answer
A. F
2.

Which bond is the strongest?
- A.
  
  H-Bonds
- B.
  
  Ionic Bonds
- C.
  
  Van der Waals
- D.
  
  Covalent Bonds
- E.
  
  Hydrophobic interactions
Correct Answer
D. Covalent Bonds
3.

A nucleoside is made up of a
- A.
  
  Base
- B.
  
  Base and phosphate
- C.
  
  Base and ribose
- D.
  
  Ribose and phosphate
Correct Answer
C. Base and ribose
4.

________ are a fused ring with a 5-member imidazole while _________ are 6-member rings
- A.
  
  Pyrimidines; Purines
- B.
  
  Purines; Pyrimidines
- C.
  
  Adenine; Guanine
- D.
  
  Uracil; Cytosine
Correct Answer
B. Purines; Pyrimidines
5.

What kind of bond is between the C1 of the pentose and N1 of pyrimidines or N9 of purines?
- A.
  
  Ionic
- B.
  
  Linoleic
- C.
  
  Phsophodiester
- D.
  
  Hydrogen
- E.
  
  Beta-N-glycosidic
Correct Answer
E. Beta-N-glycosidic
6.

All the following are true about nucleoside triphosphate functions except
- A.
  
  ATP - universal chemical energy in cells
- B.
  
  GTP - protein biosynthesis and signaling
- C.
  
  UTP - Activation in protein biosynthesis
- D.
  
  CTP - activation of P-lipid biosynthesis
- E.
  
  Coenzeymes - nucleotide derivatives
Correct Answer
C. UTP - Activation in protein biosynthesis
7.

All of the following are true about DNA double helix except
- A.
  
  Right hand coil
- B.
  
  Held together by H-bonds
- C.
  
  2 non-complementary anti-parallel strands
- D.
  
  Bases are interior of helix
- E.
  
  Phosphate and sugar groups cause negative charge on the outside
Correct Answer
C. 2 non-complementary anti-parallel strands
8.

What is Chargaff's Rules?
- A.
  
  4 bases are equal
- B.
  
  Base composition is the same from species to species
- C.
  
  Purines equal pyrimidines
- D.
  
  Purines equal purines
Correct Answer
C. Purines equal pyrimidines

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Jul 30, 2011

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Jul 08, 2009

Quiz Created by
Masterminh

Biochem Quiz 1

All of the following atoms are nucleophillic (eletron rich) except for

Which bond is the strongest?

A nucleoside is made up of a

________ are a fused ring with a 5-member imidazole while _________ are 6-member rings

What kind of bond is between the C1 of the pentose and N1 of pyrimidines or N9 of purines?

All the following are true about nucleoside triphosphate functions except

All of the following are true about DNA double helix except

What is Chargaff's Rules?

are a fused ring with a 5-member imidazole while _ are 6-member rings