Question 1

Absolute zero is equal to 0°C.

Accepted Answer

A) True 
 B)False

Question 2

Crick referred to the flow of information from nucleic acid to protein as the Central Dogma.

Accepted Answer

A) True 
 B)False

Question 3

Bioinformatics has permitted rapid advances in our understanding of structural macromolecules from living cells.

Accepted Answer

A) True 
 B)False

Question 4

Enzymes are protein catalysts that form an intermediate with a substrate that fits into it.

Accepted Answer

A) True 
 B)False

Question 5

Actin has been shown to be one of the most evolutionarily conserved proteins.It is present in all eukaryotic cells and frequently is the most abundant protein in the cell.

Accepted Answer

A) True 
 B)False

Question 6

What is the correct order in which these key breakthroughs in biochemistry occurred?
I. Watson and Crick DNA structure
II. Crick Central dogma
III. Avery,MacLeod and McCarty DNA work on Streptococcus
IV. Widespread use of computers

Accepted Answer

A) I,II,III,IV 
B) III,I,II,IV 
C) II,I,III,IV 
D) IV,III,I,II 
A) I,II,III,IV 
B) III,I,II,IV 
C) II,I,III,IV 
D) IV,III,I,II

Question 7

Proteins in biological membranes may be

Accepted Answer

A) porous. 
B) attached to the membrane surface. 
C) span the membrane. 
D) all of the above. 
E) B and C only. 
A) porous. 
B) attached to the membrane surface. 
C) span the membrane. 
D) all of the above. 
E) B and C only.

Question 8

Ribosomes on the surface of rough endoplasmic reticulum are the site of ATP synthesis.

Accepted Answer

A) True 
 B)False

Question 9

Mr is the mass of a molecule relative to 1/12 the mass of an atom of the most common isotope of carbon.

Accepted Answer

A) True 
 B)False

Question 10

The only reason phages are not considered to be cells is because they do not contain a plasma membrane.

Accepted Answer

A) True 
 B)False

Question 11

Fermentation in the absence of cells demonstrated that metabolic processes were chemical in nature.

Accepted Answer

A) True 
 B)False

Question 12

The endoplasmic reticulum is the major site of RNA synthesis and the site of assembly of ribosomes.

Accepted Answer

A) True 
 B)False

Question 13

The process of cell division that occurs in the tissues is called mitosis.

Accepted Answer

A) True 
 B)False

Question 14

The study of the energy changes during metabolic reactions is called ________.

Accepted Answer

A) bioinformatics 
B) metabodynamics 
C) thermometrics 
D) bioenergetics 
E) biological heat dynamics 
A) bioinformatics 
B) metabodynamics 
C) thermometrics 
D) bioenergetics 
E) biological heat dynamics

Question 15

The Haworth projection of the ring form of a monosaccharide always shows a flat plane with one edge projecting out of the page (using thicker lines).

Accepted Answer

A) True 
 B)False

Question 16

In eukaryotic cells lysosomes are specialized digestive vesicles with a highly acidic interior.

Accepted Answer

A) True 
 B)False

Question 17

Molecules from living cells cannot be synthesized outside of living cells.

Accepted Answer

A) True 
 B)False

Question 18

Photosynthesis involves capturing energy from light that is then used to drive the formation of carbohydrates from carbon dioxide and water.

Accepted Answer

A) True 
 B)False

Question 19

Which elements account for more than 97% of the weight of most organisms?

Accepted Answer

A) C,H,N,Mg,O,S 
B) C,H,N,O,P,S 
C) C,H,N 
D) Fe,C,H,O,P 
E) Ca²+,K+,Na+,Mg²+,Cl- 
A) C,H,N,Mg,O,S 
B) C,H,N,O,P,S 
C) C,H,N 
D) Fe,C,H,O,P 
E) Ca²+,K+,Na+,Mg²+,Cl-

Question 20

Which statement is true?

Accepted Answer

A) If DG is negative,then the rate of the reaction will be fast. 
B) If DG is positive,then the rate of the reaction will be fast. 
C) If DG is negative,then the rate of the reaction will be slow. 
D) If DG is positive,then the rate of the reaction will be slow. 
E) The reaction rate is independent of DG. 
A) If DG is negative,then the rate of the reaction will be fast. 
B) If DG is positive,then the rate of the reaction will be fast. 
C) If DG is negative,then the rate of the reaction will be slow. 
D) If DG is positive,then the rate of the reaction will be slow. 
E) The reaction rate is independent of DG.

Exam 1: Introduction to Biochemistry

Absolute zero is equal to 0°C.

Crick referred to the flow of information from nucleic acid to protein as the Central Dogma.

Bioinformatics has permitted rapid advances in our understanding of structural macromolecules from living cells.

Enzymes are protein catalysts that form an intermediate with a substrate that fits into it.

Actin has been shown to be one of the most evolutionarily conserved proteins.It is present in all eukaryotic cells and frequently is the most abundant protein in the cell.

What is the correct order in which these key breakthroughs in biochemistry occurred? I. Watson and Crick DNA structure II. Crick Central dogma III. Avery,MacLeod and McCarty DNA work on Streptococcus IV. Widespread use of computers

Proteins in biological membranes may be

Ribosomes on the surface of rough endoplasmic reticulum are the site of ATP synthesis.

Mr is the mass of a molecule relative to 1/12 the mass of an atom of the most common isotope of carbon.

The only reason phages are not considered to be cells is because they do not contain a plasma membrane.

Fermentation in the absence of cells demonstrated that metabolic processes were chemical in nature.

The endoplasmic reticulum is the major site of RNA synthesis and the site of assembly of ribosomes.

The process of cell division that occurs in the tissues is called mitosis.

The study of the energy changes during metabolic reactions is called ________.

The Haworth projection of the ring form of a monosaccharide always shows a flat plane with one edge projecting out of the page (using thicker lines).

In eukaryotic cells lysosomes are specialized digestive vesicles with a highly acidic interior.

Molecules from living cells cannot be synthesized outside of living cells.

Photosynthesis involves capturing energy from light that is then used to drive the formation of carbohydrates from carbon dioxide and water.

Which elements account for more than 97% of the weight of most organisms?

Which statement is true?

Water

Amino Acids and the Primary Structures of Proteins

Proteins: Three-Dimensional Structure and Function

Properties of Enzymes

Mechanisms of Enzymes

Coenzymes and Vitamins

Carbohydrates

Lipids and Membranes

Introduction to Metabolism

Glycolysis

Gluconeogenesis, the Pentose Phosphate Pathway, and Glycogen Metabolism

The Citric Acid Cycle

Electron Transport and Atp Synthesis

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Nucleic Acids

DNA Replication, repair, and Recombination

Transcription and RNA Processing

Protein Synthesis

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