Question 1

Functional groups describe one or more portions of organic compounds found in living cells.

Accepted Answer

A) True 
 B)False

Question 2

Under most biological conditions,acid groups and amino groups are fully protonated.

Accepted Answer

A) True 
 B)False

Question 3

Eukaryotes include plants,animals and bacteria.

Accepted Answer

A) True 
 B)False

Question 4

Diffusion is an adequate means of distributing nutrients in prokaryotic cytoplasm because they have more surface area than volume compared to most eukaryotes.

Accepted Answer

A) True 
 B)False

Question 5

Lysozyme is an enzyme with a cleft or depression at its active site.

Accepted Answer

A) True 
 B)False

Question 6

If a reaction is at equilibrium,what is the free energy change?

Accepted Answer

A) It is always positive. 
B) It is always negative. 
C) It could be either positive or negative depending on the reaction. 
D) It equals zero. 
A) It is always positive. 
B) It is always negative. 
C) It could be either positive or negative depending on the reaction. 
D) It equals zero.

Question 7

The conformation of a protein enzyme determines whether it is functional or not.

Accepted Answer

A) True 
 B)False

Question 8

A phosphodiester linkage in DNA contains two phosphorous atoms.

Accepted Answer

A) True 
 B)False

Question 9

The modified lock-and-key theory of enzyme action proposed by Emil Fischer has been completely replaced by more modern ideas of catalysis.

Accepted Answer

A) True 
 B)False

Question 10

The lock-and-key theory described the action of

Accepted Answer

A) enzymes as keys that fit different chemicals. 
B) substrates as keys that fit different enzymes. 
C) enzymes as locks that fit other enzymes. 
D) substrates as locks that fit different enzymes. 
A) enzymes as keys that fit different chemicals. 
B) substrates as keys that fit different enzymes. 
C) enzymes as locks that fit other enzymes. 
D) substrates as locks that fit different enzymes.

Question 11

According to Crick's Central Dogma of molecular Biology,there can be NO transfer of information from

Accepted Answer

A) DNA to RNA. 
B) RNA to RNA. 
C) RNA to protein. 
D) protein to RNA. 
A) DNA to RNA. 
B) RNA to RNA. 
C) RNA to protein. 
D) protein to RNA.

Question 12

Wohler showed that a chemical found only in living organisms can be made from inorganic substances when he synthesized ________.

Accepted Answer

A) Ammonium cyanate 
B) Amino acids 
C) Urea 
D) Uric acid 
A) Ammonium cyanate 
B) Amino acids 
C) Urea 
D) Uric acid

Functional groups describe one or more portions of organic compounds found in living cells.

Under most biological conditions,acid groups and amino groups are fully protonated.

Eukaryotes include plants,animals and bacteria.

Diffusion is an adequate means of distributing nutrients in prokaryotic cytoplasm because they have more surface area than volume compared to most eukaryotes.

Lysozyme is an enzyme with a cleft or depression at its active site.

If a reaction is at equilibrium,what is the free energy change?

The conformation of a protein enzyme determines whether it is functional or not.

A phosphodiester linkage in DNA contains two phosphorous atoms.

The modified lock-and-key theory of enzyme action proposed by Emil Fischer has been completely replaced by more modern ideas of catalysis.

The lock-and-key theory described the action of

According to Crick's Central Dogma of molecular Biology,there can be NO transfer of information from

Wohler showed that a chemical found only in living organisms can be made from inorganic substances when he synthesized ________.

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

Filters

Exam 1: Introduction to Biochemistry

Functional groups describe one or more portions of organic compounds found in living cells.

Under most biological conditions,acid groups and amino groups are fully protonated.

Eukaryotes include plants,animals and bacteria.

Diffusion is an adequate means of distributing nutrients in prokaryotic cytoplasm because they have more surface area than volume compared to most eukaryotes.

Lysozyme is an enzyme with a cleft or depression at its active site.

If a reaction is at equilibrium,what is the free energy change?

The conformation of a protein enzyme determines whether it is functional or not.

A phosphodiester linkage in DNA contains two phosphorous atoms.

The modified lock-and-key theory of enzyme action proposed by Emil Fischer has been completely replaced by more modern ideas of catalysis.

The lock-and-key theory described the action of

According to Crick's Central Dogma of molecular Biology,there can be NO transfer of information from

Wohler showed that a chemical found only in living organisms can be made from inorganic substances when he synthesized ________.

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

Filters