Question 1

Which two functional groups are involved in producing a peptide bond?

Accepted Answer

A)  alcohol and amino 
B)  amino and thiol 
C)  methyl and amino 
D)  amino and carboxyl 
A)  alcohol and amino 
B)  amino and thiol 
C)  methyl and amino 
D)  amino and carboxyl

Question 2

When a ligand binds to a receptor,it causes the receptor to

Accepted Answer

A)  degrade. 
B)  activate. 
C)  deactivate. 
D)  rapidly grow. 
A)  degrade. 
B)  activate. 
C)  deactivate. 
D)  rapidly grow.

Question 3

A genome is a set of

Accepted Answer

A)  proteins. 
B)  transcripts. 
C)  genes. 
D)  genetic code. 
A)  proteins. 
B)  transcripts. 
C)  genes. 
D)  genetic code.

Question 4

The function of chloroplasts in plant cells is to convert

Accepted Answer

A)  heat energy to light energy. 
B)  heat energy to chemical energy. 
C)  light energy to chemical energy. 
D)  chemical energy to heat energy. 
A)  heat energy to light energy. 
B)  heat energy to chemical energy. 
C)  light energy to chemical energy. 
D)  chemical energy to heat energy.

Question 5

Bioinformatics shows that 98% of human DNA is identical to that of chimpanzees.If human DNA contains 3.2 billion nucleotides,how many nucleotides are different between the two species?

Accepted Answer

A)  3.1 billion 
B)  64 million 
C)  3.1 million 
D)  640 million 
A)  3.1 billion 
B)  64 million 
C)  3.1 million 
D)  640 million

Question 6

The process of fermentation uses sugar to produce which molecules?

Accepted Answer

A)  alcohol and carbon monoxide 
B)  alcohol and carbon dioxide 
C)  acid and carbon monoxide 
D)  acid and carbon dioxide 
A)  alcohol and carbon monoxide 
B)  alcohol and carbon dioxide 
C)  acid and carbon monoxide 
D)  acid and carbon dioxide

Question 7

The birth of modern biochemistry can be traced to the

Accepted Answer

A)  end of the 19th century. 
B)  end of the 20th century. 
C)  beginning of the 19th century. 
D)  beginning of the 21st century. 
A)  end of the 19th century. 
B)  end of the 20th century. 
C)  beginning of the 19th century. 
D)  beginning of the 21st century.

Question 8

Vitamin B2 is a metabolite.Lack of vitamin B2 can lead to blurred vision and a swollen tongue.Vitamin B2 has such a strong effect on health because metabolites

Accepted Answer

A)  are the catalysts that drive biochemical reactions necessary for life-sustaining processes. 
B)  are complex chemical reactions in cells. 
C)  process essential genetic information needed for life. 
D)  are needed for construction of microtubules. 
A)  are the catalysts that drive biochemical reactions necessary for life-sustaining processes. 
B)  are complex chemical reactions in cells. 
C)  process essential genetic information needed for life. 
D)  are needed for construction of microtubules.

Question 9

What is the maximum number of covalent bonds a carbon atom can make?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Question 10

The essential ions calcium,magnesium,potassium,and sodium are all

Accepted Answer

A)  anions. 
B)  cations. 
C)  transition metals. 
D)  halogens. 
A)  anions. 
B)  cations. 
C)  transition metals. 
D)  halogens.

Question 11

Differentiate between orthologous genes and paralogous genes.

Accepted Answer

Orthologous genes are highly conserved g

Question 12

What functions can polysaccharides perform?

Accepted Answer

They provide structu

Question 13

What side products of pyruvate are being converted into alcohol and carbon dioxide by yeast?

Accepted Answer

A)  CO and NADH 
B)  CO2 and NADH 
C)  CO2 and NAD+ 
D)  CO and NAD+ 
A)  CO and NADH 
B)  CO2 and NADH 
C)  CO2 and NAD+ 
D)  CO and NAD+

Question 14

In structures of tRNA,base pairs form between

Accepted Answer

A)  the same strand. 
B)  another strand of RNA. 
C)  a strand of DNA. 
D)  Base pairs do not form. 
A)  the same strand. 
B)  another strand of RNA. 
C)  a strand of DNA. 
D)  Base pairs do not form.

Question 15

Mutations to proteins typically occur starting

Accepted Answer

A)  at the protein itself. 
B)  with mRNA. 
C)  with tRNA. 
D)  with DNA. 
A)  at the protein itself. 
B)  with mRNA. 
C)  with tRNA. 
D)  with DNA.

Question 16

Simple sugars are made of which of the following elements?

Accepted Answer

A)  carbon, sulfur, and hydrogen 
B)  carbon, oxygen, and phosphate 
C)  carbon, oxygen, and helium 
D)  carbon, oxygen, and hydrogen 
A)  carbon, sulfur, and hydrogen 
B)  carbon, oxygen, and phosphate 
C)  carbon, oxygen, and helium 
D)  carbon, oxygen, and hydrogen

Question 17

The amino acid sequence of a protein determines its structure.Which of the following statements is true?

Accepted Answer

A)  Two proteins with similar amino acid sequence should have similar structures. 
B)  Two proteins with different amino acid sequences will have identical structures. 
C)  Two proteins with similar amino acid sequences will always have the same function in a cell. 
D)  It is impossible to determine how proteins will fold based on the amino acid sequence alone. 
A)  Two proteins with similar amino acid sequence should have similar structures. 
B)  Two proteins with different amino acid sequences will have identical structures. 
C)  Two proteins with similar amino acid sequences will always have the same function in a cell. 
D)  It is impossible to determine how proteins will fold based on the amino acid sequence alone.

Question 18

A requirement for a covalent bond to form between two atoms is that

Accepted Answer

A)  there are unpaired electrons on each atom. 
B)  the atoms are ions. 
C)  both the atoms must be metals. 
D)  one of the atoms must be a halogen. 
A)  there are unpaired electrons on each atom. 
B)  the atoms are ions. 
C)  both the atoms must be metals. 
D)  one of the atoms must be a halogen.

Exam 1: Principles of Biochemistry

Which two functional groups are involved in producing a peptide bond?

When a ligand binds to a receptor,it causes the receptor to

A genome is a set of

The function of chloroplasts in plant cells is to convert

Bioinformatics shows that 98% of human DNA is identical to that of chimpanzees.If human DNA contains 3.2 billion nucleotides,how many nucleotides are different between the two species?

The process of fermentation uses sugar to produce which molecules?

The birth of modern biochemistry can be traced to the

Vitamin B2 is a metabolite.Lack of vitamin B2 can lead to blurred vision and a swollen tongue.Vitamin B2 has such a strong effect on health because metabolites

What is the maximum number of covalent bonds a carbon atom can make?

The essential ions calcium,magnesium,potassium,and sodium are all

Differentiate between orthologous genes and paralogous genes.

What functions can polysaccharides perform?

What side products of pyruvate are being converted into alcohol and carbon dioxide by yeast?

In structures of tRNA,base pairs form between

Mutations to proteins typically occur starting

Simple sugars are made of which of the following elements?

The amino acid sequence of a protein determines its structure.Which of the following statements is true?

A requirement for a covalent bond to form between two atoms is that

Physical Biochemistry: Energy Conversion,water,and Membranes

Nucleic Acid Structure and Function

Protein Structure

Methods in Protein Biochemistry

Protein Function

Enzyme Mechanisms

Cell Signaling Systems

Glycolysis: a Paradigm of Metabolic Regulation

The Citrate Cycle

Oxidative Phosphorylation

Photosynthesis

Carbohydrate Structure and Function

Carbohydrate Metabolism

Lipid Structure and Function

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Metabolic Integration

Dna Replication, repair, and Recombination

Rna Synthesis, processing, and Gene Silencing

Protein Synthesis, posttranslational Modification, and Transport

Gene Regulation

Filters

Vitamin B₂ is a metabolite.Lack of vitamin B₂ can lead to blurred vision and a swollen tongue.Vitamin B₂ has such a strong effect on health because metabolites