Question 1

Name four organelles found in a eukaryotic cell.

Accepted Answer

Many answers are correct inclu

Question 2

Proteins are a polymer of __________,whereas nucleic acids are polymers of __________.

Accepted Answer

A)  nucleotides; fatty acid esters 
B)  nucleotides; amino acids 
C)  amino acids; nucleotides 
D)  sugars; nucleotides 
A)  nucleotides; fatty acid esters 
B)  nucleotides; amino acids 
C)  amino acids; nucleotides 
D)  sugars; nucleotides

Question 3

For the figure below,label the   and   ends for each strand,the hydrogen bonds,and the pyrimidine and purine molecules,as well as the direction of polarity.

Accepted Answer

The answer of For the figure below,label the  ...

Question 4

Plasmids are small,circular DNA molecules that are used in which of the following?

Accepted Answer

A)  gene cloning 
B)  production of chromatin 
C)  cell movement 
D)  replication of nucleus 
A)  gene cloning 
B)  production of chromatin 
C)  cell movement 
D)  replication of nucleus

Question 5

How does the molecule adenosine monophosphate fit into the seven hierarchical levels that define the chemical basis of life?

Accepted Answer

A)  element/functional group 
B)  biomolecule 
C)  metabolism 
D)  organism 
A)  element/functional group 
B)  biomolecule 
C)  metabolism 
D)  organism

Question 6

Which of the following is an example of a metabolic pathway?

Accepted Answer

A)  mitochondria 
B)  organelles 
C)  glycolysis 
D)  plasma membrane 
A)  mitochondria 
B)  organelles 
C)  glycolysis 
D)  plasma membrane

Question 7

A single nucleotide base substitution in a wild-type DNA is an example of

Accepted Answer

A)  random mutation. 
B)  transcription. 
C)  translation. 
D)  cloning. 
A)  random mutation. 
B)  transcription. 
C)  translation. 
D)  cloning.

Question 8

The study of biochemistry attempts to explain

Accepted Answer

A)  chemical processes at the atomic level. 
B)  biological processes at the molecular and cellular level. 
C)  the nature of life. 
D)  physical processes at the macromolecular level. 
A)  chemical processes at the atomic level. 
B)  biological processes at the molecular and cellular level. 
C)  the nature of life. 
D)  physical processes at the macromolecular level.

Question 9

If the concentration of aspartate in the cell decreased,what would be the predicted outcome?

Accepted Answer

A)  increased concentration of argininosuccinate 
B)  decreased concentration of citrulline 
C)  decreased concentration of fumarate 
D)  increased concentration of arginine 
A)  increased concentration of argininosuccinate 
B)  decreased concentration of citrulline 
C)  decreased concentration of fumarate 
D)  increased concentration of arginine

Question 10

Enzymes and chromosome are found where in the bacterial cell?

Accepted Answer

A)  nucleoid 
B)  pili 
C)  cytoplasm 
D)  capsule 
A)  nucleoid 
B)  pili 
C)  cytoplasm 
D)  capsule

Question 11

List three examples of how biochemistry has made advancements in the lives of many humans.

Accepted Answer

A list can be found in Section

Question 12

Which of the following is an example of an ecosystem?

Accepted Answer

A)  mammals 
B)  plasma membrane 
C)  insects 
D)  forest 
A)  mammals 
B)  plasma membrane 
C)  insects 
D)  forest

Question 13

The __________ differentiates amino acids from one another.

Accepted Answer

A)  number of silane groups 
B)  number of phosphoryl groups 
C)  side chains attached to the central carbon 
D)  number of hydroxyl groups 
A)  number of silane groups 
B)  number of phosphoryl groups 
C)  side chains attached to the central carbon 
D)  number of hydroxyl groups

Question 14

What is the function of mRNA in the cell?

Accepted Answer

mRNA is used as temp

Question 15

What structural feature of DNA is attributed to the fact that the two DNA strands are antiparallel?

Accepted Answer

A)  DNA is a left-handed helix. 
B)  DNA has the phosphate groups on the interior. 
C)  DNA is a right-handed helix. 
D)  DNA forms a pleated sheet. 
A)  DNA is a left-handed helix. 
B)  DNA has the phosphate groups on the interior. 
C)  DNA is a right-handed helix. 
D)  DNA forms a pleated sheet.

Question 16

A hydrogen bond can best be described as a

Accepted Answer

A)  strong covalent interaction. 
B)  strong ionic interaction. 
C)  weak noncovalent interaction. 
D)  weak covalent interaction. 
A)  strong covalent interaction. 
B)  strong ionic interaction. 
C)  weak noncovalent interaction. 
D)  weak covalent interaction.

Question 17

The appearance of new gene speciation is an example of

Accepted Answer

A)  gene multiplication. 
B)  gene singulation. 
C)  gene duplication. 
D)  random mutation. 
A)  gene multiplication. 
B)  gene singulation. 
C)  gene duplication. 
D)  random mutation.

Question 18

Humans do not have the enzyme cellulase.Is it likely that a human could survive on a plant-only diet?

Accepted Answer

A)  No, not enough ATP would be produced to generate energy. 
B)  No, not enough DNA would be produced to generate energy. 
C)  Yes, cellulase is not necessary to break down plant material. 
D)  Yes, ATP is not necessary to maintain life. 
A)  No, not enough ATP would be produced to generate energy. 
B)  No, not enough DNA would be produced to generate energy. 
C)  Yes, cellulase is not necessary to break down plant material. 
D)  Yes, ATP is not necessary to maintain life.

Question 19

What does chromatin in eukaryotic nucleus contain?

Accepted Answer

A)  DNA packaged with proteins. 
B)  RNA packaged with proteins. 
C)  ATP packaged with proteins. 
D)  DNA packaged with ATP. 
A)  DNA packaged with proteins. 
B)  RNA packaged with proteins. 
C)  ATP packaged with proteins. 
D)  DNA packaged with ATP.

Question 20

If the concentration of F is high in a cell,the pathway will MOST likely shift to produce

Accepted Answer

A)  more C. 
B)  less C. 
C)  more A. 
D)  less D. 
A)  more C. 
B)  less C. 
C)  more A. 
D)  less D.

Exam 1: Principles of Biochemistry

Name four organelles found in a eukaryotic cell.

Proteins are a polymer of __________,whereas nucleic acids are polymers of __________.

For the figure below,label the and ends for each strand,the hydrogen bonds,and the pyrimidine and purine molecules,as well as the direction of polarity.

Plasmids are small,circular DNA molecules that are used in which of the following?

How does the molecule adenosine monophosphate fit into the seven hierarchical levels that define the chemical basis of life?

Which of the following is an example of a metabolic pathway?

A single nucleotide base substitution in a wild-type DNA is an example of

The study of biochemistry attempts to explain

If the concentration of aspartate in the cell decreased,what would be the predicted outcome?

Enzymes and chromosome are found where in the bacterial cell?

List three examples of how biochemistry has made advancements in the lives of many humans.

Which of the following is an example of an ecosystem?

The __________ differentiates amino acids from one another.

What is the function of mRNA in the cell?

What structural feature of DNA is attributed to the fact that the two DNA strands are antiparallel?

A hydrogen bond can best be described as a

The appearance of new gene speciation is an example of

Humans do not have the enzyme cellulase.Is it likely that a human could survive on a plant-only diet?

What does chromatin in eukaryotic nucleus contain?

If the concentration of F is high in a cell,the pathway will MOST likely shift to produce

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

Proteins are a polymer of ,whereas nucleic acids are polymers of .