Question 1

The endoplasmic reticulum

Accepted Answer

A)  is part of a continuous membrane system throughout the cell 
B)  occurs in two forms, rough and smooth 
C)  can have ribosomes bound to it 
D)  all of the above 
A)  is part of a continuous membrane system throughout the cell 
B)  occurs in two forms, rough and smooth 
C)  can have ribosomes bound to it 
D)  all of the above D

Question 2

Which cell component is composed of RNA and protein?

Accepted Answer

A)  Nucleus 
B)  Mitochondrion 
C)  Endoplasmic Reticulum 
D)  Chloroplast 
E)  Ribosome 
A)  Nucleus 
B)  Mitochondrion 
C)  Endoplasmic Reticulum 
D)  Chloroplast 
E)  Ribosome E

Question 3

Prokaryotes

Accepted Answer

A)  contain ribosomes 
B)  do not have a cell membrane 
C)  contain mitochondria 
D)  none of the above 
A)  contain ribosomes 
B)  do not have a cell membrane 
C)  contain mitochondria 
D)  none of the above A

Question 4

​ Which of the following biomolecules forms the molecular currency of the cell, adenosine triphosphate (ATP)?

Accepted Answer

A)  Nucleotides 
B)  Esters 
C)  Amino acids 
D)  Lipids 
A)  Nucleotides 
B)  Esters 
C)  Amino acids 
D)  Lipids

Question 5

Which organelle does not contain DNA?

Accepted Answer

A)  Nucleus 
B)  Mitochondrion 
C)  Rough Endoplasmic Reticulum 
D)  Chloroplast 
E)  All of these organelles contain DNA 
A)  Nucleus 
B)  Mitochondrion 
C)  Rough Endoplasmic Reticulum 
D)  Chloroplast 
E)  All of these organelles contain DNA

Question 6

​ Identify the class of basic biomolecules represented by the following structure.

Accepted Answer

A)  Carbohydrates 
B)  Amino acids 
C)  Nucleotides 
D)  Lipids 
A)  Carbohydrates 
B)  Amino acids 
C)  Nucleotides 
D)  Lipids

Question 7

Which of the following functional groups is specific to an alcohol?

Accepted Answer

A)  -NH 
B)  -OH 
C)  -C=O 
D)  C=C 
E)  O-P 
A)  -NH 
B)  -OH 
C)  -C=O 
D)  C=C 
E)  O-P

Question 8

In the Five Kingdom classification system, Escherichia coli would be considered

Accepted Answer

A)  animals. 
B)  protists. 
C)  monera. 
D)  none of the above. 
A)  animals. 
B)  protists. 
C)  monera. 
D)  none of the above.

Question 9

Which statement is not correct about peptide nucleic acids, PNA?

Accepted Answer

A)  They are combinations of peptides and nucleic acids. 
B)  Scientists create them to study the origins of life 
C)  They were proven to be the first hereditary molecule. 
D)  They may combine the catalytic properties of proteins with the information transfer ability of nucleic acid 
E)  All of these statements apply to PNA. 
A)  They are combinations of peptides and nucleic acids. 
B)  Scientists create them to study the origins of life 
C)  They were proven to be the first hereditary molecule. 
D)  They may combine the catalytic properties of proteins with the information transfer ability of nucleic acid 
E)  All of these statements apply to PNA.

Question 10

The following cellular component is the defining component of most plant cells:

Accepted Answer

A)  Nucleus 
B)  Ribosomes 
C)  Chloroplasts 
D)  Mitochondria 
E)  Cell walls 
A)  Nucleus 
B)  Ribosomes 
C)  Chloroplasts 
D)  Mitochondria 
E)  Cell walls

Question 11

How are the majority of elements thought to have been formed?

Accepted Answer

A)  By thermonuclear reactions that normally take place in stars. 
B)  In explosions of stars. 
C)  By the action of cosmic rays outside the stars since the formation of the galaxy. 
D)  All of the choices are true 
E)  None of the choices; all the elements were present from the initial Big Bang. 
A)  By thermonuclear reactions that normally take place in stars. 
B)  In explosions of stars. 
C)  By the action of cosmic rays outside the stars since the formation of the galaxy. 
D)  All of the choices are true 
E)  None of the choices; all the elements were present from the initial Big Bang.

Question 12

Animal cells do not contain

Accepted Answer

A)  a nucleus 
B)  mitochondria 
C)  chloroplasts 
D)  lysosomes 
A)  a nucleus 
B)  mitochondria 
C)  chloroplasts 
D)  lysosomes

Question 13

Chloroplasts

Accepted Answer

A)  contain no DNA 
B)  are bounded by a single membrane 
C)  are relatively small organelles 
D)  are the site of photosynthesis in green plants 
A)  contain no DNA 
B)  are bounded by a single membrane 
C)  are relatively small organelles 
D)  are the site of photosynthesis in green plants

Question 14

The mitochondrial matrix

Accepted Answer

A)  is the location of enzymes needed for oxidation reactions 
B)  contains an array of microtubules 
C)  is part of the endoplasmic reticulum 
D)  lies between the inner and outer mitochondrial membrane 
A)  is the location of enzymes needed for oxidation reactions 
B)  contains an array of microtubules 
C)  is part of the endoplasmic reticulum 
D)  lies between the inner and outer mitochondrial membrane

Question 15

Which of the following organelles does not have a double membrane?

Accepted Answer

A)  mitochondrion 
B)  nucleus 
C)  endoplasmic reticulum 
D)  chloroplast 
A)  mitochondrion 
B)  nucleus 
C)  endoplasmic reticulum 
D)  chloroplast

Question 16

The Golgi apparatus

Accepted Answer

A)  occurs in prokaryotes 
B)  is involved in secretion of proteins from the cell 
C)  is part of the chloroplast 
D)  is the site of protein synthesis 
A)  occurs in prokaryotes 
B)  is involved in secretion of proteins from the cell 
C)  is part of the chloroplast 
D)  is the site of protein synthesis

Question 17

Which of the following best describes the results of the Miller-Urey experiment?

Accepted Answer

A)  It proved that DNA is the genetic material. 
B)  It produced proteins under conditions simulating the early Earth. 
C)  It created living cells from non-living materials. 
D)  It produced some simple organic compounds from a mixture of gases presumed to have existed in the early atmosphere. 
E)  All of these results of the Miller-Urey experiment. 
A)  It proved that DNA is the genetic material. 
B)  It produced proteins under conditions simulating the early Earth. 
C)  It created living cells from non-living materials. 
D)  It produced some simple organic compounds from a mixture of gases presumed to have existed in the early atmosphere. 
E)  All of these results of the Miller-Urey experiment.

Question 18

Which cell component has cristae?

Accepted Answer

A)  Nucleus 
B)  Mitochondrion 
C)  Endoplasmic Reticulum 
D)  Chloroplast 
E)  Ribosome 
A)  Nucleus 
B)  Mitochondrion 
C)  Endoplasmic Reticulum 
D)  Chloroplast 
E)  Ribosome

Question 19

Which of the following cellular components is commonly found in bacteria?

Accepted Answer

A)  Nucleus 
B)  Ribosomes 
C)  Chloroplasts 
D)  Mitochondria 
E)  More than one of these is characteristic of bacteria. 
A)  Nucleus 
B)  Ribosomes 
C)  Chloroplasts 
D)  Mitochondria 
E)  More than one of these is characteristic of bacteria.

Question 20

Biological catalysts are

Accepted Answer

A)  proteins exclusively 
B)  RNA exclusively 
C)  DNA exclusively 
D)  some proteins and some RNA 
A)  proteins exclusively 
B)  RNA exclusively 
C)  DNA exclusively 
D)  some proteins and some RNA

Exam 1: Biochemistry and the Organization of Cells

The endoplasmic reticulum

Which cell component is composed of RNA and protein?

Prokaryotes

​ Which of the following biomolecules forms the molecular currency of the cell, adenosine triphosphate (ATP)?

Which organelle does not contain DNA?

​ Identify the class of basic biomolecules represented by the following structure.

Which of the following functional groups is specific to an alcohol?

In the Five Kingdom classification system, Escherichia coli would be considered

Which statement is not correct about peptide nucleic acids, PNA?

The following cellular component is the defining component of most plant cells:

How are the majority of elements thought to have been formed?

Animal cells do not contain

Chloroplasts

The mitochondrial matrix

Which of the following organelles does not have a double membrane?

The Golgi apparatus

Which of the following best describes the results of the Miller-Urey experiment?

Which cell component has cristae?

Which of the following cellular components is commonly found in bacteria?

Biological catalysts are

Water the Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins Enzymes

The Behavior of Proteins Enzymes Mechanisms and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids How Structure Conveys Information

Biosynthesis of Nucleic Acids Replication

Transcription of the Genetic Code the Biosynthesis of Rna

Protein Synthesis Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses Cancer and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism Cellular Signaling

Filters

Which of the following biomolecules forms the molecular currency of the cell, adenosine triphosphate (ATP)?

Identify the class of basic biomolecules represented by the following structure.