Question 1

In the Three Domain classification system,human beings would be considered

Accepted Answer

A)  Archaebacteria. 
B)  Eubacteria. 
C)  Eukarya. 
D)  none of the above. 
A)  Archaebacteria. 
B)  Eubacteria. 
C)  Eukarya. 
D)  none of the above.

Question 2

Which cell component does not have a double membrane?

Accepted Answer

A)  Nucleus 
B)  Lysosome 
C)  Rough Endoplasmic Reticulum 
D)  Chloroplast 
E)  Mitochondrion 
A)  Nucleus 
B)  Lysosome 
C)  Rough Endoplasmic Reticulum 
D)  Chloroplast 
E)  Mitochondrion

Question 3

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 4

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 5

Eukaryotic DNA

Accepted Answer

A)  is found in the nucleus 
B)  is found in the mitochondrion 
C)  is found in the chloroplast 
D)  all of the above 
A)  is found in the nucleus 
B)  is found in the mitochondrion 
C)  is found in the chloroplast 
D)  all of the above

Question 6

Energy-yielding oxidation reactions take place in eukaryotic

Accepted Answer

A)  nuclei. 
B)  ribosomes. 
C)  mitochondria. 
D)  endoplasmic reticula. 
E)  cell walls. 
A)  nuclei. 
B)  ribosomes. 
C)  mitochondria. 
D)  endoplasmic reticula. 
E)  cell walls.

Question 7

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

Question 8

The main difference between prokaryotic and eukaryotic cells is the existence of ____ in eukaryotes.

Accepted Answer

A)  the nucleus 
B)  ribosomes 
C)  DNA 
D)  RNA 
E)  cell walls 
A)  the nucleus 
B)  ribosomes 
C)  DNA 
D)  RNA 
E)  cell walls

Question 9

Which cell component is able to capture the energy of light?

Accepted Answer

A)  Nucleus 
B)  Lysosome 
C)  Rough Endoplasmic Reticulum 
D)  Chloroplast 
E)  Mitochondrion 
A)  Nucleus 
B)  Lysosome 
C)  Rough Endoplasmic Reticulum 
D)  Chloroplast 
E)  Mitochondrion

Question 10

Which of the following is/are true?

Accepted Answer

A)  The hydrolysis of ATP releases energy. 
B)  Favorable reactions are always fast. 
C)  The hydrolysis of ATP requires the input of oxygen 
D)  The hydrolysis of ATP yields more energy per molecule than the reaction of any other compound 
A)  The hydrolysis of ATP releases energy. 
B)  Favorable reactions are always fast. 
C)  The hydrolysis of ATP requires the input of oxygen 
D)  The hydrolysis of ATP yields more energy per molecule than the reaction of any other compound

Question 11

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 12

Lysosomes,peroxisomes,and glyoxysomes are

Accepted Answer

A)  sites of cell damage 
B)  important in mitosis 
C)  specialized organelles 
D)  a part of the rough endoplasmic reticulum 
A)  sites of cell damage 
B)  important in mitosis 
C)  specialized organelles 
D)  a part of the rough endoplasmic reticulum

Question 13

In its earliest stages,which atoms were present in the universe?

Accepted Answer

A)  carbon, hydrogen, and oxygen 
B)  hydrogen, helium, and lithium 
C)  nitrogen, sulfur, and phosphorous 
D)  uranium, polonium, and radium 
E)  helium, neon, and argon 
A)  carbon, hydrogen, and oxygen 
B)  hydrogen, helium, and lithium 
C)  nitrogen, sulfur, and phosphorous 
D)  uranium, polonium, and radium 
E)  helium, neon, and argon

Question 14

Cell membranes

Accepted Answer

A)  are found in plants, but not in animals 
B)  consist mainly of sugars 
C)  do not allow transport into or out of the cell 
D)  separate the cell from the outside world 
A)  are found in plants, but not in animals 
B)  consist mainly of sugars 
C)  do not allow transport into or out of the cell 
D)  separate the cell from the outside world

Question 15

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 16

All eukaryotic organisms

Accepted Answer

A)  are multicellular 
B)  have a nucleus 
C)  have chloroplasts 
D)  have a cell wall 
A)  are multicellular 
B)  have a nucleus 
C)  have chloroplasts 
D)  have a cell wall

Question 17

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

Question 18

According to thermodynamics,favored processes are

Accepted Answer

A)  ones that require energy. 
B)  ones that release energy. 
C)  oxidations. 
D)  reductions. 
A)  ones that require energy. 
B)  ones that release energy. 
C)  oxidations. 
D)  reductions.

Question 19

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 20

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

Exam 1: Biochemistry and the Organization of Cells

In the Three Domain classification system,human beings would be considered

Which cell component does not have a double membrane?

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

Animal cells do not contain

Eukaryotic DNA

Energy-yielding oxidation reactions take place in eukaryotic

Which cell component is composed of RNA and protein?

The main difference between prokaryotic and eukaryotic cells is the existence of ____ in eukaryotes.

Which cell component is able to capture the energy of light?

Which of the following is/are true?

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

Lysosomes,peroxisomes,and glyoxysomes are

In its earliest stages,which atoms were present in the universe?

Cell membranes

The Golgi apparatus

All eukaryotic organisms

Biological catalysts are

According to thermodynamics,favored processes are

Which organelle does not contain DNA?

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

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: 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