Question 1

The process in which DNA unwinds and creates two identical daughter DNA strands is known as ____.

Accepted Answer

A) coding 
B) translation 
C) replication 
D) transcription 
E) cloning 
A) coding 
B) translation 
C) replication 
D) transcription 
E) cloning

Question 2

Which of these represent patterns found in the secondary structures of proteins?
I. Alpha helix
II. Globular
III. Pleated sheet
IV. Fibrous

Accepted Answer

A) I only 
B) I and II 
C) II and IV 
D) I and III 
E) I, III and IV 
A) I only 
B) I and II 
C) II and IV 
D) I and III 
E) I, III and IV

Question 3

The portion of the DNA that specifies the sequence of a particular protein is known as a(n)____.

Accepted Answer

A) chromosome 
B) codon 
C) nucleotide 
D) mRNA 
E) gene 
A) chromosome 
B) codon 
C) nucleotide 
D) mRNA 
E) gene

Question 4

Choose the correct complementary DNA strand for GCTATAC.

Accepted Answer

A) ATCGCGC 
B) CGATATG 
C) TUBCGCU 
D) UTCGCGT 
E) GCTATAC 
A) ATCGCGC 
B) CGATATG 
C) TUBCGCU 
D) UTCGCGT 
E) GCTATAC

Question 5

Nucleic acids are long chain like molecules composed of regular repeating ____.

Accepted Answer

A) nucleotides 
B) amino acids 
C) monosaccharides 
D) proteins 
E) fatty acids 
A) nucleotides 
B) amino acids 
C) monosaccharides 
D) proteins 
E) fatty acids

Question 6

Which of these statements about carbohydrates is correct ?

Accepted Answer

A) Carbohydrates contain both a carboxyl and an amine group. 
B) Carbohydrates contain a phosphate backbone with sugar groups. 
C) Carbohydrates release more energy per gram than any other biomolecule. 
D) Carbohydrates are polyhydroxy aldehydes and ketones or their derivatives. 
E) Carbohydrates are formed when a carboxylic acid reacts with glycerol in an acidic environment. 
A) Carbohydrates contain both a carboxyl and an amine group. 
B) Carbohydrates contain a phosphate backbone with sugar groups. 
C) Carbohydrates release more energy per gram than any other biomolecule. 
D) Carbohydrates are polyhydroxy aldehydes and ketones or their derivatives. 
E) Carbohydrates are formed when a carboxylic acid reacts with glycerol in an acidic environment.

Question 7

Compared to a saturated fat with the same number of carbon atoms, a polyunsaturated fat will contain:

Accepted Answer

A) at least four more hydrogen atoms. 
B) four more hydrogen atoms. 
C) two fewer hydrogen atoms. 
D) four fewer hydrogen atoms. 
E) at least four fewer hydrogen atoms. 
A) at least four more hydrogen atoms. 
B) four more hydrogen atoms. 
C) two fewer hydrogen atoms. 
D) four fewer hydrogen atoms. 
E) at least four fewer hydrogen atoms.

Question 8

Classify this structure.

Accepted Answer

A) dipeptide 
B) fatty acid 
C) polypeptide 
D) protein 
E) triglyceride 
A) dipeptide 
B) fatty acid 
C) polypeptide 
D) protein 
E) triglyceride

Question 9

Which of these triglycerides will be a liquid at room temperature?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 10

Which of these techniques is used to separate DNA fragments in recombinant DNA experiments?

Accepted Answer

A) Hydrophillic precipitation 
B) Ionic chromatography 
C) Gel electrophoresis 
D) Selective filtration 
E) Enzyme cleavage 
A) Hydrophillic precipitation 
B) Ionic chromatography 
C) Gel electrophoresis 
D) Selective filtration 
E) Enzyme cleavage

Question 11

Which of these substances is usually classified as a saturated triglyceride?

Accepted Answer

A) Oil 
B) Fat 
C) Water 
D) Cellulose 
E) Starch 
A) Oil 
B) Fat 
C) Water 
D) Cellulose 
E) Starch

Question 12

Classify this structure.

Accepted Answer

A) dipeptide 
B) amino acid 
C) polypeptide 
D) protein 
E) triglyceride 
A) dipeptide 
B) amino acid 
C) polypeptide 
D) protein 
E) triglyceride

Question 13

Which of these is\ are common polysaccharides(s)?
I. Glucose
II. Cellulose
III. Fructose
IV. Starch

Accepted Answer

A) I only 
B) II only 
C) II and III 
D) I and II 
E) II and IV 
A) I only 
B) II only 
C) II and III 
D) I and II 
E) II and IV

Question 14

Which of these is not an application of genetic engineering?

Accepted Answer

A) Insulin production 
B) Spoilage-resistant plants 
C) Extrabeefy cattle 
D) Cloning 
E) All of these are applications. 
A) Insulin production 
B) Spoilage-resistant plants 
C) Extrabeefy cattle 
D) Cloning 
E) All of these are applications.

Question 15

Which of these is a carbohydrate?

Accepted Answer

A) Cellulose 
B) Glucose 
C) Fructose 
D) Lactose 
E) All of the above 
A) Cellulose 
B) Glucose 
C) Fructose 
D) Lactose 
E) All of the above

Question 16

Which of these fatty acids is commonly found in seafood?

Accepted Answer

A) Linoleic 
B) Stearic 
C) Palmitic 
D) Eicosapentaenoic 
E) Oleic 
A) Linoleic 
B) Stearic 
C) Palmitic 
D) Eicosapentaenoic 
E) Oleic

Question 17

Which of these is not considered one of the four major types of molecules in a living organism?

Accepted Answer

A) Lipids 
B) Nucleic acids 
C) Carbohydrates 
D) Proteins 
E) Plasma 
A) Lipids 
B) Nucleic acids 
C) Carbohydrates 
D) Proteins 
E) Plasma

Question 18

Which of these determines the quaternary structure of a protein?

Accepted Answer

A) The sequence of amino acids. 
B) The ratio of acidic amino acids to basic amino acids. 
C) The number of alpha helices and pleated sheets along the axis of the protein. 
D) Two or more subchains of amino acids held together by attractions between the chains. 
E) Interactions between amino acids separated by significant distances on the protein chain. 
A) The sequence of amino acids. 
B) The ratio of acidic amino acids to basic amino acids. 
C) The number of alpha helices and pleated sheets along the axis of the protein. 
D) Two or more subchains of amino acids held together by attractions between the chains. 
E) Interactions between amino acids separated by significant distances on the protein chain.

Question 19

Which of these molecules is the primary means for long-term energy storage?

Accepted Answer

A) Lipids 
B) Nucleic acids 
C) Carbohydrates 
D) Proteins 
E) Plasma 
A) Lipids 
B) Nucleic acids 
C) Carbohydrates 
D) Proteins 
E) Plasma

Question 20

A long chain of 50 or more amino acids is known as a(n)____.

Accepted Answer

A) polysaccharide 
B) polyamide 
C) polypeptide 
D) protein 
E) both C and D 
A) polysaccharide 
B) polyamide 
C) polypeptide 
D) protein 
E) both C and D

The process in which DNA unwinds and creates two identical daughter DNA strands is known as ____.

Which of these represent patterns found in the secondary structures of proteins? I. Alpha helix II. Globular III. Pleated sheet IV. Fibrous

The portion of the DNA that specifies the sequence of a particular protein is known as a(n)____.

Choose the correct complementary DNA strand for GCTATAC.

Nucleic acids are long chain like molecules composed of regular repeating ____.

Which of these statements about carbohydrates is correct ?

Compared to a saturated fat with the same number of carbon atoms, a polyunsaturated fat will contain:

Classify this structure.

Which of these triglycerides will be a liquid at room temperature?

Which of these techniques is used to separate DNA fragments in recombinant DNA experiments?

Which of these substances is usually classified as a saturated triglyceride?

Classify this structure.

Which of these is\ are common polysaccharides(s)? I. Glucose II. Cellulose III. Fructose IV. Starch

Which of these is not an application of genetic engineering?

Which of these is a carbohydrate?

Which of these fatty acids is commonly found in seafood?

Which of these is not considered one of the four major types of molecules in a living organism?

Which of these determines the quaternary structure of a protein?

Which of these molecules is the primary means for long-term energy storage?

A long chain of 50 or more amino acids is known as a(n)____.

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

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Exam 16: Biochemistry and Biotechnology

The process in which DNA unwinds and creates two identical daughter DNA strands is known as ____.

Which of these represent patterns found in the secondary structures of proteins? I. Alpha helix II. Globular III. Pleated sheet IV. Fibrous

The portion of the DNA that specifies the sequence of a particular protein is known as a(n)____.

Choose the correct complementary DNA strand for GCTATAC.

Nucleic acids are long chain like molecules composed of regular repeating ____.

Which of these statements about carbohydrates is correct ?

Compared to a saturated fat with the same number of carbon atoms, a polyunsaturated fat will contain:

Classify this structure.

Which of these triglycerides will be a liquid at room temperature?

Which of these techniques is used to separate DNA fragments in recombinant DNA experiments?

Which of these substances is usually classified as a saturated triglyceride?

Classify this structure.

Which of these is\ are common polysaccharides(s)? I. Glucose II. Cellulose III. Fructose IV. Starch

Which of these is not an application of genetic engineering?

Which of these is a carbohydrate?

Which of these fatty acids is commonly found in seafood?

Which of these is not considered one of the four major types of molecules in a living organism?

Which of these determines the quaternary structure of a protein?

Which of these molecules is the primary means for long-term energy storage?

A long chain of 50 or more amino acids is known as a(n)____.

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters