Question 1

Classify this structure. ​

Accepted Answer

A)  Polysaccharide 
B)  Amino acid 
C)  Fatty acid 
D)  Protein 
E)  Triglyceride 
A)  Polysaccharide 
B)  Amino acid 
C)  Fatty acid 
D)  Protein 
E)  Triglyceride

Question 2

Proteins are synthesized in a structure called a(n) _____.

Accepted Answer

A)  mRNA 
B)  Codon 
C)  tRNA 
D)  DNA 
E)  Ribosome 
A)  mRNA 
B)  Codon 
C)  tRNA 
D)  DNA 
E)  Ribosome

Question 3

Which of these represent(s) 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 4

A long chain of more than 50 amino acids is known as _____.

Accepted Answer

A)  a polysaccharide 
B)  a polyamide 
C)  a polypeptide 
D)  a protein 
E)  a  polyamine 
A)  a polysaccharide 
B)  a polyamide 
C)  a polypeptide 
D)  a protein 
E)  a  polyamine

Question 5

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 6

Which of these proteins is an antibacterial agent found in mucus and tears?

Accepted Answer

A)  Hemoglobin 
B)  Keratin 
C)  Insulin 
D)  Lysozyme 
E)  Valine 
A)  Hemoglobin 
B)  Keratin 
C)  Insulin 
D)  Lysozyme 
E)  Valine

Question 7

_____, a structural material of plants and trees, is a common polysaccharide.

Accepted Answer

A)  Glucose 
B)  Fructose 
C)  Sucrose 
D)  Cellulose 
E)  Galactose 
A)  Glucose 
B)  Fructose 
C)  Sucrose 
D)  Cellulose 
E)  Galactose

Question 8

Which of these quaternary interactions result from acid-base reactions occurring between acidic and basic R groups?

Accepted Answer

A)  Hydrogen bonds 
B)  Disulfide linkages 
C)  Salt bridges 
D)  Hydrophobic interactions 
E)  None of these 
A)  Hydrogen bonds 
B)  Disulfide linkages 
C)  Salt bridges 
D)  Hydrophobic interactions 
E)  None of these

Question 9

Which of these structures is an amino acid?

Accepted Answer

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

Question 10

Which of these molecules is/are the primary structural component in biomembranes?

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 11

Which of these represents the three primary components of a nucleotide?

Accepted Answer

A)  Phosphate, sugar, base 
B)  Phosphate, acid, base 
C)  Amine, acid, phosphate 
D)  Amine, aldehyde, base 
E)  None of these 
A)  Phosphate, sugar, base 
B)  Phosphate, acid, base 
C)  Amine, acid, phosphate 
D)  Amine, aldehyde, base 
E)  None of these

Question 12

Which of these triglycerides will be a liquid at room temperature?
I.   
II.    
III.  
IV.  
​

Accepted Answer

A)  I only 
B)  II 
C)  III 
D)  IV 
E)  None of these 
A)  I only 
B)  II 
C)  III 
D)  IV 
E)  None of these

Question 13

Which of these is an acidic amino acid?

Accepted Answer

A)  Isoleucine 
B)  Aspartic acid 
C)  Histidine 
D)  Threonine 
E)  Alanine 
A)  Isoleucine 
B)  Aspartic acid 
C)  Histidine 
D)  Threonine 
E)  Alanine

Question 14

Which of these is not a property of glucose?

Accepted Answer

A)  It is easily oxidized. 
B)  It is soluble in water. 
C)  It releases more energy per gram than lipids. 
D)  It undergoes spontaneous intermolecular cyclization. 
E)  It stores energy in a form that is readily transported. 
A)  It is easily oxidized. 
B)  It is soluble in water. 
C)  It releases more energy per gram than lipids. 
D)  It undergoes spontaneous intermolecular cyclization. 
E)  It stores energy in a form that is readily transported.

Question 15

Which of these scientists are credited with discovering the structure of DNA?

Accepted Answer

A)  Watson and Crick 
B)  Fermi and Einstein 
C)  Bohr and Pauli 
D)  Mendeleev and Dalton 
E)  Schrodinger and Heisenberg 
A)  Watson and Crick 
B)  Fermi and Einstein 
C)  Bohr and Pauli 
D)  Mendeleev and Dalton 
E)  Schrodinger and Heisenberg

Question 16

Choose the correct complementary DNA strand for TGTACG?

Accepted Answer

A)  CACGTC 
B)  CACGTA 
C)  ACATGC 
D)  UTCGCG 
E)  GCTATA 
A)  CACGTC 
B)  CACGTA 
C)  ACATGC 
D)  UTCGCG 
E)  GCTATA

Question 17

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 18

All amino acids contain which functional group?

Accepted Answer

A)  Carboxylic acid 
B)  Alcohol 
C)  Alkene 
D)  Amide 
E)  Alkyne 
A)  Carboxylic acid 
B)  Alcohol 
C)  Alkene 
D)  Amide 
E)  Alkyne

Question 19

Which of these statements about lipids is incorrect ?

Accepted Answer

A)  Lipids act as long-term energy reservoirs. 
B)  Vitamins A, D, and K are lipids. 
C)  Lipids provide structural integrity in biomembranes. 
D)  Lipids contain 100 times the energy per gram of other biomolecules . 
E)  Lipids are insoluble in water but are extractable with nonpolar solvents. 
A)  Lipids act as long-term energy reservoirs. 
B)  Vitamins A, D, and K are lipids. 
C)  Lipids provide structural integrity in biomembranes. 
D)  Lipids contain 100 times the energy per gram of other biomolecules . 
E)  Lipids are insoluble in water but are extractable with nonpolar solvents.

Question 20

Which of these is/are 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

Classify this structure.

Proteins are synthesized in a structure called a(n) _____.

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

A long chain of more than 50 amino acids is known as _____.

Classify this structure.

Which of these proteins is an antibacterial agent found in mucus and tears?

_____, a structural material of plants and trees, is a common polysaccharide.

Which of these quaternary interactions result from acid-base reactions occurring between acidic and basic R groups?

Which of these structures is an amino acid?

Which of these molecules is/are the primary structural component in biomembranes?

Which of these represents the three primary components of a nucleotide?

Which of these triglycerides will be a liquid at room temperature? I. II. III. IV.

Which of these is an acidic amino acid?

Which of these is not a property of glucose?

Which of these scientists are credited with discovering the structure of DNA?

Choose the correct complementary DNA strand for TGTACG?

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

All amino acids contain which functional group?

Which of these statements about lipids is incorrect ?

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

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Exam 16: Biochemistry and Biotechnology

Classify this structure. ​

Proteins are synthesized in a structure called a(n) _____.

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

A long chain of more than 50 amino acids is known as _____.

Classify this structure. ​

Which of these proteins is an antibacterial agent found in mucus and tears?

_____, a structural material of plants and trees, is a common polysaccharide.

Which of these quaternary interactions result from acid-base reactions occurring between acidic and basic R groups?

Which of these structures is an amino acid?

Which of these molecules is/are the primary structural component in biomembranes?

Which of these represents the three primary components of a nucleotide?

Which of these triglycerides will be a liquid at room temperature? I. II. III. IV. ​

Which of these is an acidic amino acid?

Which of these is not a property of glucose?

Which of these scientists are credited with discovering the structure of DNA?

Choose the correct complementary DNA strand for TGTACG?

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

All amino acids contain which functional group?

Which of these statements about lipids is incorrect ?

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

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 Online Only

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Classify this structure.

Classify this structure.

Which of these triglycerides will be a liquid at room temperature? I. II. III. IV.