Question 1

For the amino acid glutamine,the three-letter abbreviation is ________ and the one-letter is ________.

Accepted Answer

gln; Q

Question 2

Cellulose belongs to which of the following groups of macromolecules?

Accepted Answer

A) lipids 
B) carbohydrates 
C) proteins 
D) nucleic acids 
E) none of the above 
A) lipids 
B) carbohydrates 
C) proteins 
D) nucleic acids 
E) none of the above B

Question 3

Small RNA molecules that specifically down-regulate expression by binding to the appropriate mRNA molecule and inhibit translation are

Accepted Answer

A) mRNAs. 
B) siRNAs. 
C) tRNAs. 
D) rRNAs. 
E) miRNAs. 
A) mRNAs. 
B) siRNAs. 
C) tRNAs. 
D) rRNAs. 
E) miRNAs. E

Question 4

Trans fats

Accepted Answer

A) are unsaturated fatty acids. 
B) resemble saturated fatty acids in shape. 
C) are associated with an increased risk of heart disease. 
D) are present in small amounts in meat and dairy products. 
E) all of the above 
A) are unsaturated fatty acids. 
B) resemble saturated fatty acids in shape. 
C) are associated with an increased risk of heart disease. 
D) are present in small amounts in meat and dairy products. 
E) all of the above

Question 5

________ is the major storage polysaccharide for animals,while ________ is the major storage polysaccharide for plants.

Accepted Answer

The answer of ________ is the major storage polysaccharide for...

Question 6

Fibrous proteins have extensive ________ structure,which allows them to be highly ordered and repetitive.

Accepted Answer

A) primary 
B) secondary 
C) tertiary 
D) quaternary 
E) multiprotein complex 
A) primary 
B) secondary 
C) tertiary 
D) quaternary 
E) multiprotein complex

Question 7

Which of the following is a terpene?

Accepted Answer

A) testosterone 
B) vitamin A 
C) glycerol 
D) phenanthrene 
E) dolichol 
A) testosterone 
B) vitamin A 
C) glycerol 
D) phenanthrene 
E) dolichol

Question 8

Which of the following is not a polymer of numerous monomer units?

Accepted Answer

A) lipids 
B) proteins 
C) nucleic acids 
D) carbohydrates 
E) starch 
A) lipids 
B) proteins 
C) nucleic acids 
D) carbohydrates 
E) starch

Question 9

________ are small oligonucleotides,20-30 nucleotides in length,that bind specifically to mRNA and stop translation.

Accepted Answer

The answer of ________ are small oligonucleotides,20-30 nucleotides in length,that...

Question 10

Which of the following is an example of a defensive protein?

Accepted Answer

A) cell surface receptor 
B) antibody 
C) hormone 
D) myosin 
E) keratin 
A) cell surface receptor 
B) antibody 
C) hormone 
D) myosin 
E) keratin

Question 11

Which of the following has the greatest number of glycosidic bonds?

Accepted Answer

A) glucose 
B) triacylglycerol 
C) amylose 
D) DNA 
E) vitamin A 
A) glucose 
B) triacylglycerol 
C) amylose 
D) DNA 
E) vitamin A

Question 12

Which of the following is a nonpolar (hydrophobic)amino acid?

Accepted Answer

A) valine 
B) serine 
C) tyrosine 
D) lysine 
E) aspartate 
A) valine 
B) serine 
C) tyrosine 
D) lysine 
E) aspartate

Question 13

Hydrogen bonding is most important in stabilizing the ________ structure of many proteins.

Accepted Answer

A) primary 
B) secondary 
C) tertiary 
D) quaternary 
E) all of the above 
A) primary 
B) secondary 
C) tertiary 
D) quaternary 
E) all of the above

Question 14

5'-ATAGGGCTT-3' is a short sequence of a strand of DNA.What will be the complementary sequence of the other strand? What will be the complementary mRNA sequence derived from the second strand of DNA? Be sure to indicate the 5' or 3' ends of each sequence.

Accepted Answer

Complementary DNA: 3

Question 15

Which of the following is true of fatty acids?

Accepted Answer

A) Fatty acids are synthesized by the stepwise addition of three carbon units. 
B) Unsaturated fatty acids are usually branched. 
C) Fatty acids with 24 carbons are most common. 
D) Saturated fatty acids have no double bonds between carbons. 
E) Laurate is an unsaturated fatty acid. 
A) Fatty acids are synthesized by the stepwise addition of three carbon units. 
B) Unsaturated fatty acids are usually branched. 
C) Fatty acids with 24 carbons are most common. 
D) Saturated fatty acids have no double bonds between carbons. 
E) Laurate is an unsaturated fatty acid.

Question 16

Match between columns
                        Premises: Haworth projection
multimeric complex
monomer of protein
nucleotide
an example of a globular protein
polymer of glucose
pyrimidine

Accepted Answer

The Answer of spatial structure and monosaccharide and steroids and is...

Question 17

The nucleoside triphosphate molecules in DNA are linked together in the 5'→3' by a(n)________ bridge.

Accepted Answer

A) phosphate 
B) covalent 
C) phosphodiester 
D) peptide 
E) phosphatidyl 
A) phosphate 
B) covalent 
C) phosphodiester 
D) peptide 
E) phosphatidyl

Question 18

Nucleotides are to nucleic acids as amino acids are to ________.

Accepted Answer

The answer of Nucleotides are to nucleic acids as amino...

Question 19

Which of the following is true of transfer RNA?

Accepted Answer

A) It serves as the site of protein synthesis. 
B) It is an important component of ribosomes. 
C) It is responsible for the correct positioning of amino acids in a polypeptide. 
D) It functions in replication only. 
E) It is responsible for the correct positioning of amino acids in a nascent polypeptide. 
A) It serves as the site of protein synthesis. 
B) It is an important component of ribosomes. 
C) It is responsible for the correct positioning of amino acids in a polypeptide. 
D) It functions in replication only. 
E) It is responsible for the correct positioning of amino acids in a nascent polypeptide.

Question 20

Starch,cellulose,and glycogen are all polysaccharides composed of glucose.What makes each of these polysaccharides unique in spite of the fact that all are composed solely of glucose?

Accepted Answer

Starch: is produced by plants and is a n

Exam 3: The Macromolecules of the Cell

For the amino acid glutamine,the three-letter abbreviation is ________ and the one-letter is ________.

Cellulose belongs to which of the following groups of macromolecules?

Small RNA molecules that specifically down-regulate expression by binding to the appropriate mRNA molecule and inhibit translation are

Trans fats

________ is the major storage polysaccharide for animals,while ________ is the major storage polysaccharide for plants.

Fibrous proteins have extensive ________ structure,which allows them to be highly ordered and repetitive.

Which of the following is a terpene?

Which of the following is not a polymer of numerous monomer units?

________ are small oligonucleotides,20-30 nucleotides in length,that bind specifically to mRNA and stop translation.

Which of the following is an example of a defensive protein?

Which of the following has the greatest number of glycosidic bonds?

Which of the following is a nonpolar (hydrophobic)amino acid?

Hydrogen bonding is most important in stabilizing the ________ structure of many proteins.

5'-ATAGGGCTT-3' is a short sequence of a strand of DNA.What will be the complementary sequence of the other strand? What will be the complementary mRNA sequence derived from the second strand of DNA? Be sure to indicate the 5' or 3' ends of each sequence.

Which of the following is true of fatty acids?

The nucleoside triphosphate molecules in DNA are linked together in the 5'→3' by a(n)________ bridge.

Nucleotides are to nucleic acids as amino acids are to ________.

Which of the following is true of transfer RNA?

Starch,cellulose,and glycogen are all polysaccharides composed of glucose.What makes each of these polysaccharides unique in spite of the fact that all are composed solely of glucose?

A Preview of the Cell

The Chemistry of the Cell

Cells and Organelles

Bioenergetics: the Flow of Energy in the Cell

Enzymes: the Catalysts of Life

Membranes: Their Structure, function, and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System and Peroxisomes

Signal Transduction Mechanisms: Ielectrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Iimessengers and Receptors

Cytoskeletal Systems

Cellular Movement: Motility and Contractility

Beyond the Cell: Cell Adhesions, cell Junctions, and Extracellular Structures

The Structural Basis of Cellular Information: DNA, chromosomes, and the Nucleus

The Cell Cycle, DNA Replication, and Mitosis

Sexual Reproduction, meiosis, and Genetic Recombination

Gene Expression: Ithe Genetic Code and Transcription

Gene Expression: Iiprotein Synthesis and Sorting

The Regulation of Gene Expression

Cancer Cells

Filters

For the amino acid glutamine,the three-letter abbreviation is and the one-letter is .

is the major storage polysaccharide for animals,while is the major storage polysaccharide for plants.