Question 1

A __________ RNA binds an amino acid.

Accepted Answer

The answer of A __________ RNA binds an amino acid....

Question 2

In the DNA damage response,

Accepted Answer

A)  repair enzymes replace mismatched nucleotides in DNA. 
B)  repair enzymes replace mismatched nucleotides in RNA. 
C)  repair enzymes replace mismatched amino acids in protein. 
D)  more than one codon encodes one type of amino acid. 
A)  repair enzymes replace mismatched nucleotides in DNA. 
B)  repair enzymes replace mismatched nucleotides in RNA. 
C)  repair enzymes replace mismatched amino acids in protein. 
D)  more than one codon encodes one type of amino acid.

Question 3

Synthesis of a protein stops when

Accepted Answer

A)  any of three specific anticodons are encountered in the mRNA. 
B)  there is no more DNA. 
C)  any of three "stop" codons are encountered in the mRNA. 
D)  the ribosome becomes fatigued. 
A)  any of three specific anticodons are encountered in the mRNA. 
B)  there is no more DNA. 
C)  any of three "stop" codons are encountered in the mRNA. 
D)  the ribosome becomes fatigued.

Question 4

Building up large molecules is called _______.

Accepted Answer

The answer of Building up large molecules is called _______....

Question 5

Three factors that increase the rates of enzyme-controlled reactions are the

Accepted Answer

A)  number of enzyme molecules, number of substrate molecules, and efficiency of the enzyme. 
B)  temperature of the reaction, number of H2O molecules, and bond strength. 
C)  number of enzyme and substrate molecules formed and strength of the enzyme. 
D)  size of the enzyme compared to the substrate, the number of active sites, and the ratio of enzyme to substrate molecules. 
A)  number of enzyme molecules, number of substrate molecules, and efficiency of the enzyme. 
B)  temperature of the reaction, number of H2O molecules, and bond strength. 
C)  number of enzyme and substrate molecules formed and strength of the enzyme. 
D)  size of the enzyme compared to the substrate, the number of active sites, and the ratio of enzyme to substrate molecules.

Question 6

The codon that will signal where to begin making a polypeptide is ___________.

Accepted Answer

A)  TAC. 
B)  AGG. 
C)  AUG. 
D)  TTA. 
A)  TAC. 
B)  AGG. 
C)  AUG. 
D)  TTA.

Question 7

Oxidation forms chemical bonds.

Accepted Answer

A) True 
 B)False

Question 8

A sequence of DNA is CTGATGTCTA. Its complements is ____________.

Accepted Answer

The answer of A sequence of DNA is CTGATGTCTA. Its...

Question 9

A cell may contain hundreds of different types of enzymes.

Accepted Answer

A) True 
 B)False

Question 10

Oxidation during cellular respiration differs from burning in that respiration

Accepted Answer

A)  doesn't use enzymes to lower the activation energy. 
B)  requires a relatively large amount of energy to start the process. 
C)  uses enzymes to lower the activation energy. 
D)  releases more energy as heat and light. 
A)  doesn't use enzymes to lower the activation energy. 
B)  requires a relatively large amount of energy to start the process. 
C)  uses enzymes to lower the activation energy. 
D)  releases more energy as heat and light.

Question 11

A molecule that carries energy in a form the cell can use is

Accepted Answer

A)  glucose. 
B)  glycogen. 
C)  vitamin C. 
D)  ATP. 
A)  glucose. 
B)  glycogen. 
C)  vitamin C. 
D)  ATP.

Question 12

A different enzyme may catalyze the formation and the breakdown of the same molecule.

Accepted Answer

A) True 
 B)False

Question 13

MicroRNAs

Accepted Answer

A)  are 21 or 22 bases long. 
B)  control gene expression. 
C)  are noncoding RNAs. 
D)  are all of the above. 
A)  are 21 or 22 bases long. 
B)  control gene expression. 
C)  are noncoding RNAs. 
D)  are all of the above.

Question 14

Humans require vitamins in their diets because these nutrients

Accepted Answer

A)  provide energy. 
B)  are broken down by catabolic reactions. 
C)  bond with minerals. 
D)  act as coenzymes. 
A)  provide energy. 
B)  are broken down by catabolic reactions. 
C)  bond with minerals. 
D)  act as coenzymes.

Question 15

DNA profiling

Accepted Answer

A)  sequences the entire genomes of criminals. 
B)  sequences genes that cause disease. 
C)  compares the most variable parts of the genome for a variety of applications. 
D)  analyzes 64 highly variable regions of the human genome. 
A)  sequences the entire genomes of criminals. 
B)  sequences genes that cause disease. 
C)  compares the most variable parts of the genome for a variety of applications. 
D)  analyzes 64 highly variable regions of the human genome.

Question 16

Oxidation of glucose is important because it releases energy.

Accepted Answer

A) True 
 B)False

Question 17

The anaerobic reactions of cellular respiration take place in the

Accepted Answer

A)  cytoplasm. 
B)  mitochondria. 
C)  nucleus. 
D)  ribosomes. 
A)  cytoplasm. 
B)  mitochondria. 
C)  nucleus. 
D)  ribosomes.

Question 18

Codons are part of

Accepted Answer

A)  mRNA. 
B)  tRNA. 
C)  rRNA. 
D)  proteins. 
A)  mRNA. 
B)  tRNA. 
C)  rRNA. 
D)  proteins.

Question 19

Which choice lists structures in order of increasing size?

Accepted Answer

A)  nitrogenous base - nucleotide - gene - chromosome - genome 
B)  nitrogenous base - nucleotide - gene - genome - chromosome 
C)  genome - nucleus - chromosome - nucleotide - gene 
D)  cell - organelle - tissue - organ 
A)  nitrogenous base - nucleotide - gene - chromosome - genome 
B)  nitrogenous base - nucleotide - gene - genome - chromosome 
C)  genome - nucleus - chromosome - nucleotide - gene 
D)  cell - organelle - tissue - organ

Question 20

A molecule that is common to carbohydrate and lipid metabolic pathways and connects these two pathways metabolically is

Accepted Answer

A)  glucose. 
B)  pyruvic acid. 
C)  acetyl coenzyme A. 
D)  glycogen. 
A)  glucose. 
B)  pyruvic acid. 
C)  acetyl coenzyme A. 
D)  glycogen.

Exam 4: Cellular Metabolism

A __________ RNA binds an amino acid.

In the DNA damage response,

Synthesis of a protein stops when

Building up large molecules is called _______.

Three factors that increase the rates of enzyme-controlled reactions are the

The codon that will signal where to begin making a polypeptide is ___________.

Oxidation forms chemical bonds.

A sequence of DNA is CTGATGTCTA. Its complements is ____________.

A cell may contain hundreds of different types of enzymes.

Oxidation during cellular respiration differs from burning in that respiration

A molecule that carries energy in a form the cell can use is

A different enzyme may catalyze the formation and the breakdown of the same molecule.

MicroRNAs

Humans require vitamins in their diets because these nutrients

DNA profiling

Oxidation of glucose is important because it releases energy.

The anaerobic reactions of cellular respiration take place in the

Codons are part of

Which choice lists structures in order of increasing size?

A molecule that is common to carbohydrate and lipid metabolic pathways and connects these two pathways metabolically is

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

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Integumentary System

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Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

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Nutrition and Metabolism

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Water, Electrolyte, and Acid-Based Balance

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Pregnancy, Growth, and Development

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