Question 1

In prophase

Accepted Answer

A)  cytokinesis occurs. 
B)  DNA is synthesized. 
C)  the chromosomes replicate. 
D)  the chromosomes condense, shorten, and thicken. 
E)  the spindle fibers disappear. 
A)  cytokinesis occurs. 
B)  DNA is synthesized. 
C)  the chromosomes replicate. 
D)  the chromosomes condense, shorten, and thicken. 
E)  the spindle fibers disappear.

Question 2

A symporter will transport _____ across the cell membrane.

Accepted Answer

A)  two different ions or molecules in opposite directions 
B)  two of the same ions or molecules in the same direction 
C)  two different ions or molecules in the same direction 
D)  two of the same ions or molecules in opposite directions 
E)  one specific ion or molecule 
A)  two different ions or molecules in opposite directions 
B)  two of the same ions or molecules in the same direction 
C)  two different ions or molecules in the same direction 
D)  two of the same ions or molecules in opposite directions 
E)  one specific ion or molecule

Question 3

Determine the sequence of the following events in a cell after exposure of the cell to a chemical signal. (1) increased synthesis of a protein
(2) the chemical signal combined with a cytoplasmic receptor
(3) an increase in the nuclear concentration of the chemical
(4) an increase in mRNA synthesis
(5) genes are activated

Accepted Answer

A)  1, 2, 3, 4, 5 
B)  2, 1, 3, 5, 4 
C)  2, 4, 5, 3, 2 
D)  2, 3, 5, 4, 1 
E)  2, 3, 4, 5, 1 
A)  1, 2, 3, 4, 5 
B)  2, 1, 3, 5, 4 
C)  2, 4, 5, 3, 2 
D)  2, 3, 5, 4, 1 
E)  2, 3, 4, 5, 1

Question 4

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "C" relative to the RBC?

Accepted Answer

A)  isotonic solution 
B)  crenated 
C)  hypertonic solution 
D)  hemolyzed 
E)  hypotonic solution 
A)  isotonic solution 
B)  crenated 
C)  hypertonic solution 
D)  hemolyzed 
E)  hypotonic solution

Question 5

Plasma membrane phospholipids

Accepted Answer

A)  have tails that face the exterior of the membrane. 
B)  have a hydrophilic head and hydrophobic tails. 
C)  have polar (charged) tails. 
D)  are arranged in a single layer. 
E)  are 95% cholesterol. 
A)  have tails that face the exterior of the membrane. 
B)  have a hydrophilic head and hydrophobic tails. 
C)  have polar (charged) tails. 
D)  are arranged in a single layer. 
E)  are 95% cholesterol.

Question 6

A DNA nucleotide sequence that signals the beginning of a gene is called a

Accepted Answer

A)  promoter. 
B)  transcription factor. 
C)  terminator. 
D)  RNA polymerase. 
E)  triplet. 
A)  promoter. 
B)  transcription factor. 
C)  terminator. 
D)  RNA polymerase. 
E)  triplet.

Question 7

Experimental manipulation to increase the energy output of the cell might include

Accepted Answer

A)  increasing protein synthesis. 
B)  rupturing the lysosomes in the cell. 
C)  decreasing nuclear size. 
D)  increasing the number of mitochondria. 
E)  removing some of the ribosomes. 
A)  increasing protein synthesis. 
B)  rupturing the lysosomes in the cell. 
C)  decreasing nuclear size. 
D)  increasing the number of mitochondria. 
E)  removing some of the ribosomes.

In prophase

A symporter will transport _____ across the cell membrane.

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "C" relative to the RBC?

Plasma membrane phospholipids

A DNA nucleotide sequence that signals the beginning of a gene is called a

Experimental manipulation to increase the energy output of the cell might include

The Human Organism

The Chemical Basis of Life

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters

Exam 3: Cell Biology

In prophase

A symporter will transport _____ across the cell membrane.

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "C" relative to the RBC?

Plasma membrane phospholipids

A DNA nucleotide sequence that signals the beginning of a gene is called a

Experimental manipulation to increase the energy output of the cell might include

The Human Organism

The Chemical Basis of Life

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters