Question 1

Which of these molecules is correctly matched with its method of movement through the cell membrane?

Accepted Answer

A)  lipid-soluble molecules - pass through membrane channels 
B)  small, water-soluble molecules (ions) - dissolve in double phospholipid layer 
C)  large, water-soluble molecules - transported by carrier-mediated processes 
D)  glucose and amino acid molecules - pass through membrane channels 
E)  All of these are correctly paired. 
A)  lipid-soluble molecules - pass through membrane channels 
B)  small, water-soluble molecules (ions) - dissolve in double phospholipid layer 
C)  large, water-soluble molecules - transported by carrier-mediated processes 
D)  glucose and amino acid molecules - pass through membrane channels 
E)  All of these are correctly paired.

Question 2

What organelle contains the chromosomes?

Accepted Answer

A)  centrioles 
B)  ribosomes 
C)  lysosomes 
D)  nucleus 
E)  mitochondria 
A)  centrioles 
B)  ribosomes 
C)  lysosomes 
D)  nucleus 
E)  mitochondria

Question 3

Which of the following is NOT a type of cancer therapy?

Accepted Answer

A)  use of drugs to increase the blood supply to the tumor 
B)  killing tissue with lasers 
C)  surgical removal of the tissue 
D)  killing tissue with x-rays 
E)  use of drugs to kill cells 
A)  use of drugs to increase the blood supply to the tumor 
B)  killing tissue with lasers 
C)  surgical removal of the tissue 
D)  killing tissue with x-rays 
E)  use of drugs to kill cells

Question 4

Which of the following will increase the rate of diffusion?

Accepted Answer

A)  an increase in the viscosity of the solvent 
B)  an increase in the temperature 
C)  an increase in the molecular weight of the diffusing particles 
D)  an increase in the distance the molecules have to travel 
E)  All of these choices are correct. 
A)  an increase in the viscosity of the solvent 
B)  an increase in the temperature 
C)  an increase in the molecular weight of the diffusing particles 
D)  an increase in the distance the molecules have to travel 
E)  All of these choices are correct.

Question 5

Which of the following is CORRECTLY matched with its function?

Accepted Answer

A)  cell identity molecules - are primarily steroids 
B)  receptor proteins - move specific ions or molecules using ATP 
C)  carrier proteins - move bound ions or molecules from one side of the membrane to the other 
D)  channel proteins - catalyze chemical reactions inside the cell 
E)  peripheral proteins - penetrate the lipid bilayer from one surface to the other 
A)  cell identity molecules - are primarily steroids 
B)  receptor proteins - move specific ions or molecules using ATP 
C)  carrier proteins - move bound ions or molecules from one side of the membrane to the other 
D)  channel proteins - catalyze chemical reactions inside the cell 
E)  peripheral proteins - penetrate the lipid bilayer from one surface to the other

Question 6

Chromosomes begin migrating towards poles of the cell during

Accepted Answer

A)  anaphase. 
B)  interphase. 
C)  telophase. 
D)  metaphase. 
E)  prophase. 
A)  anaphase. 
B)  interphase. 
C)  telophase. 
D)  metaphase. 
E)  prophase.

Question 7

What is the term used to describe a small generic membrane-bound structure that transports substances to the plasma membrane for release by exocytosis?

Accepted Answer

A)  Secretory vesicle 
B)  Proteosome granule 
C)  Chromatid 
D)  Organelle 
E)  Centrosome 
A)  Secretory vesicle 
B)  Proteosome granule 
C)  Chromatid 
D)  Organelle 
E)  Centrosome

Question 8

The sequence of nucleotides in a messenger RNA molecule is needed to determine the sequence of

Accepted Answer

A)  amino acids in a protein. 
B)  nucleotides in the anticodons of tRNA. 
C)  nucleotides in a gene. 
D)  amino acids in DNA. 
E)  codons in DNA. 
A)  amino acids in a protein. 
B)  nucleotides in the anticodons of tRNA. 
C)  nucleotides in a gene. 
D)  amino acids in DNA. 
E)  codons in DNA.

Question 9

Plasma membrane phospholipids

Accepted Answer

A)  have nonpolar fatty acid tails. 
B)  form a bilayer. 
C)  have polar phosphate heads. 
D)  create a selectively permeable barrier. 
E)  All of these choices are correct. 
A)  have nonpolar fatty acid tails. 
B)  form a bilayer. 
C)  have polar phosphate heads. 
D)  create a selectively permeable barrier. 
E)  All of these choices are correct.

Question 10

What cell type would have many Golgi apparatus?

Accepted Answer

A)  liver cells that detoxify hydrogen peroxide 
B)  mucus cell (secretes mucus) 
C)  fibroblast (makes protein fibers) 
D)  cardiac muscle cells (require large amounts of ATP) 
E)  white blood cell, a phagocyte 
A)  liver cells that detoxify hydrogen peroxide 
B)  mucus cell (secretes mucus) 
C)  fibroblast (makes protein fibers) 
D)  cardiac muscle cells (require large amounts of ATP) 
E)  white blood cell, a phagocyte

Question 11

Portions of pre-mRNA that do NOT code for parts of a protein are called

Accepted Answer

A)  introns. 
B)  start codons. 
C)  exons. 
D)  stop codons. 
E)  All of these except exons do not code for parts of a protein. 
A)  introns. 
B)  start codons. 
C)  exons. 
D)  stop codons. 
E)  All of these except exons do not code for parts of a protein.

Question 12

-Answer these questions about chromosome structure. What does "B" represent?

Accepted Answer

A)  chromatid 
B)  chromatin 
C)  proteins 
D)  chromosome 
E)  centromere 
A)  chromatid 
B)  chromatin 
C)  proteins 
D)  chromosome 
E)  centromere

Question 13

The cytoplasm is made up of

Accepted Answer

A)  organelles. 
B)  Both cytogel and organelles. 
C)  Both cytosol and organelles. 
D)  cytosol. 
E)  cytogel. 
A)  organelles. 
B)  Both cytogel and organelles. 
C)  Both cytosol and organelles. 
D)  cytosol. 
E)  cytogel.

Question 14

Which of the following organelles may or may not have ribosomes attached?

Accepted Answer

A)  nucleolus 
B)  peroxisomes 
C)  endoplasmic reticulum 
D)  flagellum 
E)  Golgi apparatus 
A)  nucleolus 
B)  peroxisomes 
C)  endoplasmic reticulum 
D)  flagellum 
E)  Golgi apparatus

Question 15

-What structure does "E" represent on the diagram of the plasma membrane?

Accepted Answer

A)  membrane channel protein 
B)  receptor protein 
C)  internal membrane surface 
D)  peripheral protein 
E)  phospholipid bilayer 
A)  membrane channel protein 
B)  receptor protein 
C)  internal membrane surface 
D)  peripheral protein 
E)  phospholipid bilayer

Question 16

A cancer that is able to spread and become worse is called

Accepted Answer

A)  benign 
B)  metastasis 
C)  malignant 
D)  carcinoma 
E)  sarcoma 
A)  benign 
B)  metastasis 
C)  malignant 
D)  carcinoma 
E)  sarcoma

Question 17

You are looking at a cell with the electron microscope and you notice the following characteristics: presence of many mitochondria and lysosomes; few, if any, Golgi apparatus; and many ribosomes. Which of the following is the most likely function of that cell?

Accepted Answer

A)  DNA replication 
B)  absorption of nutrients 
C)  intracellular digestion 
D)  modification of protein 
E)  secretion of lipids 
A)  DNA replication 
B)  absorption of nutrients 
C)  intracellular digestion 
D)  modification of protein 
E)  secretion of lipids

Question 18

A mitochondrial disease is passed to offspring via the father.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 19

What organelles are small vacuoles containing oxidative enzymes?

Accepted Answer

A)  peroxisomes 
B)  flagellum 
C)  endoplasmic reticulum 
D)  Golgi apparatus 
E)  nucleolus 
A)  peroxisomes 
B)  flagellum 
C)  endoplasmic reticulum 
D)  Golgi apparatus 
E)  nucleolus

Question 20

Cells produce and respond to chemical and electrical signals as a means of

Accepted Answer

A)  synthesizing. 
B)  communicating. 
C)  metabolizing. 
D)  using energy. 
E)  reproducing. 
A)  synthesizing. 
B)  communicating. 
C)  metabolizing. 
D)  using energy. 
E)  reproducing.

Exam 3: Cell Biology

Which of these molecules is correctly matched with its method of movement through the cell membrane?

What organelle contains the chromosomes?

Which of the following is NOT a type of cancer therapy?

Which of the following will increase the rate of diffusion?

Which of the following is CORRECTLY matched with its function?

Chromosomes begin migrating towards poles of the cell during

What is the term used to describe a small generic membrane-bound structure that transports substances to the plasma membrane for release by exocytosis?

The sequence of nucleotides in a messenger RNA molecule is needed to determine the sequence of

Plasma membrane phospholipids

What cell type would have many Golgi apparatus?

Portions of pre-mRNA that do NOT code for parts of a protein are called

-Answer these questions about chromosome structure. What does "B" represent?

The cytoplasm is made up of

Which of the following organelles may or may not have ribosomes attached?

-What structure does "E" represent on the diagram of the plasma membrane?

A cancer that is able to spread and become worse is called

You are looking at a cell with the electron microscope and you notice the following characteristics: presence of many mitochondria and lysosomes; few, if any, Golgi apparatus; and many ribosomes. Which of the following is the most likely function of that cell?

A mitochondrial disease is passed to offspring via the father.

What organelles are small vacuoles containing oxidative enzymes?

Cells produce and respond to chemical and electrical signals as a means of

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

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