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

Which of the following organelles are incorrectly paired with their location within the cell?

Accepted Answer

A)  peroxisome - within the cytoplasm 
B)  microvilli - on the cell surface 
C)  golgi apparatus - within the cytoplasm 
D)  nucleolus - within the cytoplasm 
E)  rough endoplasmic reticulum - within the cytoplasm of the cell 
A)  peroxisome - within the cytoplasm 
B)  microvilli - on the cell surface 
C)  golgi apparatus - within the cytoplasm 
D)  nucleolus - within the cytoplasm 
E)  rough endoplasmic reticulum - within the cytoplasm of the cell

Question 3

The nucleic acid that is synthesized in the nucleus from a DNA template is

Accepted Answer

A)  tRNA. 
B)  mRNA. 
C)  rRNA. 
D)  All of these are correct. 
A)  tRNA. 
B)  mRNA. 
C)  rRNA. 
D)  All of these are correct.

Question 4

Given these events: 1) DNA transcribes mRNA.
2) tRNA pairs with mRNA.
3) mRNA passes from nucleus into cytoplasm.
4) Peptide bonds are formed.
The most correct sequence for the occurrence of these events in protein synthesis is

Accepted Answer

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

Question 5

All of the following are protein components of the cytoskeleton EXCEPT:

Accepted Answer

A)  microtubules 
B)  microfilaments 
C)  intermediate filaments 
D)  centrosomes 
E)  All of these are components of the cytoskeleton. 
A)  microtubules 
B)  microfilaments 
C)  intermediate filaments 
D)  centrosomes 
E)  All of these are components of the cytoskeleton.

Question 6

______________ is a specific type of endocytosis that is responsible for bringing liquids and small particles into cells inside of small vesicles.

Accepted Answer

A)  Phagocytosis 
B)  Pinocytosis 
C)  Receptor mediated endocytosis 
D)  Exocytosis
Learning 
A)  Phagocytosis 
B)  Pinocytosis 
C)  Receptor mediated endocytosis 
D)  Exocytosis
Learning

Question 7

____________ are a component of the cytoskeleton that help to provide support, assist in cell division and help to form cilia.

Accepted Answer

A)  Microtubules 
B)  Microfilaments 
C)  Intermediate filaments 
D)  Centrosomes 
A)  Microtubules 
B)  Microfilaments 
C)  Intermediate filaments 
D)  Centrosomes

Question 8

The type of membrane transport that involves the ingestion of solid particles by vesicle formation is

Accepted Answer

A)  simple diffusion. 
B)  exocytosis. 
C)  facilitated diffusion. 
D)  active transport. 
E)  endocytosis. 
A)  simple diffusion. 
B)  exocytosis. 
C)  facilitated diffusion. 
D)  active transport. 
E)  endocytosis.

Question 9

The force required to prevent the movement of water across a selectively permeable membrane is the

Accepted Answer

A)  hydrostatic pressure. 
B)  diffusion pressure. 
C)  osmotic pressure. 
D)  membrane pressure. 
E)  selective pressure. 
A)  hydrostatic pressure. 
B)  diffusion pressure. 
C)  osmotic pressure. 
D)  membrane pressure. 
E)  selective pressure.

Question 10

Apoptosis decreases the number of cells within various tissues of the body.

Accepted Answer

A) True 
 B)False

Question 11

Secretory vesicles pinch off from

Accepted Answer

A)  the Golgi apparatus. 
B)  ribosomes. 
C)  lysosomes. 
D)  smooth endoplasmic reticulum 
E)  the nucleus. 
A)  the Golgi apparatus. 
B)  ribosomes. 
C)  lysosomes. 
D)  smooth endoplasmic reticulum 
E)  the nucleus.

Question 12

The information in the nucleic acid, ____________, is carried in the multiple groups of three nucleotides called codons.

Accepted Answer

A)  tRNA 
B)  mRNA 
C)  rRNA 
D)  All of these terms are acceptable. 
A)  tRNA 
B)  mRNA 
C)  rRNA 
D)  All of these terms are acceptable.

Question 13

Which of the following organelles are incorrectly paired with their location within the cell?

Accepted Answer

A)  nucleolus - within the nucleus 
B)  cilia - on the cell surface 
C)  golgi apparatus - on the cell surface 
D)  microtubules - within the cytoplasm 
E)  smooth endoplasmic reticulum - within the cytoplasm of the cell 
A)  nucleolus - within the nucleus 
B)  cilia - on the cell surface 
C)  golgi apparatus - on the cell surface 
D)  microtubules - within the cytoplasm 
E)  smooth endoplasmic reticulum - within the cytoplasm of the cell

Question 14

Secondary active transport

Accepted Answer

A)  involves the use of endocytosis. 
B)  involves the active transport of one substance to establish a concentration gradient thereby providing energy for the movement of a second substance. 
C)  involves the use of exocytosis. 
D)  involves the passive transport of one substance to establish a concentration gradient thereby providing energy for the movement of a second substance. 
E)  involves the facilitated transport of one substance which then 'pulls' along a second substance. 
A)  involves the use of endocytosis. 
B)  involves the active transport of one substance to establish a concentration gradient thereby providing energy for the movement of a second substance. 
C)  involves the use of exocytosis. 
D)  involves the passive transport of one substance to establish a concentration gradient thereby providing energy for the movement of a second substance. 
E)  involves the facilitated transport of one substance which then 'pulls' along a second substance.

Question 15

Transcription

Accepted Answer

A)  takes place in the nucleus of the cell. 
B)  occurs when double strands of DNA separate, and RNA nucleotides pair with DNA nucleotides. 
C)  produces mRNA. 
D)  determines the sequence of codons on a particular mRNA molecule. 
E)  All of these are true of transcription. 
A)  takes place in the nucleus of the cell. 
B)  occurs when double strands of DNA separate, and RNA nucleotides pair with DNA nucleotides. 
C)  produces mRNA. 
D)  determines the sequence of codons on a particular mRNA molecule. 
E)  All of these are true of transcription.

Question 16

What term dealing with cancer means "spreading to a new site"?

Accepted Answer

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

Question 17

The __________ endoplasmic reticulum manufactures lipids and carbohydrates where as the __________ endoplasmic reticulum assists with the synthesis of proteins and send them to the Golgi apparatus.

Accepted Answer

A)  smooth ; curved 
B)  rough; smooth 
C)  curved; smooth 
D)  smooth; rough 
A)  smooth ; curved 
B)  rough; smooth 
C)  curved; smooth 
D)  smooth; rough

Question 18

Phospholipid molecules

Accepted Answer

A)  have a phosphate-containing end that is nonpolar. 
B)  have a fatty acid end that is polar. 
C)  are arranged in a double layer in the cell membrane. 
D)  are not found in the cell membrane. 
E)  have all of these characteristics. 
A)  have a phosphate-containing end that is nonpolar. 
B)  have a fatty acid end that is polar. 
C)  are arranged in a double layer in the cell membrane. 
D)  are not found in the cell membrane. 
E)  have all of these characteristics.

Question 19

Which of the following statements is TRUE concerning the cell membrane?

Accepted Answer

A)  Cholesterol within the membrane gives it added strength and flexibility. 
B)  Receptor molecules are embedded in the membrane for intercellular communication. 
C)  Carbohydrates bind to protein molecules thereby modifying the proteins function as a membrane channel. 
D)  Receptor molecules embedded in the membrane are involved in cellular recognition. 
E)  All of these statements are true of cell membranes. 
A)  Cholesterol within the membrane gives it added strength and flexibility. 
B)  Receptor molecules are embedded in the membrane for intercellular communication. 
C)  Carbohydrates bind to protein molecules thereby modifying the proteins function as a membrane channel. 
D)  Receptor molecules embedded in the membrane are involved in cellular recognition. 
E)  All of these statements are true of cell membranes.

Question 20

This diagram best shows a cell during _________ of mitosis.

Accepted Answer

A)  anaphase 
B)  metaphase 
C)  prophase 
D)  telophase 
A)  anaphase 
B)  metaphase 
C)  prophase 
D)  telophase

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

Which of the following organelles are incorrectly paired with their location within the cell?

The nucleic acid that is synthesized in the nucleus from a DNA template is

Given these events: 1) DNA transcribes mRNA. 2) tRNA pairs with mRNA. 3) mRNA passes from nucleus into cytoplasm. 4) Peptide bonds are formed. The most correct sequence for the occurrence of these events in protein synthesis is

All of the following are protein components of the cytoskeleton EXCEPT:

______________ is a specific type of endocytosis that is responsible for bringing liquids and small particles into cells inside of small vesicles.

____________ are a component of the cytoskeleton that help to provide support, assist in cell division and help to form cilia.

The type of membrane transport that involves the ingestion of solid particles by vesicle formation is

The force required to prevent the movement of water across a selectively permeable membrane is the

Apoptosis decreases the number of cells within various tissues of the body.

Secretory vesicles pinch off from

The information in the nucleic acid, ____________, is carried in the multiple groups of three nucleotides called codons.

Which of the following organelles are incorrectly paired with their location within the cell?

Secondary active transport

Transcription

What term dealing with cancer means "spreading to a new site"?

The endoplasmic reticulum manufactures lipids and carbohydrates where as the endoplasmic reticulum assists with the synthesis of proteins and send them to the Golgi apparatus.

Phospholipid molecules

Which of the following statements is TRUE concerning the cell membrane?

This diagram best shows a cell during _________ of mitosis.

The Human Organism

The Chemical Basis of Life

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters

Exam 3: Cell Structures and Their Functions

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

Which of the following organelles are incorrectly paired with their location within the cell?

The nucleic acid that is synthesized in the nucleus from a DNA template is

Given these events: 1) DNA transcribes mRNA. 2) tRNA pairs with mRNA. 3) mRNA passes from nucleus into cytoplasm. 4) Peptide bonds are formed. The most correct sequence for the occurrence of these events in protein synthesis is

All of the following are protein components of the cytoskeleton EXCEPT:

______________ is a specific type of endocytosis that is responsible for bringing liquids and small particles into cells inside of small vesicles.

____________ are a component of the cytoskeleton that help to provide support, assist in cell division and help to form cilia.

The type of membrane transport that involves the ingestion of solid particles by vesicle formation is

The force required to prevent the movement of water across a selectively permeable membrane is the

Apoptosis decreases the number of cells within various tissues of the body.

Secretory vesicles pinch off from

The information in the nucleic acid, ____________, is carried in the multiple groups of three nucleotides called codons.

Which of the following organelles are incorrectly paired with their location within the cell?

Secondary active transport

Transcription

What term dealing with cancer means "spreading to a new site"?

The __________ endoplasmic reticulum manufactures lipids and carbohydrates where as the __________ endoplasmic reticulum assists with the synthesis of proteins and send them to the Golgi apparatus.

Phospholipid molecules

Which of the following statements is TRUE concerning the cell membrane?

This diagram best shows a cell during _________ of mitosis.

The Human Organism

The Chemical Basis of Life

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters

The endoplasmic reticulum manufactures lipids and carbohydrates where as the endoplasmic reticulum assists with the synthesis of proteins and send them to the Golgi apparatus.