Question 1

What links sister chromatids together?

Accepted Answer

A) histones 
B) dyneins 
C) actins 
D) centromeres 
E) chromatins 
A) histones 
B) dyneins 
C) actins 
D) centromeres 
E) chromatins

Question 2

In Tay- Sachs Disease, which organelle contains the impaired enzymes?

Accepted Answer

A) lysosome 
B) mitochondria 
C) rough endoplasmic reticulum 
D) centriole 
E) Golgi apparatus 
A) lysosome 
B) mitochondria 
C) rough endoplasmic reticulum 
D) centriole 
E) Golgi apparatus

Question 3

The hormone insulin is a peptide hormone consisting of two polypeptides held together by disulfide bridges.

Accepted Answer

A) True 
 B)False

Question 4

What type of integral membrane protein spans the membrane, thereby allowing part of it to face the cytosol and another part to face the extracellular fluid?

Accepted Answer

A) transmembrane protein 
B) steroid receptor 
C) peripheral membrane protein 
D) glycoprotein 
E) paramembrane protein 
A) transmembrane protein 
B) steroid receptor 
C) peripheral membrane protein 
D) glycoprotein 
E) paramembrane protein

Question 5

Which of the following molecules will dissolve readily in water?

Accepted Answer

A) triglyceride 
B) cholesterol 
C) C6H14 
D) NaCl 
E) fatty acid 
A) triglyceride 
B) cholesterol 
C) C6H14 
D) NaCl 
E) fatty acid

Question 6

What organelle packages and directs proteins to their proper destination?

Accepted Answer

A) smooth endoplasmic reticulum 
B) ribosomes 
C) rough endoplasmic reticulum 
D) Golgi apparatus 
E) lysosomes 
A) smooth endoplasmic reticulum 
B) ribosomes 
C) rough endoplasmic reticulum 
D) Golgi apparatus 
E) lysosomes

Question 7

Which cytoskeletal proteins provide the structural support for microvilli?

Accepted Answer

A) microtubules 
B) intermediate filaments 
C) tight junctions 
D) centrioles 
E) microfilaments 
A) microtubules 
B) intermediate filaments 
C) tight junctions 
D) centrioles 
E) microfilaments

Question 8

Ubiquitin tags proteins for what purpose?

Accepted Answer

A) for synthesis to continue on the rough endoplasmic reticulum 
B) to protect from degradation by proteasomes 
C) for the protein to be secreted by exocytosis 
D) for the protein to enter the nucleus and alter transcription 
E) to mark for degradation by proteasomes 
A) for synthesis to continue on the rough endoplasmic reticulum 
B) to protect from degradation by proteasomes 
C) for the protein to be secreted by exocytosis 
D) for the protein to enter the nucleus and alter transcription 
E) to mark for degradation by proteasomes

Question 9

List the membranous organelles that are present within the cell and describe their function.

Accepted Answer

The endoplasmic reticulum is composed of

Question 10

During what phase of cell division do chromosomes align along the midline?

Accepted Answer

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

Question 11

An anticodon is

Accepted Answer

A) a three- nucleotide series on tRNA that is complementary to the mRNA to which it binds. 
B) the complement to the complement of the gene. 
C) the strand of DNA used to create mRNA. 
D) the code for a particular amino acid. 
E) the stop signal that does not code for an amino acid. 
A) a three- nucleotide series on tRNA that is complementary to the mRNA to which it binds. 
B) the complement to the complement of the gene. 
C) the strand of DNA used to create mRNA. 
D) the code for a particular amino acid. 
E) the stop signal that does not code for an amino acid.

Question 12

Vaults direct the development of the mitotic spindle during cell division.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is NOT a monosaccharide?

Accepted Answer

A) deoxyribose 
B) glucose 
C) lactose 
D) fructose 
E) galactose 
A) deoxyribose 
B) glucose 
C) lactose 
D) fructose 
E) galactose

Question 14

Cholesterol is the precursor molecule for all steroids in the body.

Accepted Answer

A) True 
 B)False

Question 15

What interaction between the phosphate and the carbohydrate of a nucleotide holds the backbone of a DNA strand together?

Accepted Answer

A) covalent bonds 
B) van der Waals forces 
C) hydrogen bonds 
D) disulfide bridges 
E) ionic bonds 
A) covalent bonds 
B) van der Waals forces 
C) hydrogen bonds 
D) disulfide bridges 
E) ionic bonds

Question 16

are proteins that fuse adjacent cells together to form a nearly impermeable barrier.

Accepted Answer

A) Tubulins 
B) Occludins 
C) Dyneins 
D) Connexins 
E) Cadherins 
A) Tubulins 
B) Occludins 
C) Dyneins 
D) Connexins 
E) Cadherins

Question 17

Where does RNA polymerase bind to initiate transcription?

Accepted Answer

A) hormone response element 
B) leader sequence 
C) promoter sequence 
D) initiation factor 
E) P subunit of the ribosome 
A) hormone response element 
B) leader sequence 
C) promoter sequence 
D) initiation factor 
E) P subunit of the ribosome

Question 18

According to the law of complementary base pairing, which of the following would be expected in any strand of DNA?

Accepted Answer

A) A = G and C = T 
B) G + C = T + A 
C) A = G 
D) A = C and T = G 
E) A + G = C + T 
A) A = G and C = T 
B) G + C = T + A 
C) A = G 
D) A = C and T = G 
E) A + G = C + T

Question 19

During replication, which strand of the new DNA is synthesized from the 5' to 3' strand of original DNA?

Accepted Answer

A) leading strand 
B) trailing strand 
C) beginning strand 
D) lagging strand 
E) ending strand 
A) leading strand 
B) trailing strand 
C) beginning strand 
D) lagging strand 
E) ending strand

Question 20

Bonding between Okazaki fragments forms the lagging strand of DNA.

Accepted Answer

A) True 
 B)False

Exam 2: The Cell: Structure and Function

What links sister chromatids together?

In Tay- Sachs Disease, which organelle contains the impaired enzymes?

The hormone insulin is a peptide hormone consisting of two polypeptides held together by disulfide bridges.

What type of integral membrane protein spans the membrane, thereby allowing part of it to face the cytosol and another part to face the extracellular fluid?

Which of the following molecules will dissolve readily in water?

What organelle packages and directs proteins to their proper destination?

Which cytoskeletal proteins provide the structural support for microvilli?

Ubiquitin tags proteins for what purpose?

List the membranous organelles that are present within the cell and describe their function.

During what phase of cell division do chromosomes align along the midline?

An anticodon is

Vaults direct the development of the mitotic spindle during cell division.

Which of the following is NOT a monosaccharide?

Cholesterol is the precursor molecule for all steroids in the body.

What interaction between the phosphate and the carbohydrate of a nucleotide holds the backbone of a DNA strand together?

are proteins that fuse adjacent cells together to form a nearly impermeable barrier.

Where does RNA polymerase bind to initiate transcription?

According to the law of complementary base pairing, which of the following would be expected in any strand of DNA?

During replication, which strand of the new DNA is synthesized from the 5' to 3' strand of original DNA?

Bonding between Okazaki fragments forms the lagging strand of DNA.

Introduction to Physiology

Cell Metabolism

Cell Membrane Transport

Chemical Messengers

The Endocrine System: Endocrine Glands and Hormone Actions

Nerve Cells and Electrical Signaling

Synaptic Transmission and Neural Integration

The Nervous System: Central Nervous System

The Nervous System: Sensory Systems

The Nervous System: Autonomic and Motor Systems

Muscle Physiology

The Cardiovascular System: Cardiac Function

The Cardiovascular System: Blood Vessels, Blood Flow, and Blood Pressure

The Cardiovascular System: Blood

The Respiratory System: Pulmonary Ventilation

The Respiratory System: Gas Exchange and the Regulation of Breathing

The Urinary System: Renal Function

The Urinary System: Fluid and Electrolyte Balance

The Gastrointestinal System

The Endocrine System: Regulation of Energy Metabolism and Growth

The Reproductive System

The Immune System

Diabetes Mellitus

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