Question 1

The flexibility of a cell's membrane is determined by the ratio of _____________ to ___________.

Accepted Answer

A) protein,carbohydrate 
B) cholesterol,protein 
C) phospholipids,protein 
D) cholesterol,phospholipids 
A) protein,carbohydrate 
B) cholesterol,protein 
C) phospholipids,protein 
D) cholesterol,phospholipids

Question 2

Proteins that will be secreted by the cell are made on the granular endoplasmic reticulum.

Accepted Answer

A) True 
 B)False

Question 3

How are the phospholipids arranged to form the plasma membrane?

Accepted Answer

A) single layer with hydrophilic heads outward 
B) double layer with hydrophobic tails facing inward toward each other 
C) double layer with hydrophilic heads facing inward toward each other 
D) double layer with phospholipids on the outside and proteins on the inside 
A) single layer with hydrophilic heads outward 
B) double layer with hydrophobic tails facing inward toward each other 
C) double layer with hydrophilic heads facing inward toward each other 
D) double layer with phospholipids on the outside and proteins on the inside

Question 4

Introns serve no known purpose in protein synthesis.

Accepted Answer

A) True 
 B)False

Question 5

Alternative splicing can explain how 1 gene can code for several different proteins.

Accepted Answer

A) True 
 B)False

Question 6

The body cells that contain plasma membranes with highest cholesterol content are the muscle cells.

Accepted Answer

A) True 
 B)False

Question 7

The pericentriolar material is believed to be responsible for

Accepted Answer

A) cytoskeletal organization. 
B) centriole replication. 
C) kinetochore formation. 
D) centrosome formation. 
A) cytoskeletal organization. 
B) centriole replication. 
C) kinetochore formation. 
D) centrosome formation.

Question 8

Telomeres serve to

Accepted Answer

A) increase apoptosis. 
B) cap the ends of DNA and protect it from damage. 
C) break DNA and cause it to degrade. 
D) cause replication of genes. 
A) increase apoptosis. 
B) cap the ends of DNA and protect it from damage. 
C) break DNA and cause it to degrade. 
D) cause replication of genes.

Question 9

Chemicals stored in cells are called kinesins.

Accepted Answer

A) True 
 B)False

Question 10

Almost every body cell has a single nonmotile primary cilium with a "9+0" structure.

Accepted Answer

A) True 
 B)False

Question 11

Cells which will undergo apoptosis would contain large numbers or quantities of

Accepted Answer

A) centrioles. 
B) lysosomes. 
C) golgi apparatus. 
D) rough endoplasmic reticulum. 
A) centrioles. 
B) lysosomes. 
C) golgi apparatus. 
D) rough endoplasmic reticulum.

Question 12

Which of the following is NOT an example of an inclusion?

Accepted Answer

A) glycogen 
B) actin 
C) melanin 
D) triglycerides 
A) glycogen 
B) actin 
C) melanin 
D) triglycerides

Question 13

The duration of the cell cycle is decreased in response to increased amounts of

Accepted Answer

A) telomerase. 
B) cyclin 
C) DNA helicase. 
D) proteasome. 
A) telomerase. 
B) cyclin 
C) DNA helicase. 
D) proteasome.

Question 14

Chromosomes are lined up at the equator of the cell during this stage of mitosis:

Accepted Answer

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

Question 15

Which of the following is NOT true of siRNA?

Accepted Answer

A) It can silence up to 200 different mRNAs. 
B) It is short and double-stranded. 
C) It is processed by an enzyme called Dicer. 
D) It may be used to genetically suppress genes involved in disease. 
A) It can silence up to 200 different mRNAs. 
B) It is short and double-stranded. 
C) It is processed by an enzyme called Dicer. 
D) It may be used to genetically suppress genes involved in disease.

Question 16

Which of the following is NOT a function of membrane proteins?

Accepted Answer

A) transport 
B) energy production 
C) structural support 
D) receptors 
A) transport 
B) energy production 
C) structural support 
D) receptors

Question 17

Meiosis is only observed in the _____________ and ___________.

Accepted Answer

A) skin,finger nails 
B) ovaries,breasts 
C) testes,skin 
D) ovaries,testes 
A) skin,finger nails 
B) ovaries,breasts 
C) testes,skin 
D) ovaries,testes

Question 18

Crossing over occurs during

Accepted Answer

A) anaphase I of meiosis. 
B) metaphase of mitosis. 
C) prophase I of meiosis. 
D) metaphase II of meiosis. 
A) anaphase I of meiosis. 
B) metaphase of mitosis. 
C) prophase I of meiosis. 
D) metaphase II of meiosis.

Question 19

The process of recycling cellular proteins that had been released by exocytosis and brought back into the cell is called

Accepted Answer

A) mediated transport. 
B) active transport. 
C) autophagy. 
D) retrograde transport. 
A) mediated transport. 
B) active transport. 
C) autophagy. 
D) retrograde transport.

Question 20

The hydrophobic center of the plasma membrane will restrict the movement of water and fat-soluble substances through the membrane.

Accepted Answer

A) True 
 B)False

The flexibility of a cell's membrane is determined by the ratio of ___ to _.

Proteins that will be secreted by the cell are made on the granular endoplasmic reticulum.

How are the phospholipids arranged to form the plasma membrane?

Introns serve no known purpose in protein synthesis.

Alternative splicing can explain how 1 gene can code for several different proteins.

The body cells that contain plasma membranes with highest cholesterol content are the muscle cells.

The pericentriolar material is believed to be responsible for

Telomeres serve to

Chemicals stored in cells are called kinesins.

Almost every body cell has a single nonmotile primary cilium with a "9+0" structure.

Cells which will undergo apoptosis would contain large numbers or quantities of

Which of the following is NOT an example of an inclusion?

The duration of the cell cycle is decreased in response to increased amounts of

Chromosomes are lined up at the equator of the cell during this stage of mitosis:

Which of the following is NOT true of siRNA?

Which of the following is NOT a function of membrane proteins?

Meiosis is only observed in the ___ and _.

Crossing over occurs during

The process of recycling cellular proteins that had been released by exocytosis and brought back into the cell is called

The hydrophobic center of the plasma membrane will restrict the movement of water and fat-soluble substances through the membrane.

The Study of Body Function

Chemical Composition of the Body

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,heart and Circulation

Cardiac Output, blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Exam 3: Cell Structure and Genetic Control

The flexibility of a cell's membrane is determined by the ratio of _____________ to ___________.

Proteins that will be secreted by the cell are made on the granular endoplasmic reticulum.

How are the phospholipids arranged to form the plasma membrane?

Introns serve no known purpose in protein synthesis.

Alternative splicing can explain how 1 gene can code for several different proteins.

The body cells that contain plasma membranes with highest cholesterol content are the muscle cells.

The pericentriolar material is believed to be responsible for

Telomeres serve to

Chemicals stored in cells are called kinesins.

Almost every body cell has a single nonmotile primary cilium with a "9+0" structure.

Cells which will undergo apoptosis would contain large numbers or quantities of

Which of the following is NOT an example of an inclusion?

The duration of the cell cycle is decreased in response to increased amounts of

Chromosomes are lined up at the equator of the cell during this stage of mitosis:

Which of the following is NOT true of siRNA?

Which of the following is NOT a function of membrane proteins?

Meiosis is only observed in the _____________ and ___________.

Crossing over occurs during

The process of recycling cellular proteins that had been released by exocytosis and brought back into the cell is called

The hydrophobic center of the plasma membrane will restrict the movement of water and fat-soluble substances through the membrane.

The Study of Body Function

Chemical Composition of the Body

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,heart and Circulation

Cardiac Output, blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

The flexibility of a cell's membrane is determined by the ratio of ___ to _.

Meiosis is only observed in the ___ and _.