Question 1

Rough ER is most abundant in cells specialized for steroid production.

Accepted Answer

A) True 
 B)False

Question 2

____________________ RNA carries amino acids to the sites of protein synthesis in the cell.

Accepted Answer

The answer of ____________________ RNA carries amino acids to the...

Question 3

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.)
a.transport vesicles
b.coated vesicles
c.secretory vesicles
-fuse with and enter the Golgi complex

Accepted Answer

The answer of Match the vesicles, labelled a. through c.,...

Question 4

Why can't the large, negatively charged intracellular proteins (A-) permeate the cell membrane?

Accepted Answer

A) They are greater than 0.8 nm in diameter and are not lipid soluble. 
B) There are carriers for them. 
C)  No concentration or electrical gradient exists for them. 
D)  There are no positively charged ions to carry them. 
A) They are greater than 0.8 nm in diameter and are not lipid soluble. 
B) There are carriers for them. 
C)  No concentration or electrical gradient exists for them. 
D)  There are no positively charged ions to carry them.

Question 5

A recording electrode is placed into a nerve cell to measure the membrane potential at a particular point. When the physiologist glances at the recording and sees that the membrane at that instant has a potential of +15 mV, she knows that the portion of the membrane being recorded is which of the following?

Accepted Answer

A) in the normal resting state 
B) in the reversal phase of an action potential when the inside of the cell becomes more positive than the outside 
C)  more permeable to Ca2+ than normal 
D)  in the after hyperpolarization phase of an action potential 
A) in the normal resting state 
B) in the reversal phase of an action potential when the inside of the cell becomes more positive than the outside 
C)  more permeable to Ca2+ than normal 
D)  in the after hyperpolarization phase of an action potential

Question 6

Gap junctions function as channels between cells.

Accepted Answer

A) True 
 B)False

Question 7

ADP and Pi are formed from the breakdown of the molecule ____________________.

Accepted Answer

adenosine

Question 8

The ____________________, or ____________________, of a nerve cell is a single, elongated tubular process that conducts action potentials away from the cell body and eventually terminates at other cells.

Accepted Answer

axon; nerv

Question 9

The carbohydrate found in plasma membranes is believed to be involved in the aggregation of cells to form tissue.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following are receptor sites on the outer surface of the plasma membrane?

Accepted Answer

A) ATP 
B) carbohydrates 
C)  cyclic AMP 
D)  proteins
For the following questions, assume a hypothetical postsynaptic neuron has three presynaptic inputs: X, Y, and Z. Also assume that presynaptic neurons Y and Z are excitatory. 
A) ATP 
B) carbohydrates 
C)  cyclic AMP 
D)  proteins
For the following questions, assume a hypothetical postsynaptic neuron has three presynaptic inputs: X, Y, and Z. Also assume that presynaptic neurons Y and Z are excitatory.

Question 11

In active transport, ATP energy is used in the phosphorylation-dephosphorylation cycle of the carrier.

Accepted Answer

A) True 
 B)False

Question 12

According to the fluid mosaic model of membrane structure, the plasma membrane consists primarily of a bilayer of mobile phospholipid molecules studded with an ever-changing mosaic pattern of proteins.

Accepted Answer

A) True 
 B)False

Question 13

The ____________________ ER is the central packaging and discharge site for molecules to be transported from the ER.

Accepted Answer

The answer of The ____________________ ER is the central packaging...

Question 14

The Na+ and K+ channels that open and close during an action potential are voltage-gated channels.

Accepted Answer

A) True 
 B)False

Question 15

Proteins synthesized by the endoplasmic reticulum become permanently separated from the cytosol as soon as they have been synthesized.

Accepted Answer

A) True 
 B)False

Question 16

Describe the pathway that newly synthesized polypeptides take en route for secretion.

Accepted Answer

After being synthesized on ribosomes in

Question 17

Describe some of the ways in which drugs or disease can influence the nervous system at the neuronal level.

Accepted Answer

Drugs and diseases can influence the ner

Question 18

The only way in which a neurotransmitter-receptor combination can influence the postsynaptic cell is to directly alter its permeability to specific ions.

Accepted Answer

A) True 
 B)False

Question 19

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.)
a.microtubules
b.microfilaments
c.intermediate filaments
d.micro trabecular lattice
-essential for creating and maintaining an asymmetrical cell shape

Accepted Answer

The answer of Match the terms, labelled a. through d.,...

Question 20

Assume that a membrane that is permeable to Na+ but not to Cl- separates two solutions. The concentration of sodium chloride on side 1 is much higher than on side 2. Which of the following ionic movements will take place?

Accepted Answer

A) Na+ will move until its concentration gradient is dissipated . 
B) Cl- will move down its concentration gradient from side 1 to side 2. 
C)  A membrane potential, negative on side 1, will develop. 
D)  A membrane potential, positive on side 1, will develop. 
A) Na+ will move until its concentration gradient is dissipated . 
B) Cl- will move down its concentration gradient from side 1 to side 2. 
C)  A membrane potential, negative on side 1, will develop. 
D)  A membrane potential, positive on side 1, will develop.

Rough ER is most abundant in cells specialized for steroid production.

____________________ RNA carries amino acids to the sites of protein synthesis in the cell.

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.) a.transport vesicles b.coated vesicles c.secretory vesicles -fuse with and enter the Golgi complex

Why can't the large, negatively charged intracellular proteins (A^-) permeate the cell membrane?

Gap junctions function as channels between cells.

ADP and P_i are formed from the breakdown of the molecule ____________________.

The , or , of a nerve cell is a single, elongated tubular process that conducts action potentials away from the cell body and eventually terminates at other cells.

The carbohydrate found in plasma membranes is believed to be involved in the aggregation of cells to form tissue.

Which of the following are receptor sites on the outer surface of the plasma membrane?

In active transport, ATP energy is used in the phosphorylation-dephosphorylation cycle of the carrier.

According to the fluid mosaic model of membrane structure, the plasma membrane consists primarily of a bilayer of mobile phospholipid molecules studded with an ever-changing mosaic pattern of proteins.

The ____________________ ER is the central packaging and discharge site for molecules to be transported from the ER.

The Na⁺ and K⁺ channels that open and close during an action potential are voltage-gated channels.

Proteins synthesized by the endoplasmic reticulum become permanently separated from the cytosol as soon as they have been synthesized.

Describe the pathway that newly synthesized polypeptides take en route for secretion.

Describe some of the ways in which drugs or disease can influence the nervous system at the neuronal level.

The only way in which a neurotransmitter-receptor combination can influence the postsynaptic cell is to directly alter its permeability to specific ions.

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.) a.microtubules b.microfilaments c.intermediate filaments d.micro trabecular lattice -essential for creating and maintaining an asymmetrical cell shape

Assume that a membrane that is permeable to Na⁺ but not to Cl^- separates two solutions. The concentration of sodium chloride on side 1 is much higher than on side 2. Which of the following ionic movements will take place?

Introduction to Physiology and Homeostasis

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 2: Cell Physiology

Rough ER is most abundant in cells specialized for steroid production.

____________________ RNA carries amino acids to the sites of protein synthesis in the cell.

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.) a.transport vesicles b.coated vesicles c.secretory vesicles -fuse with and enter the Golgi complex

Why can't the large, negatively charged intracellular proteins (A-) permeate the cell membrane?

Gap junctions function as channels between cells.

ADP and Pi are formed from the breakdown of the molecule ____________________.

The ____________________, or ____________________, of a nerve cell is a single, elongated tubular process that conducts action potentials away from the cell body and eventually terminates at other cells.

The carbohydrate found in plasma membranes is believed to be involved in the aggregation of cells to form tissue.

Which of the following are receptor sites on the outer surface of the plasma membrane?

In active transport, ATP energy is used in the phosphorylation-dephosphorylation cycle of the carrier.

According to the fluid mosaic model of membrane structure, the plasma membrane consists primarily of a bilayer of mobile phospholipid molecules studded with an ever-changing mosaic pattern of proteins.

The ____________________ ER is the central packaging and discharge site for molecules to be transported from the ER.

The Na+ and K+ channels that open and close during an action potential are voltage-gated channels.

Proteins synthesized by the endoplasmic reticulum become permanently separated from the cytosol as soon as they have been synthesized.

Describe the pathway that newly synthesized polypeptides take en route for secretion.

Describe some of the ways in which drugs or disease can influence the nervous system at the neuronal level.

The only way in which a neurotransmitter-receptor combination can influence the postsynaptic cell is to directly alter its permeability to specific ions.

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.) a.microtubules b.microfilaments c.intermediate filaments d.micro trabecular lattice -essential for creating and maintaining an asymmetrical cell shape

Assume that a membrane that is permeable to Na+ but not to Cl- separates two solutions. The concentration of sodium chloride on side 1 is much higher than on side 2. Which of the following ionic movements will take place?

Introduction to Physiology and Homeostasis

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Why can't the large, negatively charged intracellular proteins (A^-) permeate the cell membrane?

ADP and P_i are formed from the breakdown of the molecule ____________________.

The , or , of a nerve cell is a single, elongated tubular process that conducts action potentials away from the cell body and eventually terminates at other cells.

The Na⁺ and K⁺ channels that open and close during an action potential are voltage-gated channels.

Assume that a membrane that is permeable to Na⁺ but not to Cl^- separates two solutions. The concentration of sodium chloride on side 1 is much higher than on side 2. Which of the following ionic movements will take place?