Question 1

Which of the following statements is correct about vaults?

Accepted Answer

A) They act as a selective barrier between cellular contents and extracellular fluid. 
B) Their shape tends to be oval or rounded. 
C)  They serve as cellular trucks for transport from the nucleus to the cytoplasm. 
D)  They store excess nutrients. 
A) They act as a selective barrier between cellular contents and extracellular fluid. 
B) Their shape tends to be oval or rounded. 
C)  They serve as cellular trucks for transport from the nucleus to the cytoplasm. 
D)  They store excess nutrients.

Question 2

____________________ is a protein responsible for pinching off an endocytic vesicle.

Accepted Answer

The answer of ____________________ is a protein responsible for pinching...

Question 3

Pinocytosis refers to the process of a cell engulfing a large, multimolecular particle and bringing the particle into the contents of the cell.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following statements is correct for phospholipids?

Accepted Answer

A) They consist of a polar, hydrophilic, phosphate-bearing head and two nonpolar hydrophobic, fatty-acid tails. 
B) They are lined as a single layer in membranes. 
C)  They serve as carrier molecules. 
D)  The small amount of membrane carbohydrate is located on the inner surface of the phospholipid layer. 
A) They consist of a polar, hydrophilic, phosphate-bearing head and two nonpolar hydrophobic, fatty-acid tails. 
B) They are lined as a single layer in membranes. 
C)  They serve as carrier molecules. 
D)  The small amount of membrane carbohydrate is located on the inner surface of the phospholipid layer.

Question 5

Products destined for intracellular transport are packaged in ____________________, whereas products for export are packaged in ____________________.

Accepted Answer

coated ves

Question 6

Spatial summation involves only one neuron influencing one other neuron.

Accepted Answer

A) True 
 B)False

Question 7

Oligodendrocytes form a regeneration tube to guide a regenerating nerve fibre to its proper destination.

Accepted Answer

A) True 
 B)False

Question 8

The carrier molecule actually moves from side to side through the membrane as it transports material across.

Accepted Answer

A) True 
 B)False

Question 9

DNA's genetic code is transcribed into messenger RNA.

Accepted Answer

A) True 
 B)False

Question 10

Lysosomes that have completed their digestive activities are known as ____________________.

Accepted Answer

The answer of Lysosomes that have completed their digestive activities...

Question 11

What does diffusion result from?

Accepted Answer

A) ATP-driven processes 
B) ion gradients 
C)  inherent kinetic energy of matter 
D)  selective permeability
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-driven processes 
B) ion gradients 
C)  inherent kinetic energy of matter 
D)  selective permeability
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 12

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.)
a.NaS1U1P1+S1S1P0
b.KS1U1P1+S1S1P0
c.AS1U1P1-S1S1P0
d.ClS1U1P1-S1S1P0
-anion to which the membrane is impermeable

Accepted Answer

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

Question 13

Osmosis does not occur if the concentration gradients for water and solutes are absent in a system.

Accepted Answer

A) True 
 B)False

Question 14

The two dark lines in the trilaminar appearance of the plasma membrane are believed to be caused by the preferential staining of the hydrophilic polar regions of the membrane constituents.

Accepted Answer

A) True 
 B)False

Question 15

Which of these statements is correct for NADH?

Accepted Answer

A) It is an energy carrier. 
B) It plays a role in cellular respiration. 
C)  It is used in glycolysis. 
D)  It is used in the citric acid cycle. 
A) It is an energy carrier. 
B) It plays a role in cellular respiration. 
C)  It is used in glycolysis. 
D)  It is used in the citric acid cycle.

Question 16

The rate of carrier-mediated transport is limited by which one of the following?

Accepted Answer

A) protein location in the membrane 
B) osmolarity 
C)  tonicity 
D)  competition with other molecules 
A) protein location in the membrane 
B) osmolarity 
C)  tonicity 
D)  competition with other molecules

Question 17

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
-organizes the glycolytic enzymes in a sequential alignment

Accepted Answer

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

Question 18

The Golgi complex is connected functionally to the ER.

Accepted Answer

A) True 
 B)False

Question 19

One glucose molecule is converted into two molecules of ____________________ by the end of glycolysis.

Accepted Answer

The answer of One glucose molecule is converted into two...

Question 20

Which of the following statements regarding membrane proteins is NOT correct?

Accepted Answer

A) Membrane protein channels are water-filled pathways. 
B) Membrane protein channels may be highly selective. 
C)  Membrane proteins may catalyze specific reactions. 
D)  CAMs serve as binding sites for specific ligands. 
A) Membrane protein channels are water-filled pathways. 
B) Membrane protein channels may be highly selective. 
C)  Membrane proteins may catalyze specific reactions. 
D)  CAMs serve as binding sites for specific ligands.

Which of the following statements is correct about vaults?

____________________ is a protein responsible for pinching off an endocytic vesicle.

Pinocytosis refers to the process of a cell engulfing a large, multimolecular particle and bringing the particle into the contents of the cell.

Which of the following statements is correct for phospholipids?

Products destined for intracellular transport are packaged in , whereas products for export are packaged in .

Spatial summation involves only one neuron influencing one other neuron.

Oligodendrocytes form a regeneration tube to guide a regenerating nerve fibre to its proper destination.

The carrier molecule actually moves from side to side through the membrane as it transports material across.

DNA's genetic code is transcribed into messenger RNA.

Lysosomes that have completed their digestive activities are known as ____________________.

What does diffusion result from?

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) a.Na⁺ b.K⁺ c.A^- d.Cl^- -anion to which the membrane is impermeable

Osmosis does not occur if the concentration gradients for water and solutes are absent in a system.

The two dark lines in the trilaminar appearance of the plasma membrane are believed to be caused by the preferential staining of the hydrophilic polar regions of the membrane constituents.

Which of these statements is correct for NADH?

The rate of carrier-mediated transport is limited by which one of the following?

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 -organizes the glycolytic enzymes in a sequential alignment

The Golgi complex is connected functionally to the ER.

One glucose molecule is converted into two molecules of ____________________ by the end of glycolysis.

Which of the following statements regarding membrane proteins is NOT correct?

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

Which of the following statements is correct about vaults?

____________________ is a protein responsible for pinching off an endocytic vesicle.

Pinocytosis refers to the process of a cell engulfing a large, multimolecular particle and bringing the particle into the contents of the cell.

Which of the following statements is correct for phospholipids?

Products destined for intracellular transport are packaged in ____________________, whereas products for export are packaged in ____________________.

Spatial summation involves only one neuron influencing one other neuron.

Oligodendrocytes form a regeneration tube to guide a regenerating nerve fibre to its proper destination.

The carrier molecule actually moves from side to side through the membrane as it transports material across.

DNA's genetic code is transcribed into messenger RNA.

Lysosomes that have completed their digestive activities are known as ____________________.

What does diffusion result from?

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) a.Na+ b.K+ c.A- d.Cl- -anion to which the membrane is impermeable

Osmosis does not occur if the concentration gradients for water and solutes are absent in a system.

The two dark lines in the trilaminar appearance of the plasma membrane are believed to be caused by the preferential staining of the hydrophilic polar regions of the membrane constituents.

Which of these statements is correct for NADH?

The rate of carrier-mediated transport is limited by which one of the following?

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 -organizes the glycolytic enzymes in a sequential alignment

The Golgi complex is connected functionally to the ER.

One glucose molecule is converted into two molecules of ____________________ by the end of glycolysis.

Which of the following statements regarding membrane proteins is NOT correct?

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

Products destined for intracellular transport are packaged in , whereas products for export are packaged in .

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) a.Na⁺ b.K⁺ c.A^- d.Cl^- -anion to which the membrane is impermeable