Question 1

If presynaptic neurons X and Z are stimulated simultaneously, what change would you expect to occur in the postsynaptic neuron?

Accepted Answer

A) a single EPSP 
B) a single IPSP 
C)  temporal summation of EPSPs 
D)  IPSP and EPSP would cancel each other out, so there would be essentially no change in potential in the postsynaptic neuron. 
A) a single EPSP 
B) a single IPSP 
C)  temporal summation of EPSPs 
D)  IPSP and EPSP would cancel each other out, so there would be essentially no change in potential in the postsynaptic neuron.

Question 2

A given synapse is always excitatory or ____________________.

Accepted Answer

The answer of A given synapse is always excitatory or...

Question 3

Which of the following statements does NOT correctly describe cells?

Accepted Answer

A) All living cells have a membrane potential. 
B) Rapid changes in membrane potential in muscle cells trigger abnormal muscle twitching. 
C)  The cell's interior (ICF) is slightly more negative than ECF. 
D)  The cell's membrane is more permeable to K+ than to Na+. 
A) All living cells have a membrane potential. 
B) Rapid changes in membrane potential in muscle cells trigger abnormal muscle twitching. 
C)  The cell's interior (ICF) is slightly more negative than ECF. 
D)  The cell's membrane is more permeable to K+ than to Na+.

Question 4

Cations are attracted to a more positively charged area along an electrical gradient.

Accepted Answer

A) True 
 B)False

Question 5

Large, myelinated fibres can conduct impulses near the rate of ____________________ metres per second.

Accepted Answer

The answer of Large, myelinated fibres can conduct impulses near...

Question 6

Which of these statements regarding neuronal integration is NOT correct?

Accepted Answer

A) Inhibitory synapses cause postsynaptic hyperpolarization. 
B) An inhibitory synapse may result in a postsynaptic sodium channel opening. 
C)  Inhibitory synapse may result in increased postsynaptic potassium efflux. 
D)  An excitatory synapse causes depolarization of postsynaptic membranes. 
A) Inhibitory synapses cause postsynaptic hyperpolarization. 
B) An inhibitory synapse may result in a postsynaptic sodium channel opening. 
C)  Inhibitory synapse may result in increased postsynaptic potassium efflux. 
D)  An excitatory synapse causes depolarization of postsynaptic membranes.

Question 7

Which of the following is NOT a correct association?

Accepted Answer

A) ATP/high-energy bonds 
B) electron transport chain/mitochondrion 
C)  glycolysis/anaerobic 
D)  pyruvic acid/5-carbon molecule 
A) ATP/high-energy bonds 
B) electron transport chain/mitochondrion 
C)  glycolysis/anaerobic 
D)  pyruvic acid/5-carbon molecule

Question 8

____________________ is the hindrance to electrical charge movement.

Accepted Answer

The answer of ____________________ is the hindrance to electrical charge...

Question 9

Osmosis is which of these types of processes?

Accepted Answer

A) carrier-mediated transport 
B) diffusion 
C)  exocytosis 
D)  pinocytosis
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) carrier-mediated transport 
B) diffusion 
C)  exocytosis 
D)  pinocytosis
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 10

Match the terms, labelled a. through f., to their correct descriptions. (Options may be used more than once or not at all.)
a.plasma membrane
b.nucleus
c.cytoplasm
d.cytosol
e.organelles
f.cytoskeleton
-separates contents of the cell from its surroundings

Accepted Answer

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

Question 11

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 in greatest concentration in the ECF

Accepted Answer

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

Question 12

The two major parts of the cell's interior are the ____________________ and the ____________________.

Accepted Answer

nucleus; c

Question 13

Match the terms, labelled a. through c., with their characteristics, labelled 1. (Options may be used more than once or not at all.)
a.glycolysis
b.citric acid cycle
c.oxidative phosphorylation
-low yield of ATP

Accepted Answer

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

Question 14

Because of the presence of tight junctions, passage of materials across an epithelial barrier must take place between the cells, not through them.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following refers to the form of endocytosis in which whole cells such as bacteria are brought in?

Accepted Answer

A) exocytosis 
B) pinocytosis 
C)  receptor-mediated endocytosis 
D)  phagocytosis 
A) exocytosis 
B) pinocytosis 
C)  receptor-mediated endocytosis 
D)  phagocytosis

Question 16

What is the purpose of glycolysis?

Accepted Answer

A) to produce citric acid 
B) to liberate energy from glucose 
C)  to produce large numbers of ATP 
D)  to trap energy in FADH2 
A) to produce citric acid 
B) to liberate energy from glucose 
C)  to produce large numbers of ATP 
D)  to trap energy in FADH2

Question 17

What does the SNARE complex provide?

Accepted Answer

A) recognition of foreign proteins in the cell 
B) binding of correct enzyme with correct substrate 
C)  means to deliver vesicles to an appropriate site 
D)  receptor-mediated endocytosis 
A) recognition of foreign proteins in the cell 
B) binding of correct enzyme with correct substrate 
C)  means to deliver vesicles to an appropriate site 
D)  receptor-mediated endocytosis

Question 18

Sodium and potassium ions are highly soluble in lipids.

Accepted Answer

A) True 
 B)False

Question 19

Glycolysis generates ATP from glucose with high efficiency.

Accepted Answer

A) True 
 B)False

Question 20

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.)
a.endoplasmic reticulum (ER)
b.Golgi complex
c.lysosome
d.peroxisome
e.mitochondrion
f.vault
g.free ribosome
h.microtubule
i.microfilament
-acts as a mechanical stiffener

Accepted Answer

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

If presynaptic neurons X and Z are stimulated simultaneously, what change would you expect to occur in the postsynaptic neuron?

A given synapse is always excitatory or ____________________.

Which of the following statements does NOT correctly describe cells?

Cations are attracted to a more positively charged area along an electrical gradient.

Large, myelinated fibres can conduct impulses near the rate of ____________________ metres per second.

Which of these statements regarding neuronal integration is NOT correct?

Which of the following is NOT a correct association?

____________________ is the hindrance to electrical charge movement.

Osmosis is which of these types of processes?

Match the terms, labelled a. through f., to their correct descriptions. (Options may be used more than once or not at all.) a.plasma membrane b.nucleus c.cytoplasm d.cytosol e.organelles f.cytoskeleton -separates contents of the cell from its surroundings

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 in greatest concentration in the ECF

The two major parts of the cell's interior are the and the .

Match the terms, labelled a. through c., with their characteristics, labelled 1. (Options may be used more than once or not at all.) a.glycolysis b.citric acid cycle c.oxidative phosphorylation -low yield of ATP

Because of the presence of tight junctions, passage of materials across an epithelial barrier must take place between the cells, not through them.

Which of the following refers to the form of endocytosis in which whole cells such as bacteria are brought in?

What is the purpose of glycolysis?

What does the SNARE complex provide?

Sodium and potassium ions are highly soluble in lipids.

Glycolysis generates ATP from glucose with high efficiency.

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) a.endoplasmic reticulum (ER) b.Golgi complex c.lysosome d.peroxisome e.mitochondrion f.vault g.free ribosome h.microtubule i.microfilament -acts as a mechanical stiffener

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

If presynaptic neurons X and Z are stimulated simultaneously, what change would you expect to occur in the postsynaptic neuron?

A given synapse is always excitatory or ____________________.

Which of the following statements does NOT correctly describe cells?

Cations are attracted to a more positively charged area along an electrical gradient.

Large, myelinated fibres can conduct impulses near the rate of ____________________ metres per second.

Which of these statements regarding neuronal integration is NOT correct?

Which of the following is NOT a correct association?

____________________ is the hindrance to electrical charge movement.

Osmosis is which of these types of processes?

Match the terms, labelled a. through f., to their correct descriptions. (Options may be used more than once or not at all.) a.plasma membrane b.nucleus c.cytoplasm d.cytosol e.organelles f.cytoskeleton -separates contents of the cell from its surroundings

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 in greatest concentration in the ECF

The two major parts of the cell's interior are the ____________________ and the ____________________.

Match the terms, labelled a. through c., with their characteristics, labelled 1. (Options may be used more than once or not at all.) a.glycolysis b.citric acid cycle c.oxidative phosphorylation -low yield of ATP

Because of the presence of tight junctions, passage of materials across an epithelial barrier must take place between the cells, not through them.

Which of the following refers to the form of endocytosis in which whole cells such as bacteria are brought in?

What is the purpose of glycolysis?

What does the SNARE complex provide?

Sodium and potassium ions are highly soluble in lipids.

Glycolysis generates ATP from glucose with high efficiency.

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) a.endoplasmic reticulum (ER) b.Golgi complex c.lysosome d.peroxisome e.mitochondrion f.vault g.free ribosome h.microtubule i.microfilament -acts as a mechanical stiffener

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

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 in greatest concentration in the ECF

The two major parts of the cell's interior are the and the .