Exam 2: Cell Physiology

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -the powerhouse of the cell

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.) -contain newly synthesized molecules

The neuronal relationship in which many presynaptic cells terminate on a single postsynaptic cell is called ____________________.

What are the three important functions of the lipid bilayer of the plasma membrane

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.) -form the mitotic spindle

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

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

The sodium-potassium pump indirectly offers the energy source for glucose transport across intestinal cells.

Lack of aerobic exercise can have negative health implications, such as heart disease and high blood pressure.

The period of time following an action potential during which a membrane cannot be restimulated, no matter how strong the stimulus, is known as the subminimal response period.

When a neuron starts to depolarize, ____________________ ions move into the cell.

Describe neuronal integration.

A postsynaptic neuron can either excite or inhibit a presynaptic neuron.

A stronger stimulus above threshold produces a greater action potential in a neuron.

XYZ 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. -Refer to the text.If presynaptic neurons Y and Z are stimulated simultaneously, what change would be expected to occur in the postsynaptic neuron

Match the terms, labelled a. through f., to their correct descriptions. (Options may be used more than once or not at all.) -highly organized membrane-bound intracellular structures

Which of the following is the last step for synaptic signalling when the action potential arrives at the axon terminal of a presynaptic neuron

XYZ 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. -Refer to the text.If presynaptic neuron Y is stimulated, the postsynaptic cell membrane becomes slightly depolarized.What kind of synapse is involved between presynaptic neuron Y and the postsynaptic neuron

A change in a membrane potential from -70 mV to -60 mV is an example of which of the following

Which of the following occurs when an excitatory neurotransmitter binds to a nicotinic receptor