Western Michigan University Biology 1600 Exam 2 Study
Guide Questions With Complete Solutions
Action Potential Initiation Correct Answers Carry a signal
along an axon
Large Depolarization
All or none, constant strength
Action Potential Propagation Correct Answers Actively
propagated along axon
Amino Acids Correct Answers Glutamate, GABA, and Glycine
Axon Correct Answers Info is brought out of the cell
Catecholamines Correct Answers Dopamine and Epinephrine
Chemical Synapse Correct Answers Neurotransmitter released
from axon terminal
Opens (excitatory) or closes (inhibitory) ion channels of
postsynaptic neuron
Dendrites Correct Answers Info is brought into the cell
Dermal Tissues Correct Answers Form a covering
Epidermis (Tissues on the outer surface of leaves, stems, and
roots.)
Leaf epidermis has waxy cuticle, hairs trichomes
Root epidermis functions to absorb water and nutrients
No waxy cuticle
May have root hairs to increase surface area
, Electrical Synapse Correct Answers Directly passes electrical
current from presynaptic to postsynaptic neuron
Plasma membrane of adjacent cells connected by gap junctions
Uncommon
EPSPS Correct Answers Excitatory postsynaptic potential
(EPSPS) is a temporary polarization of postsynaptic membrane
potential caused by the flow of positively charged ions into the
postsynaptic cell.
Makes it easier for a neuron to fire an action potential.
Glia Correct Answers Cells surround neurons
Structural and metabolic support
Wrap around axon to form insulating myelin sheath
Sheath is interrupted by nodes of Ranvier
Ground Tissues Correct Answers Majority of plant's body
Site of photosynthesis
Storage of carbohydrates
Support and Structure
How do mechanoreceptors detect stretch and describe how their
structures relate to their functions of hearing. Correct Answers
Stretch:
Receptors detect expansions
Neuron endings commonly found in walls of organs that can be
distended
(stomach, urinary bladder, muscle, heart)
Hearing = audition
Guide Questions With Complete Solutions
Action Potential Initiation Correct Answers Carry a signal
along an axon
Large Depolarization
All or none, constant strength
Action Potential Propagation Correct Answers Actively
propagated along axon
Amino Acids Correct Answers Glutamate, GABA, and Glycine
Axon Correct Answers Info is brought out of the cell
Catecholamines Correct Answers Dopamine and Epinephrine
Chemical Synapse Correct Answers Neurotransmitter released
from axon terminal
Opens (excitatory) or closes (inhibitory) ion channels of
postsynaptic neuron
Dendrites Correct Answers Info is brought into the cell
Dermal Tissues Correct Answers Form a covering
Epidermis (Tissues on the outer surface of leaves, stems, and
roots.)
Leaf epidermis has waxy cuticle, hairs trichomes
Root epidermis functions to absorb water and nutrients
No waxy cuticle
May have root hairs to increase surface area
, Electrical Synapse Correct Answers Directly passes electrical
current from presynaptic to postsynaptic neuron
Plasma membrane of adjacent cells connected by gap junctions
Uncommon
EPSPS Correct Answers Excitatory postsynaptic potential
(EPSPS) is a temporary polarization of postsynaptic membrane
potential caused by the flow of positively charged ions into the
postsynaptic cell.
Makes it easier for a neuron to fire an action potential.
Glia Correct Answers Cells surround neurons
Structural and metabolic support
Wrap around axon to form insulating myelin sheath
Sheath is interrupted by nodes of Ranvier
Ground Tissues Correct Answers Majority of plant's body
Site of photosynthesis
Storage of carbohydrates
Support and Structure
How do mechanoreceptors detect stretch and describe how their
structures relate to their functions of hearing. Correct Answers
Stretch:
Receptors detect expansions
Neuron endings commonly found in walls of organs that can be
distended
(stomach, urinary bladder, muscle, heart)
Hearing = audition
