In the complete absence of light, a rod will become strongly depolarized and increase its release of neurotransmitters become strongly hyperpolarized and decrease its release of neurotransmitters become strongly hyperpolarized and increase its release of neurotransmitters become strongly depolarized and decrease its release of neurotransmitters None of these

The nuclear-chain fibers of spindles are innervated by :-a- Aα and Aδ nerve fibersb- Aδ and C nerve fibersc- Ia and II nerve fibersd- only type II nerve fibers

A pin can be pressed against the skin lightly and elicit no response from the pain receptor how ever, if this pain is jabbed into the finger, the pain receptor may be stimulated and the finger would quickly be withdrawn through a reflex arc. use what you know about threeshold potential and the all-or-none principle to explain different levels of sensation (light touch or pain)

What do gustatory epithelial cells have in common? they sense tastants using activation of ion channels they sense tastants using activation of G-protein coupled receptors a change in pH activates the cells they release neurotransmitters in response to depolarization

Which of the following are mechanisms of gustation transduction? Select one or more: a. Hydrogen atoms activate proton channels b. Sodium ions activate sodium channels and a graded potential is produced c. Entry of sodium and calcium causes the cell to depolarize and voltage-gated calcium channels to open d. Calcium ions activate calcium channels and a graded potential is produced

Help me

Regarding olfaction, put the steps below in order for transduction. Question options:   Odorant binds to olfactory receptor   Adenylate cyclase is activated   G-protein is activated inside receptor cell   ATP is converted into cyclic AMP   Cyclic AMP opens ion channels, causing depolarization

which of the following is NOT a step in rod phototransduction by rhodopsin? activation of rhodopsin by photons conversion of cGMP to GMP by phosphodiesterase opening of cGMP-dependent ion channels and hyperpolarization of the membrane activation of phosphodiesterase by light-activated rhodopsin through Galphat, (couldn't add the alpha into that part    i didn't select an answer resulting in getting it wrong and wish to know what the correct answer is and how it is the correct answer

An on center bipolar cell ________  when light is on the center of its receptive feild, because it is _______ glutamate Select one: a. depolarizes; inhibited by b. hyperpolarizes; activated by c. depolarizes; activated by d. hyperpolarizes; inhibited by e. maintains its resting membrane potential; excited by

The graphs represent a membrane potential recording from a hair cell (graph A) and a neuron it synapses with (graph B) in response to a small stimulus at the time indicated by an arrow. Explain how each graph would change in response to a stimulus of much greater intensity and why