Question

Which statement about a metabotropic neurotransmitter receptor is true? It is a ligand-gated ion channel. It...

Which statement about a metabotropic neurotransmitter receptor is true?

It is a ligand-gated ion channel.
It is a voltage-gated ion channel.
It has a single, very specific effect on a cell.
It often controls production of second messengers.

Homework Answers

Answer #1

Answer:

Which statement about a metabotropic neurotransmitter receptor is true?

  • It is a ligand-gated ion channel.
  • It is a voltage-gated ion channel.
  • It has a single, very specific effect on a cell.
  • It often controls production of second messengers - Correct Option

Explanation: Metabotropic receptors are normally G protein-linked or coupled receptors and control production of second messengers. Their binding sites are not associated with any ion channels and these receptors are involved in the modulation of synaptic transmission.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A ___ receptor, is a cholinergic receptor which when bound by neurotransmitter is an ion channel...
A ___ receptor, is a cholinergic receptor which when bound by neurotransmitter is an ion channel that allows, sodium ion and potassium ion to pass through but allows more sodium ion influx thus causing the cell to ____ 1) Adrenergic; hyperpolarize 2) Nicotinic; hyperpolarize 3) Nicotinic; depolarize 4) Adrenergic; depolarize
Which of the following is true regarding the actions of partial agonist at a ligand-gated ion...
Which of the following is true regarding the actions of partial agonist at a ligand-gated ion channel Maintains the ion channel in its resting state Opens the ion channel maximally in the presence of a full agonist Opens the ion channel more frequently than resting when a full agonist is absent Prevents the opening of the channel in the presence of an antagonist
An inhibitory neurotransmitter may cause the movement of which ion across the membrane? a) Na+ b)...
An inhibitory neurotransmitter may cause the movement of which ion across the membrane? a) Na+ b) Mg2+ c) K+ d) Ca2+ Excitatory neurotransmitters produce which types of electrical responses in the postsynaptic neuron? a)Hyperpolarizations b)EPSPs c)IPSPs d)Threshold level inhibitions Neurotransmitters induce membrane potential changes: a) by opening voltage-gated Na+ channels on the postsynaptic axon hillock. b) on the presynaptic cell body. c) by opening mechanically-gated Mg2+ channels on the postsynaptic axon. d) on the postsynaptic dendrites and cell body
QUESTION 13 Which of the following are NOT included in the four primary drug-receptor families? Transcription...
QUESTION 13 Which of the following are NOT included in the four primary drug-receptor families? Transcription factors Antagonists Ligand-gated ion channels G protein-coupled receptor systems 1 points    QUESTION 14 The amount of drug required to cause an effect is referred to as: relative potency adverse effect maximal efficacy dose-effect relationship 1 points    QUESTION 15 The amount of medication needed to produce a specific response in 50% of patients is called the: dose-effect relationship frequency distribution curve median effective...
1. A typical ion channel radius is about 1 nm (nanometer), and the thickness of the...
1. A typical ion channel radius is about 1 nm (nanometer), and the thickness of the cell membrane is about 7 nm. The concentration of Na+ ions inside a mammalian heart cell is about 0.6 ions/nm3, and in the fluid surrounding the cell is about 6.0 ions/nm3. The diffusion constant for ions is about 109 nm2/s (nanometers2/second). If the channel were just an open cylinder, how many ions per second would flow through the channel and in which direction? Is...
The effect of a neurotransmitter on a postsynaptic neuron are typically very brief because the concentration...
The effect of a neurotransmitter on a postsynaptic neuron are typically very brief because the concentration of the neurotransmitter in the synaptic cleft decreases rapidly soon after transmitter is secreted by the presynaptic neuron. Describe 3 mechanisms by which the transmitter is removed. Which of the following characteristics does NOT apply to both chemical and electrical synapses? Communication between interacting cells involves changes ion concentrations in the cytosol Only one-way communication between nerve cells is permitted. Action potentials are involved...
Most enzyme-linked receptors affect the function of the target cell by A- generating an action potential....
Most enzyme-linked receptors affect the function of the target cell by A- generating an action potential. B- phosphorylating intracellular target proteins. C- catalyzing synthesis of hormones in the cytoplasm. D- facilitating the assembly of the cytoskeleton. Which statement describes a possible outcome for a neurotransmitter after release into the synaptic cleft? A- Reuptake into postsynaptic terminal via transporter proteins B- Activation of G-protein-coupled receptor on postsynaptic cell C- Modulation by an enzyme, increasing its efficiency D- Activation of voltage-gated ion...
7. Which of the following statements about second messengers is false? (a) Ca2+ ions and cAMP...
7. Which of the following statements about second messengers is false? (a) Ca2+ ions and cAMP are examples of second messengers (b) They are used as intracellular signals in signal transduction pathways, following activation of a receptor. (c) They are produced in very small amounts following cell activation, and are difficult to detect experimentally. (d) They activate other molecules, such as kinases (e) There are mechanisms that enable the messages to be “turned off” after they are generated
Imagine if you could tinker with any component of the signal transduction pathway involved in vision...
Imagine if you could tinker with any component of the signal transduction pathway involved in vision in vertebrates. In this problem, you will predict the effect of a change in the activity of a single component of the signal transduction pathway in vision. The rod cell secretes the neurotransmitter glutamate onto the bipolar cell as a function of its membrane potential – the more depolarized, the more it secretes; the more hyperpolarized, the less it secretes. The bipolar cell in...
6. Ion channel gates close the pores of some ion channels in response to Select one:...
6. Ion channel gates close the pores of some ion channels in response to Select one: a. stretching of the cell membrane b. a change in electrical charge c. the binding of specific molecules to the channel d. All of the above 7. An atom that has gained or lost electrons is called a(n) Select one: a. molecule b. nucleon c. ion d. element Which of the following does not require energy? Select one: a. diffusion b. endocytosis c. active...