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Does up-regulation involve the loss of receptors and prevents the target cells from overreacting to persistently high hormone levels?
Wiki User
∙ 11y ago
I think is down-regulation because a decrease in receptors will occur so less hormone can bind the cell.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoFalse- Down-regulation involves the loss of receptors and prevents the target cells from overreacting to persistently high hormone levels.
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What is the effect of curare on eliciting an action potential?
it is an alpha-toxin that binds to acetylcholine binding sites on the postsynaptic cell membrane, which prevents the acetylcholine from acting. Curare blocks synaptic transmission by preventing neural impulses to flow from neuron to neuron. It does allow the action potential to travel in the axon, it just doesn't pass it on to the dendrite.
Succinylcholine acts as a depolarizing agent that prevents repolarization of the nerve. Name a site within the neuromuscular junction that might be affected to prevent the muscle contraction?
It can act presynaptically on Nicotinic 2 receptors which increases the release of AcH potentiating the block at the motor end plate.
The vitamin that prevents beriberi is?
The nutrient that prevents beriberi
What structure prevents the valves from turning inside out?
Tendons are the structures that prevents valves from turning inside-out.
What structure prevents from escaping a plants leaves?
The cuticle prevents water from escaping a plant's leaves.
Sometimes prolonged excessive exposure to high hormone concentrations causes a phenomenon known as?
prolonged exposure to high hormone concentrations desensitizes the target cells, so that they respond less vigorously to hormonal stimulation. This "down-regulation" involves loss of receptors and prevents the target cells from overreacting
Why does curare create an action potential?
Curare does NOT create an action potential. It binds to nicotinic acetylcholine receptors (which are primarily excitatory), and prevents the formation of an action potential.
What is the effect of curare on eliciting an action potential?
it is an alpha-toxin that binds to acetylcholine binding sites on the postsynaptic cell membrane, which prevents the acetylcholine from acting. Curare blocks synaptic transmission by preventing neural impulses to flow from neuron to neuron. It does allow the action potential to travel in the axon, it just doesn't pass it on to the dendrite.
What is in the human integumentary system?
Skin, hair, gland, and nails. Provides protection, prevents water loss, synthesizes vitamin D, site receptors, and helps regulate body temperature through sweat evaporation.
Is faslodex a nonsteroidal aromatase inhibitor?
No it is a receptor agonist it binds to breast cancer cell receptors and therefore prevents further cell division and thus tumour growth. It works in a similar but not identical way to tamoxifen.
How does ranitidine work?
Ranitidine (Zantac) is an H2 blocker. Histamine is released by nerves to the stomach and bind to H2 receptors to signal the stomach to make acid. Ranitidine blocks this interactions and so decreases acid production. The drugs called "antihistamines" block the H1 histamine receptors so that histamine (the same chemical) released by immune cells can't interact with other immune cells to cause allergies.
What does your skin do what does your skin do?
1st) provide your body with first line of defence against infection by being a protective barrier and secreting oil or sebum 2nd) holds the most important sensory receptors in your body, touch receptors, to determined heart, pain, relief and pressure 3rd) covered delicate organs and prevents them from being damage 4th) has hair follicles and sweat glands to help cooling and heating of the body when need
Is it correct that synaptic clefts prevents an impulse from being transmitted directly from one neuron to another?
Yes, that is correct. The synaptic cleft is a small gap between neurons, and it prevents direct transmission of impulses. When an impulse reaches the end of a neuron, it triggers the release of chemical messengers called neurotransmitters into the synaptic cleft. These neurotransmitters then bind to receptors on the adjacent neuron, allowing the impulse to be transmitted indirectly.
Is ranitidine an antacid?
Ranitidine is an anti acid, used for people with gastroparesis or stomach ulcer, also used for acid reflux patience. If by antacid you mean the tablets people chew to neutralize too much stomach acid, like Tums or Rolaids, it is not that kind of antacid. Instead of neutralizing the acid that's already there, it prevents your stomach from making so much acid. Here is a description of how it works, from a medical website: Ranitidine acts in the stomach to decrease the production of stomach acid. It works by blocking histamine H2 receptors that are found on the cells in the stomach lining. A natural body chemical called histamine normally binds to these receptors, causing the cells to produce stomach acid. By blocking the H2 receptors, ranitidine prevents histamine from binding to them. This stops the cells from producing stomach acid.
Succinylcholine acts as a depolarizing agent that prevents repolarization of the nerve. Name a site within the neuromuscular junction that might be affected to prevent the muscle contraction?
It can act presynaptically on Nicotinic 2 receptors which increases the release of AcH potentiating the block at the motor end plate.
What are the functions of Plasma Membrane?
erves as a gateway between the fluid inside and outside the cell. Keeps the cell whole and intact. It also prevents larger molecules or particles from entering it. Receptors (bind molecules and trigger responses within the cell) Enzymes (catalyze certain reactions)
Can you take gabapentin and Adderall together?
Yes sir it goes well together cause it makes the peak of the adderall better cause it makes pills stay in your system longer and it prevents sezures perfect
