"If blood temperature rises too high<span>, this is sensed by specialized neurons in the hypothalamus of the brain. ... As these blood vessels dilate, more blood flows close to the </span>body<span> surface and excess heat radiates from the </span>body<span>."</span>
Answer:
The correct order of events is:
C) Nicotine binds to the transmembrane protein that normally binds the neurotransmitter acetylcholine.
A) The acetylcholine receptor is an ion channel, and when a ligand binds, the ion channel opens.
B) An influx of ions carries the signal to the reward areas of the brain.
D) The signal causes release of dopamine in the brain, which causes good feelings.
E) Nicotine is quickly eliminated from the body (causing cravings for more cigarettes to produce good feelings).
Explanation:
Nicotine acts on acetyl cholinergic receptors that are located in membranes of the midbrain neurons. Nicotine can activate those receptors or block them more efficiently than acetylcholine. Stimulation of nicotinic receptors leads to an increase in ions flow that reaches the brain and causes dopamine release in the nucleus accumbens through axonal prolongations of the dopaminergic pathway. This response is responsible for the smoker´s recompense sensation.
The dopaminergic pathway is the most important way in the process of nicotine dependence and addiction to the drug.
Below are the choices that can be found elsewhere:
a. ADP
<span>b. ATP </span>
<span>c. glucose </span>
<span>d. NADP+
</span>
The answer is d. NADP+
<span>The electrons combine with NADP+ molecules to form NADPH molecules. The NADPH molecules then travel to the stroma of the chloroplast to carry out the Calvin cycle. The Calvin cycle then produces glucose, which is the energy carrying molecule. The glucose molecule is used in cellular respiration to make ATP, so the cell can harness the energy from the glucose molecule.</span>
Its ‘Tethys’ not ‘Tetha’ .
Answer is — Whale valley
Also known as ‘WADI AL-HITAN’ in Arabic
And this question isn’t related to physics
