Answer:
The correct answer will be option-B.
Explanation:
A neurotransmitter is a chemical messenger used by the nerve cells to transmit the signals from one neuron to another neuron and muscle cell at the synaptic cleft. The common neurotransmitter is acetylcholine, dopamine, serotonin and others.
The neurotransmitter can be excitatory that is causing the generation of the action potential in the neurons or inhibitory that is prevent the generation of neuron in neuron cell. This depends on the receptors to it binds.
The neurotransmitters can be degraded or can be taken back after the work is completed. thus, Option-B is the correct answer.
Answer:
the three domains are Eukarya Archae and Eubacteria
Explanation:
an example of Eukarya is plants and animals
an example of Archae is methanogens
an example of bacteria is bacteria such as e.coli
Answer:
By increasing blood glucose, fatty acid, and amino acid levels
Explanation:
Cortisol, corticosterone, and cortisone are the glucocorticoids released by the adrenal cortex and serve to impart resistance to stress. These hormones stimulate protein breakdown (mainly in muscle cells), gluconeogenesis and lipolysis and thereby increase the concentration of amino acids, glucose and fatty acids in blood.
The amino acids are used by cells for synthesis of new proteins or for synthesis of ATP. Glucose is also used by cells to produce ATPs.
Glucocorticorticoids increase the sensitivity of blood vessels for hormones which in turn stimulate their constriction. The vasoconstriction raises blood pressure. The process of vasoconstriction resumes the normal range of blood pressure which is otherwise dropped by some emergency conditions such as injury and severe loss of blood.
Answer:
The correct answer is- olfactory nerve(1)
Explanation:
Olfactory nerve is the first nerve out of the 12 cranial nerve that is located in the head and is also the shortest of all the cranial nerve. The receptors of the olfactory nerve are present in the nasal mucosa that passes to the forebrain.
It pass sensory information of smell to the brain so it plays the sensory function in smell perception. The damage to olfactory nerves can lead to:
Anosmia: In anosmia, people lose their ability to smell.
Hyposmia: In this condition, the ability to smell gets reduced.
Dysosmia: In this situation, people lost their ability to distinguish between various types of smell.
So the right answer is olfactory nerve(1).
The correct answer is:
Gravitational pull is greater on earth . As weight = mass × g so we have more weights on earth than on moon.
Explanation:
This is because gravitational force is immediately proportional to the mass of an object. Greater the mass, greater will be the gravitational force exerted by it and thus, more will be our weight. As the moon has secondary mass than the earth, it has a lighter gravitational influence and hence, we weigh less on the moon.
