Explain how the sense of smell works on a molecular level. Be sure to describe what is happening in the brain as well?

Biology

1 answer:

dem82 [27]2 years ago

7 0

Answer:

The smell is one of the senses that is created by the small molecules that are released by the food, aromatic substance, or any substance into the air. When we inhale during the breathing process these small molecules enter our nose and trap in tiny hair of the nose.

These molecules dissolves in mucus present in the nose to reach the specialized receptor cells known as olfactory receptor neurons. These neurons detect the smells and send the information directly to the brain to the olfactory bulbs that work to detect the smell.

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Describe two ways in which communication in the endocrine system and in the nervous system are different and one way in which th

Mkey [24]

The two ways the endocrine system and the nervous system are different in communication, is that the nervous system responds rapidly to short-term changes in the body by sending electrical impulses. And with the endocrine system, it takes longer, so it's a long-term effect until it notices any changes and when it does, it sends chemical messengers known as hormones into the body.

Now, how they are similar, is because both the nervous and endocrine systems work together to maintain homeostasis.

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3 years ago

B cells interacting with helper t cells are stimulated to differentiate when _____.

madam [21]

There are choices for this question namely:

<span>A) B cells produce IgE antibodies
B) B cells release cytokines
C) cytotoxic T cells present the class II MHC molecule-antigen complex on their surface
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The correct answer is "helper T cells release cytokines". Cytokines are released by helper T cells when B cells attach to them via receptors. These T cells "help" these B cells to differentiate by secreting certain cytokines. When B cells differentiate, they are converted to plasma cells and able to secrete antibodies to the antigen presented to the T cells. </span>

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3 years ago

what would happen to an enzyme if the temperature and pH changed significantly beyond the enzyme`s optimum level?

allochka39001 [22]

<span>If the PH and temperature changed significantly beyond the enzyme optimum level it will become denatured and then the enzyme would not work.
The Enzyme is a biological catalyst which speeds up a reaction. The Enzyme has molecules which act upon as substrates and then it converts those substrates into different molecules which are called products.
The study of the enzyme is known as enzymology, and they are well known to catalyze more than 5,000 biochemical reaction types.</span>

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2 years ago

The ________ is an enzyme involved in the breakdown of serotonin, norepinephrine, and dopamine, and its suppression results in i

kenny6666 [7]

Answer:

monoamine oxidase inhibitor

Explanation:

MAO is an intramitochondrial enzyme that is responsible for the breakdown of intracellular dopamine,norepinephrine and dopamine.MOA INHIBITORS is responsible for inhibiting monoamine oxidase as a result there is an increase concentration of monoamines at the synapse.

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Ket [755]

Answer:

Yes, the moon is accelerating.

Explanation:

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3 years ago