Explain the process of diffusion using a diagram

1 answer:

6 0

Process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.

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The hypothalamus regulates the ________.

Tresset [83]

Answer:

c. pituitary gland

Explanation:

The hypo(below) thalamus is an almond size structure located superiorly to the brainstem. it is located below the thalamus. Hence the name hypothalamus.

It is primary function is is to control the body homeostatic functions of sleeping and waking up, sex, thirst and hunger etc.

It performs these roles by serving as the primary link of the nervous system with the endocrine system. Pituitary gland is an example of endocrine gland that secrets many hormones. (they are called endocrine because the hormones are secreted directly into the blood streams.

Its activities are controlled by the nervous stimulation from hypothalamus. Therefore the instructions to secretes certain hormones to the post and anterior part of the pituitary gland depends on the hypothalamus.

Growth hormones, oestrogen, and thyroid are examples of hormones of the pituitary glands.

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3 years ago

Part a - identifying the processes of replication, gene expression, and recombination this activity requires that you correctly

Naddika [18.5K]

I found the exercise on the internet with the images and brief descriptions. Attached is an image of it.

To the DNA replication bin:
-Image of one cell dividing into two cells, and the mother cell has its DNA being unfolded and replicated.
-"DNA -> 2DNA (copying one DNA molecule to make two identical DNA molecules)"

To the gene expression bin:
-Image of only one cell with some arrows within it indicating the gene expression flow: DNA -> mRNA -> protein
-"DNA->mRNA->protein"
-"transcription"
-"translation"

To the recombination bin:
-Image with two cells being one the donor and the other one the recipient. The recipient has DNA with different colours pretending to represent that its DNA has different origins.
-"transformation"
-"conjugation"
-"transduction"

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The mutation of mitochondria

koban [17]

idkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidk

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3 years ago

How to minimize flood

Luda [366]

Answer:

some of the ways are...

Explanation:

establishing strong dam
avoiding construction around water resources
properly utilizing and storing rain water for future use
flood cannot be stopped totally as it is the effect of nature but its effects can be minimized by using our scientific knowledge and methods

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3 years ago

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8-4 Discounting the Transverse Carrier Model. At one time, membrane biologists thought that transport proteins might act by bind

Natasha_Volkova [10]

Answer:

The two main reasons are nonpolar core of the bilayer and the active transport.

Explanation:

The membrane is structured to have two outer layers that are polar and an inner layer that is nonpolar.

If a membrane protein is exposed to the solvent, it will also have a polar side. It would be very difficult for the polar face of the membrane to move through the nonpolar core of the bilayer. Therefore, this model is not feasible.

One major form of transport, active transport, moves solutes up the concentration gradient. The binding of a solute and then release on another side of the membrane would only work for facilitated diffusion because it would cause a net movement of solutes down the concentration gradient. It is unclear how energy could be expended to drive this process in the transverse carrier model. Therefore, the transverse carrier model does not explain active transport.

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3 years ago