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Andrei [34K]
3 years ago
14

Which of the following is part of the central nervous system?

Biology
2 answers:
romanna [79]3 years ago
7 0

The correct anser is A. brain

I took the test too, hope this helps ^w^

il63 [147K]3 years ago
6 0
The brain is part of the central nervous system
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koban [17]

Answer:

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Which of the following is an example of<br> competition between species?
vekshin1
Where are the answer options and a picture of the problem?
5 0
3 years ago
This piece of magnifying equipment is capable of producing high resolution images of a sample surface is called what?
Natalija [7]

Answer:

Microscope i believe.. let me know if its correct :)

Explanation:

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Bioflix activity: membrane transport -- vocabulary review can you match the processes involved in membrane transport to their de
Natalka [10]

Explanation:

<u></u>

<u>From the diagram with corresponding labels:</u>

  1. Exocytosis
  2. Facilitated diffusion
  3. Endocytosis
  4. Diffusion
  5. Active transport

<u>Further explanation:</u>

Via diffusion, small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds.

Via osmosis, the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid by layer this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

Active transport is a mediated process that requires the use of specialized membrane proteins these proteins require energy in the form of avenues and triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules.

Carrier proteins and channel proteins are the two major classes of membrane transport proteins; these allow large molecules called solutes (including essential biomolecules) to cross the membrane. Channel proteins which are pores filled with water versus enabling charged molecules to diffuse across the membrane,  from regions of high concentration to regions of lower concentration. This is a passive part of facilitated diffusion

<em>...some very large molecules require specialized type of active transport in order to move across the membrane this includes endocytosis and exocytosis</em>

<em> </em>

During endocytosis large molecules cells and cell fragments moved across the plasma membrane through a process of invagination; piece of the external cell membrane falls into itself and forms a small pocket that surrounds the target molecule this breaks off from the membrane to form an intracellular vesicle; different methods of endocytosis such as Phagocytosis, Pinocytosis and receptor-mediated endocytosis, take in cells,  water and targeted substances respectively.

Similarly, in exocytosis, the particles (Protein, Waste material etc.) surrounded by a phospholipid membrane. However, this membrane is formed in the cytoplasm, and attaches to the plasma membrane’s interior in a process opposite to endocytosis;  material is removed from the cell and exported into the cell’s exterior called the extracellular space.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

3 0
3 years ago
2. What does polar mean?
irina1246 [14]

Hello!

<h3>⭐What does polar mean? </h3>

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  • D. An unequal sharing of electrons

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<em><u>Chemical polarity or only polar is a property of molecules that represents the separation of electric charges in the same molecule (see also electric dipole). ...</u></em>

I hope I have helped you :D

greetings

atte:

<u>Angela</u>

❤️

3 0
2 years ago
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