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miskamm [114]
3 years ago
13

Why is salt not allowed to pass through the cell membrane?

Biology
1 answer:
xxTIMURxx [149]3 years ago
7 0
Salt molecules are much smaller than starch molecules and can pass through more easily. ... Thus, they are quite large molecules in contrast to the relatively small salt molecules. The smaller salt molecules pass through the membrane easily, but the larger starch molecules cannot pass through the membrane.
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A large protein needs to enter a cell to help preform a function explain what process the cell must use to allow the protein to
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The protein is too large to simply diffuse across the phospholipid bilayer of the cell, so it uses phagocytosis to diffuse across, where it is contained in a vesicle and pinched into the cell? Credits to yahoo answer. Hope I could help sweets.

Cell membranes acts as a barrier for the large,charged and polar molecules due to their hydrophobic nature.

These molecules are transported with the help of membrane proteins such as carrier proteins across the plasma membrane by a process known as facilitated diffusion. These membrane proteins diffuse larger molecules across the cell membrane that cannot be transported by simple diffusion.

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What provides clues about the ocean and climate including the type of marine life presented?
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The best answer would have to be
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The pH is a measure of the concentration of the hydrogen ion (H+) in water. Highly acidic water has a very high H+ concentration
LUCKY_DIMON [66]

The hydrogen ion concentration of the following pH samples is as follows:

  • 7 (a neutral solution) = 0.845
  • 5.6 (unpolluted rainwater) = 0.748
  • 3.7 (first acid rain sample in North America) = 0.568

<h3>How to calculate hydrogen ion concentration (H+)?</h3>

The pH is a measure of the concentration of the hydrogen ion (H+) in water. This means that a relationship exists between H+ and pH of a solution.

The mathematical relationship between pH and H+ concentration ([H+]) is as follows:

pH = –log [H+]

This means that the hydrogen ion concentration (H+) of the following pH values can be calculated thus:

  • log 7 (a neutral solution) = 0.845
  • log 5.6 (unpolluted rainwater) = 0.748
  • log 3.7 (first acid rain sample in North America) = 0.568

Learn more about pH at: brainly.com/question/15289741

#SPJ1

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2 years ago
What is the role of cellular respiration in a plant?
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Answer:

es producir un suministro llamado ATP

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