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OleMash [197]
3 years ago
8

When water freezes, it (expads ,contracts)?

Biology
1 answer:
stiv31 [10]3 years ago
8 0
It contracts hope that helps
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Modern whales evolved from mammals that lived on land. Fossil evidence reveals that one characteristic that has changed over tim
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Cells can make proteins that need to be transported out of the cell and moved to another part of the body. Cells also make carbo
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Answer:

The proteins will be transported through exocytosis; the carbon dioxide will diffuse through the membrane.

Explanation:

Diffusion is the passive transport of substances down their concentration gradient. The process moves the substances from the region of higher concentration to that of lower concentration. CO2 is a small molecule and does not have any charge. Small, uncharged molecules can diffuse through the lipid bilayer of the cell membrane. Therefore, CO2 can exit a cell by simple diffusion.

On the other hand, proteins are too large to be transported by diffusion across the cell membrane. The proteins are transported by exocytosis. During exocytosis of proteins, membrane-bound vesicles are formed inside the cell. These vesicles carry proteins in them and are called secretory vesicles. The membrane of the vesicles fuse with the cell membrane of cells and transport the proteins outside the cell.  

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The lower the fat percentage the higher the muscle percentage.



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