A cell from a animal dosnt have a cell wall or chloroplasts but its dose also have a mitochondria and cell membrain and a nucleus
<span>Specialized Cells Within the Phloem. The phloem is responsible for transporting sugars throughout the plant. There are four basic cell types in the phloem: the parenchyma, sclerenchyma, sieve elements and companion cells. The sieve elements are the conducting part of the phloem, which sugars are transported through.</span>
Answer:
By increasing the enzyme concentration, the maximum reaction rate greatly increases. Conclusions: The rate of a chemical reaction increases as the substrate concentration increases. Enzymes can greatly speed up the rate of a reaction.
Answer:
by explaining that one nonprofit has been helping veterans for over a decade and emphasizing that the government should be doing more
Explanation:
I just took the test and this was the correct answer hope i couldve helped anyone!
Answer:
Small, nonpolar molecules (ex: oxygen and carbon dioxide) can pass through the lipid bilayer and do so by squeezing through the phospholipid bilayers. They don't need proteins for transport and can diffuse across quickly.
Explanation:
The channel proteins act like doors through the cell membrane.
They allow large polar molecules to move in and out of the cell.
The process is called passive diffusion or passive transport, because it does not need energy.
Sometimes the protein changes shape to help the polar molecules move through the channel.
It often uses a gated pore mechanism, in which the channel is never completely open.