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.
Answer:
It results in variations in populations for the survival of species. If the variation are more drastic, then the DNA will not be able to function properly leading to the death of the cell.
hope this helps :)
Answer:
Species a would be deeper that species b
Explanation:
A has been there longer, and all those years the species would be underground because of erosion and all those things from 4th grade
Answer: glycolysis in the cytoplasm
step-by-step-explanation: Pyruvate is produced by glycolysis in the cytoplasm, but pyruvate oxidation takes place in the mitochondrial matrix (in eukaryotes). So, before the chemical reactions can begin, pyruvate must enter the mitochondrion, crossing its inner membrane and arriving at the matrix
A. Released from the body through menstruation
