Large molecules often cross the plasma membrane while inside vesicles.
Explanation:
The plasma membrane is a fluid membrane mad of phospholipids bilayer. The fatty acid chains are sandwiched in between the phosphate ends of the lipid layers. The fluidity of the membrane is due to the fact that these molecules, including the integral proteins that span the membrane are NOT covalently bound to each other hence can freely move within the membrane. Cholesterol molecules are intercalated in between the fatty acid chains and prevent these carbon chains from binding to each other tightly through hydrogen bonding hence adding to the fluidity of the membrane. The cell membrane has natural pores within it that allow small molecules such as water to pass through, passively, in and out of the cell. Larger molecules have to pass through channels created by the integral proteins while the largest molecules are taken in by endocytosis and taken out by exocytosis, which translates to vesicle transport in cell.
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Heat from the earths core causes movement in the mantle, which results in movement on the crust.
Hi,
I think the answer you are looking for is “acid compound”.
I hope this helps. If you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.
Answer:
Eating each other
Explanation:
When one organism(Billy) eats another organism(Bobby), the energy is transferred into that organism.
E.
Bobby dies
Billy eats Bobby
Bobby's energy goes to Billy
Billy now has more energy
Hope this helps!
They are also called "Land Plants" that are non-vascular!
Hope this helps!
