Answer:
2
Explanation:
puma is consider the Genus animal's
Congressman,
I am writing to tell you that energy comes in many forms, and we should start investing in and finding new sources of energy. Resources such as coal are depleting as demand and population rise. Therefore, we should move to renewable sources of energy, such as solar, wind and water power.
Regards,
Student
The most important factor that limits the size of a cell is the ability of the cell to transport materials efficiently into and out of the cell. In this case the size of a cell should have a particular form in order to export and import material.
Answer: It can affect A LOT
Explanation: if something were to suddenly vanish, all the creatures above it, and below it will be in big danger.
When something needs to be transported against its concentration gradient, or a molecule is too big to simply diffuse through a membrane, active transport has to be used. So active transport requires energy (ATP).
Examples:
1. Antiport pumps: transport one substance in one direction while transporting another substance the other way. An example of this is the sodium-potassium pump.
2. Symport pumps - uses a substance that wants to move from an area of high concentration to low concentration and carries another substance against its concentration gradient. An example of this is the sodium-glucose transport protein
3. Endocytosis - large amounts of extra cellular fluid can be taken into a cell - needs ATP to bind proteins in the cell membrane and causes them to change their shape...which eventually causes the surrounding of the fluid to be brought in (a vesicle).
4.exocytosis - opposite of above
