14. a prokaryotic cell is being looked at under the microscope and a scientist is watching molecules such as sodium enter and exit the cell
what part of the prokaryotic cell is being looked at under the microscope?
o a. cell wall
b. plasma membrane
c. dna
d. cytoplastic membrane

ANSWER:

The part which is looked under the microscope is the plasma membrane.

EXPLANATION:

The plasma membrane is known as the cell membrane and protects the inter-cellular components from the external environment. The plasma membrane controls and regulates the material which enter and exit a cell.

The plasma membrane comprises of proteins, carbohydrates, and lipids and 'surrounds the cytoplasm of the cell'. The plasma membrane function is to maintain cell potential and helps the 'cytoskeleton' to provide a shape to the cell.  

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.