Answer
Complex barrier to the flow of substances out of the cells,and restrictions to inflow of unwanted substances into the cells. The hydrophobic and hydrophilic nature of the cell membrane controls the entry of substances from the extracellular medium into the intracellualr. In addition the polarity restricts certain substance movement across the walls.
Serve as the selective channels for the influx of certain substances into the cells, and the out flux of wastes.This is through ion channels for the movements of ions across.
Provide insulation to the cells,to maintain the constant internal temperature,this is through the presence of lipids as( Phospholipids and cholesterol).The latter prevent the clogging of the lipids in the cell membrane therefore preventing frozen up of the cell membrane,providing insulation.
Separation of metabolic process in the cell.
Explanation:
Cell membrane-This is present in all cells.But the variation of its constituents makes it unique to each cell. Although it performs the same role, the location and role the cells it bounded, reflects its constituents, it is made up of lipids, carbohydrate, protein and cholesterol
Answer:
The correct answer is carbon.
Explanation:
Carbon is the major constituent of almost all organic compound.Carbon in form of carbon dioxide is used during photosynthesis in which the CO2 act as reactant that interact with water to generate glucose and oxygen.
On the other hand carbon is found in carbohydrates such as glucose contain 6 carbon atoms,found in protein which contain a carboxy terminal end and an amino terminal end,found in the fatty acid monomers of lipid molecules.
Answer:
Does the organism have legs?
Does the organism reproduce asexually?
Can the organism ferment?
Is the organism infectious?
Explanation:
The questions HAVE to be yes or no, in order for it to effectively determine which species is which.
Four daughter cells that are haploid
1 2
4 not sure
yes no
yes yes
Answer:
<em>change</em><em> </em><em>in</em><em> </em><em>genetic</em><em> </em><em>structure</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>popu</em><em>lation</em><em> </em><em>over</em><em> </em><em>time</em>
