Answer:
MHC Markers
Explanation:
The function of MHC molecules is to display peptide fragments derived from pathogens on the cell surface for recognition by the appropriate T cells.
Answer
C. They are source of new genetic variation
Explanation
Mutation result in genetic changes allowing species to develop new traits because the DNA changes thus affecting how the living organism will behave, look and adjust to physiology processes. Through mutation, evolution has been achieved because living things can survive as they fit into new environment with new traits acquired through mutation.
Answer:
Cellular Respiration
Explanation:
Respiration = Glucose + Oxygen -> Water + Carbon Dioxide
8. The cell wall<span> is the outer most covering of the </span>cell. ... The cell membrane<span> is present in almost all types of </span>cells<span>. The </span>cell wall<span> is present in bacteria, fungi, algae and plant </span>cell<span>.
9. </span><span>the spreading of something more widely.
10. </span><span>In </span>facilitated diffusion<span>, molecules only move with the aid of a protein in the membrane. In </span>simple diffusion<span>, molecules move down the concentration gradient but in </span>facilitated diffusion molecules move up the concentration gradient.
11. <span>a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one
12. </span>Differences<span>: </span>Passive Transport<span> (or Diffusion) moves ions from high concentration to low, using no metabolic energy. </span>Active Transport<span> moves ions from low concentration to high, using metabolic energy in the form of ATP. ... Both use ion channels to move ions across the cell membrane, in or out of the cell</span>
