What part of the cell surrounds the nucleus but is separated from the outside by a cell membrane? ...

What part of the cell surrounds the nucleus but is separated from the outside by a cell membrane?
 
  A) Extracellular fluid B) Cytoplasm C) Interstitial fluid D) Both A and B

Question 2

________ disorders develop when the immune response targets normal body cells and tissues.
 
  A) Immunodeficiency B) Autoimmune C) Allergy D) None of the above

Question 3

Only about 1.5 percent of the oxygen content of arterial blood consists of oxygen molecules in solution. The rest of the oxygen molecules are bound to ________ molecules.
 
  A) leukocyte B) hemoglobin C) macrophage D) hematocrit

Question 4

Glycogen is an important energy reserve that can be used when the cells cannot obtain enough glucose from the pancreas.
 
  Indicate whether the statement is true or false