The fluid mosaic model proposed by Singer and Nicolson in 1972 explained that
A. the cell membrane was composed of lipids and proteins.
B. the cell membrane was composed of a phospholipid bilayer between two layers of globular proteins.
C. the cell membrane was composed of a phospholipid bilayer with globular proteins actually inserted into the bilayer.
D. the cell membrane was composed of a phospholipid bilayer but the polar ends of the phospholipid molecules were reversed.
C. the cell membrane was composed of a phospholipid bilayer with globular proteins actually inserted into the bilayer.
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Which of the following is NOT a staphylococcal disease?
A) acne B) boils C) strep throat D) meningitis
Coated pits containing clathrin do not permit concentration of ingested macromolecules prior to endocytosis.
Answer the following statement true (T) or false (F)
If a person experiences blood loss due to trauma and is in danger of going into shock, the standard treatment is to supply the person with intravenous saline solution. What support does this provide? Why is this treatment less effective than supplying whole blood?
What will be an ideal response?
What might one expect to see in a graph depicting realized niche space in a community?
A) one dominant species utilizing all of the resources B) large overlap between species resource use C) reduced overlap between species resource use D) each species utilizing its full resources