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BSC 2085 Exam 1 - Cell Quiz well answered to pass
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BSC 2085 Exam 1 - Cell Quiz well answered to pass
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BSC 2085 Exam 1 - Cell QuizPeripheral proteins function as ______.
A. pores and channels
B. enzymes
C. receptors
D. all of these are functions - correct answer ✔✔All of these are functions
(Remember: "Peripheral proteins" are on the surface of the plasma membrane of the cell)
The organelle that functions to synthesize membrane integral proteins and phospholipids are the
______.
A. rough endoplasmic reticulum
B. plasma membrane
C. smooth endoplasmic reticulum
D. cytosol - correct answer ✔✔Rough Endoplasmic Reticulum (Rough ER)
ATP via aerobic cellular respiration is produced by the golgi apparatus.
True or False? - correct answer ✔✔False
(Remember: ATP is produced in the Mitochondria!)
Centrioles function as enzyme-containing sacs that digest worn out cell parts or unwanted substances,
bacteria, viruses, and toxins.
, True or False? - correct answer ✔✔False
(That would be Lysosomes!)
The cilia are short hair-like projections that propel substances on cell surface.
True or False? - correct answer ✔✔True
Which of the following is an "active" physiological process?
A. filtration
B. diffusion
C. osmosis
D. endocytosis - correct answer ✔✔Endocytosis
(Remember: anything with Diffusion, Osmosis, or Filtration is PASSIVE!)
Which solution tonicity would cause crenation of a red blood cell?
A. hypertonic
B. isotonic
C. hypotonic
D. gin and tonic - correct answer ✔✔Hypertonic
Remember: Crenation means "shrink"! Cells shrink in a hypertonic solution when water moves from
inside the cell to the outside because the solution has a higher osmolarity (high solute concentration,
low water concentration) than inside the cell!
When solute concentration goes up, water concentration goes down! Water moves by Osmosis from
areas of low solute (high water) to high areas of solute (low water)!
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