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02:12A patient is admitted to the hospital and given intravenous (IV) fluids. Four hours later, the patient complains that his mouth and eyes feel dry. You notice that he displays signs of dehydration, and when you check his IV, you see that he was given the wrong kind of fluids. Were these fluids likely hypotonic, isotonic, or hypertonic? Explain.
A hypothetical poison prevents transcription factors from binding to the gene for tubulin proteins. What impact would this have on mitosis, and why?
Match the following terms with the correct functions.
_____Peroxisome
_____Ribosome
_____Smooth endoplasmic reticulum
_____Mitochondrion
_____Golgi apparatus
_____Lysosome
_____Rough endoplasmic reticulum
_____Vesicle
a. Modifies and folds proteins into the correct structure
b. Modifies, packages, and sorts proteins
c. Contains digestive enzymes
d. Granular organelle that makes proteins
e. Synthesizes most of a cell's ATP
f. Contains enzymes that oxidize toxins and fatty acids
g. Membrane-enclosed structure used to transport substances through the cell
h. Detoxifies certain chemicals, makes lipids, stores calcium ions
Which of the following best describes the arrangement of the main component of the plasma membrane?
a. A monolayer of phospholipids with the phosphate heads facing the cytosol and the fatty acid tails facing the extracellular fluid
b. A bilayer of phospholipids with the phosphate heads facing the cytosol and extracellular fluid, and the fatty acid tails facing one another
c. A bilayer of phospholipids with the phosphate heads of one layer facing the fatty acid tails of the other
d. A bilayer of phospholipids with a layer of triglycerides sandwiched in the middle
Write a single sentence, using no more than 25 words, to summarize each of the following cellular processes:
Primary active transport
Write a single sentence, using no more than 25 words, to summarize each of the following cellular processes:
Mitosis
