Distinguish among the three types of endocytosis: pinocytosis, receptor-mediated endocytosis, and phagocytosis
What will be an ideal response?
Pinocytosis is for fluid intake, receptor-mediated endocytosis is for the uptake of specific molecules, and phagocytosis is used to move large particles into the cell.
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You just discovered a new virus. This virus infects heart muscle, where it causes inflammation. This virus has a very high mutation rate. Which of the following is the best strategy for finding a treatment for this virus?
A) Develop a vaccine from living viruses. B) Identify the receptor this virus uses and develop an enzyme that blocks the receptor. C) Encourage infected individuals to engage in heart-strengthening exercise. D) Develop a drug that blocks the host's ribosomes, which the virus uses to produce its proteins.
The enzymes responsible for hydrolyzing glucose into G3P are found in what part of the cell?
a. cytosol b. mitochondria c. rough ER d. nucleus e. cell membrane
Which time period has the greatest richness of fossilized invertebrates?
A) Cambrian B) Carboniferous C) Cretaceous D) Cenozoic
Which of the following is not true of cellulose?
A. It is the most abundant organic compound on Earth. b. it differs from starch because of the configuration of glucose and the geometry of the glycosidic linkage. c. It may be hydrogen-bonded to neighboring cellulose molecules to form microfibrils. d. Few organisms have enzymes that hydrolyze this glycosidic linkages. e. Its monomers are glucose with nitrogen containing appendages