Chapter 6 quizzes

Chapter 6 quizzes - 1 Chapter 6 Self-Quiz 1 The symptoms of...

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Chapter 6: Self-Quiz 1 . The symptoms of a certain inherited disorder in humans include breathing problems and, in males, sterility. Which of the following is a reasonable hypothesis for the molecular basis of this disorder? a defective enzyme in the mitochondria defective actin molecules in cellular microfilaments defective dynein molecules in cilia and flagella abnormal hydrolytic enzymes in the lysosomes defective ribosome assembly in the nucleolus 2 . Choose the statement that correctly characterizes bound ribosomes. Bound ribosomes are enclosed in their own membrane. Bound and free ribosomes are structurally different. Bound ribosomes generally synthesize membrane proteins and secretory proteins. The most common location for bound ribosomes is the cytoplasmic surface of the plasma membrane. All of the above. 3 . Which of the following is not considered part of the endomembrane system? nuclear envelope chloroplast Golgi apparatus plasma membrane ER 4 . Cells of the pancreas will incorporate radioactively labeled amino acids into proteins. This "tagging" of newly synthesized proteins enables a researcher to track the location of these proteins in a cell. In this case, we are tracking an enzyme that is eventually secreted by pancreatic cells. Which of the following is the most likely pathway for movement of this protein in the cell? ER?Golgi?nucleus Golgi?ER?lysosome nucleus?ER?Golgi ER?Golgi?vesicles that fuse with plasma membrane ER?lysosomes?vesicles that fuse with plasma membrane 5 . Which of the following structures is common to plant and animal cells? chloroplast wall made of cellulose tonoplast mitochondrion centriole 6 . Which of the following is present in a prokaryotic cell? mitochondrion ribosome nuclear envelope chloroplast ER 7 . Which type of cell would probably provide the best opportunity to study lysosomes? muscle cell nerve cell phagocytic white blood cell leaf cell of a plant bacterial cell 1
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8 . Which of the following statements is a correct distinction between prokaryotic and eukaryotic cells attributable to the absence of a prokaryotic cytoskeleton? Organelles are found only in eukaryotic cells. Cytoplasmic streaming is not observed in prokaryotes. Only eukaryotic cells are capable of movement. Prokaryotic cells have cell walls. Only the eukaryotic cell concentrates its genetic material in a region separate from the rest of the cell. 9 . Which of the following structure-function pairs is mismatched? nucleolus; ribosome production lysosome; intracellular digestion ribosome; protein synthesis Golgi; protein trafficking microtubule; muscle contraction 10 . Cyanide binds with at least one of the molecules involved in the production of ATP. Following exposure of a cell to cyanide, most of the cyanide could be expected to be found within the mitochondria. ribosomes.
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This note was uploaded on 09/01/2009 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas.

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Chapter 6 quizzes - 1 Chapter 6 Self-Quiz 1 The symptoms of...

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