A Tour of the Cell. Chapter 6. Active Lecture Questions for use with Classroom Response Systems Biology, Seventh Edition Neil Campbell and Jane Reece

Transcription

1 Chapter 6 A Tour of the Cell Active Lecture Questions for use with Classroom Response Systems Biology, Seventh Edition Neil Campbell and Jane Reece Edited by William Wischusen, Louisiana State University Copyright 2005 Pearson Education, Inc. publishing as Benjamin Cummings

2 1. In which cell would you expect to find the most tight junctions? a. Muscle cell in the thigh muscle of a longdistance runner b. Pancreatic cell that manufactures digestive enzymes c. Macrophage (white blood cell) that engulfs bacteria d. Epithelial cells lining the digestive tract e. Ovarian cell that produces estrogen (a steroid hormone)

3 2. In which cell would you expect to find the most lysosomes? a. Muscle cell in the thigh muscle of a longdistance runner b. Pancreatic cell that manufactures digestive enzymes c. Macrophage (white blood cell) that engulfs bacteria d. Epithelial cells lining the digestive tract e. Ovarian cell that produces estrogen (a steroid hormone)

4 3. In which cell would you expect to find the most smooth endoplasmic reticulum? a. Muscle cell in the thigh muscle of a longdistance runner b. Pancreatic cell that manufactures digestive enzymes c. Macrophage (white blood cell) that engulfs bacteria d. Epithelial cells lining the digestive tract e. Ovarian cell that produces estrogen (a steroid hormone)

5 4. In which cell would you expect to find the most bound ribosomes? a. Muscle cell in the thigh muscle of a longdistance runner b. Pancreatic cell that manufactures digestive enzymes c. Macrophage (white blood cell) that engulfs bacteria d. Epithelial cells lining the digestive tract e. Ovarian cell that produces estrogen (a steroid hormone)

6 5. In which cell would you expect to find the most mitochondria? a. Muscle cell in the thigh muscle of a longdistance runner b. Pancreatic cell that manufactures digestive enzymes c. Macrophage (white blood cell) that engulfs bacteria d. Epithelial cells lining the digestive tract e. Ovarian cell that produces estrogen (a steroid hormone)

7 6. Of the following, which is probably the most common route for membrane flow in the endomembrane system? a. Golgi lysosome ER plasma membrane b. tonoplast plasma membrane nuclear envelope smooth ER c. nuclear envelope lysosome Golgi plasma membrane d. rough ER vesicles Golgi plasma membrane e. ER chloroplasts mitochondrion cell membrane

8 7. 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? * a. ER Golgi nucleus b. Golgi ER lysosome c. nucleus ER Golgi d. ER Golgi vesicles that fuse with plasma membrane e. ER lysosomes vesicles that fuse with plasma membrane

9 8. Which type of cell would probably provide the best opportunity to study lysosomes? a. muscle cell b. nerve cell c. phagocytic white blood cell d. leaf cell of a plant e. bacterial cell

10 Ch 6 answers 1. D 2. C 3. E 4. B 5. A 6. D 7. D 8. C