Practice_Midterm_II_B

Practice_Midterm_II_B - MCDB 1A Summer 2006 Name _ 1. The...

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MCDB 1A Summer 2006 Name ______________________ 1. The one type of cell always lacking a cell wall is the _____ cell. A) bacterial B) plant C) animal D) fungal E) prokaryotic 2. An organelle consisting of a series of flattened sacks stacked somewhat like pancakes is the A) mitochondrion. B) chloroplast. C) Golgi apparatus. D) rough endoplasmic reticulum. E) lysosome. 4. Which of the following is not an argument in support of the endosymbiotic theory? A) Mitochondria and chloroplasts have double membranes. B) Mitochondria and chloroplasts have DNA and ribosomes. C) Mitochondria and chloroplasts can self-sustain when grown in a cell-free culture. D) Mitochondrial ribosomes are similar to bacterial ribosomes. E) Some bacteria contain cristae folds that are similar to those of the mitochondria. 5. Which is a function of a plant cell vacuole? A) Storage of toxic wastes. B) Support of the cell wall. C) Storage of food and nutrients. D) A and B. E) A, B and C. 6. Microtubules are made of A) actin, and they function in locomotion. B) tubulin, and they are found in cilia. C) tubulin, and they are found in microvilli. D) actin, and they function to change cell shape. E) polysaccharides, and they function in locomotion. 7. The nuclear envelope, which comprises the inner and out membrane of the nucleus, is continuous with A) the endoplasmic reticulum. B) the golgi apparatus. C) lysosome. D) the mitochondria. E) All of the above 8. The DNA of mitochondria A) is essential for the regulation of glycogen. B) is used to make proteins needed for cellular respiration. C) directs cellular metabolism. D) controls extracellular transport of lipids. E) synthesized polysaccharides for the extracellular matrix. 9. Which of the following is not a characteristic of prokaryotic cells? A) A plasma membrane.
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Practice_Midterm_II_B - MCDB 1A Summer 2006 Name _ 1. The...

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