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ap benchmark 3 - AP Biology Benchmark III 2.01 Compare and...

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AP Biology Benchmark III 2.01 Compare and contrast prokaryotic and eukaryotic cells. 1. The cytoplasmic channels between plant cells which are most similar to gap junctions between animal cells are called a. middle lamellas b. tonoplasts c. plasmodesmata d. tight junctions e. desmosomes 2. A student using a light microscope observes a cell and correctly decides that it is a plant cell because a. Ribosomes are visible b. An endoplasmic reticulum can be seen c. A cell membrane is present d. It has a large central vacuole e. Centrioles are present 3. Which of the following are characteristic of both prokaryotic and eukaryotic cells? a. Cytoplasm and a well-defined nucleus surrounded by a membrane. b. Membranous sites of ATP synthesis, Golgi complex, and ribosomes c. Mitochondria, nucleus, and ribosomes d. Cell wall, several chromosomes, and cytoplasm e. Cell membrane, ribosomes, DNA, and RNA 4. Unlike the cells of flowering plants, the cells of animals are characterized by which of the following? a. Mitochondria b. A nucleus surrounded by a double membrane c. Centrioles d. A plasma membrane surrounded by a nonliving cell wall e. A single large central vacuole 2.02 Analyze cellular membranes. The following questions refer to an experiment in which a dialysis-tubing bag is filled with a mixture of 3% starch and 3% glucose and placed in a beaker of distilled water, as shown below. After 3 hours, glucose can be detected in the water outside the dialysis-tubing bag, but starch cannot. 5. From the initial conditions and results described which of the following is a logical conclusion? a) The initial concentration of glucose in the bag is higher than the initial concentration of starch in the bag. b) The pores of the bag are larger than the glucose molecules but smaller than the starch molecules. c) The bag is not selectively permeable. d) A net movement of water into the beaker has occurred. e) The molarity of the solution in the bag and the molarity of the solution in the surrounding beaker are the same. 6. Which of the following best describes the condition expected after 24 hours? A. The bag will contain more water than it did in the original condition. B. The contents of the bag will have the same osmotic concentration as the surrounding solution. Page 1 of 15
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AP Biology Benchmark III C. Water potential in the bag will be greater than water potential in the surrounding solution. D. Starch molecules will continue to pass through the bag. E. A glucose test on the solution in the bag will be negative. 7. Which of the following macromolecules is primarily responsible for the insolubility of cell membranes in water? a. Starch b. Cellulose c. Protein d. Phospholipid e. Glycogen 8. The diagram below shows part of the structure of a cell surface membrane (plasma membrane). Which structure will carry out active transport?
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This note was uploaded on 02/07/2011 for the course BIOS 101 taught by Professor Matthews during the Spring '11 term at DeVry Austin.

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ap benchmark 3 - AP Biology Benchmark III 2.01 Compare and...

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