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Preview Chapter 8 Multiple Choice Short Response Extended Response

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1 Preview Chapter 8 Multiple Choice Short Response Extended Response
Standardized Test Prep Preview Multiple Choice Short Response Extended Response

2 Chapter 8 Multiple Choice
Standardized Test Prep Multiple Choice 1. Which of the following statements about prokaryotic chromosomes is true? A. Prokaryotes have at least two chromosomes. B. Prokaryotic chromosomes consist of a circular DNA molecule. C. Prokaryotic chromosomes include histone and nonhistone proteins. D. Prokaryotic chromosomes are made of DNA wrapped tightly around histone proteins.

3 Multiple Choice, continued
Chapter 8 Standardized Test Prep Multiple Choice, continued 1. Which of the following statements about prokaryotic chromosomes is true? A. Prokaryotes have at least two chromosomes. B. Prokaryotic chromosomes consist of a circular DNA molecule. C. Prokaryotic chromosomes include histone and nonhistone proteins. D. Prokaryotic chromosomes are made of DNA wrapped tightly around histone proteins.

4 Multiple Choice, continued
Chapter 8 Standardized Test Prep Multiple Choice, continued 2. Crossing-over occurs during which process? F. mitosis G. meiosis I H. meiosis II J. interphase

5 Multiple Choice, continued
Chapter 8 Standardized Test Prep Multiple Choice, continued 2. Crossing-over occurs during which process? F. mitosis G. meiosis I H. meiosis II J. interphase

6 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued The graph below shows the relative mass of DNA and chromosome number for a cell undergoing mitosis. Use the graph to answer the questions that follow. 3. In which phase of mitosis do chromatids separate and become individual chromosomes? A. prophase B. metaphase C. anaphase D. telophase/cytokinesis

7 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued The graph below shows the relative mass of DNA and chromosome number for a cell undergoing mitosis. Use the graph to answer the questions that follow. 3. In which phase of mitosis do chromatids separate and become individual chromosomes? A. prophase B. metaphase C. anaphase D. telophase/cytokinesis

8 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued The graph below shows the relative mass of DNA and chromosome number for a cell undergoing mitosis. Use the graph to answer the questions that follow. 4. What process occurs that leads to the decrease in the cell’s DNA mass? F. prophase G. metaphase H. anaphase J. telophase/cytokinesis

9 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued The graph below shows the relative mass of DNA and chromosome number for a cell undergoing mitosis. Use the graph to answer the questions that follow. 4. What process occurs that leads to the decrease in the cell’s DNA mass? F. prophase G. metaphase H. anaphase J. telophase/cytokinesis

10 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued 5. prokaryote : binary fission :: eukaryote : A. mitosis B. cytokinesis C. crossing-over D. genetic recombination

11 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued 5. prokaryote : binary fission :: eukaryote : A. mitosis B. cytokinesis C. crossing-over D. genetic recombination

12 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued The diagram below shows a model of cell division. Use the diagram to answer the question that follows. 6. Which type of cell division is shown in the diagram? F. mitosis G. meiosis H. binary fission J. sexual reproduction

13 Multiple Choice, continued
Standardized Test Prep Chapter 8 Multiple Choice, continued The diagram below shows a model of cell division. Use the diagram to answer the question that follows. 6. Which type of cell division is shown in the diagram? F. mitosis G. meiosis H. binary fission J. sexual reproduction

14 Chapter 8 Short Response
Standardized Test Prep Chapter 8 Short Response Human cells are either diploid or haploid. All human cells with 46 chromosomes are diploid. Would a human cell with any 23 chromosomes be haploid? Explain your answer.

15 Short Response, continued
Standardized Test Prep Chapter 8 Short Response, continued Human cells are either diploid or haploid. All human cells with 46 chromosomes are diploid. Would a human cell with any 23 chromosomes be haploid? Explain your answer. Answer: No, a haploid cell has one complete set of chromosomes, which in the case of humans is 23. Randomly having 23 chromosomes would not be considered haploid.

16 Chapter 8 Extended Response
Standardized Test Prep Chapter 8 Extended Response For a cell to function efficiently, its surface area must exceed that of its volume. Part A Explain how cell division maintains the relationship between surface area and volume. Part B How does a stable ratio between surface area and volume help maintain proper cell functioning?

17 Extended Response, continued
Standardized Test Prep Chapter 8 Extended Response, continued Answer: Part A The smaller the cell, the greater is the ratio of surface area to volume. Cell division makes one larger cell into two smaller cells. Part B By having a stable ratio between surface area and volume, cells are able to maintain homeostasis by taking in and getting rid of substances efficiently through osmosis and diffusion.


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