Chapter 2 Practice Questions

75 column 1 interphase column 2 replication of dna

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75) Column 1: interphase Column 2: replication of DNA and organelles Answer: replication of DNA and organelles Topic: SOMATIC CELL DIVISION 76) Column 1: prophase Column 2: chromosomes are visible as 46 double-stranded structures Foil: mitochondrial membranes disintegrate Answer: chromosomes are visible as 46 double-stranded structures Topic: SOMATIC CELL DIVISION 4
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77) Column 1: prophase Column 2: nucleoli disappear Answer: nucleoli disappear Topic: SOMATIC CELL DIVISION 78) Column 1: metaphase Column 2: centromeres of chromosomes attach to spindle in the equatorial plane Answer: centromeres of chromosomes attach to spindle in the equatorial plane Topic: SOMATIC CELL DIVISION 79) Column 1: anaphase Column 2: centromeres divide so that the sister chromatids separate Answer: centromeres divide so that the sister chromatids separate Topic: SOMATIC CELL DIVISION 80) Column 1: anaphase Column 2: daughter chromosomes begin to move to opposite poles of the cell Answer: daughter chromosomes begin to move to opposite poles of the cell Topic: SOMATIC CELL DIVISION 81) Column 1: telophase Column 2: nuclear membrane becomes visible again around two separate masses of chromatin Answer: nuclear membrane becomes visible again around two separate masses of chromatin Topic: SOMATIC CELL DIVISION 82) Column 1: telophase Column 2: cleavage furrow deepens to accomplish complete cell division Answer: cleavage furrow deepens to accomplish complete cell division Topic: SOMATIC CELL DIVISION Irrelevant questions 2) Which of the following is not considered to be true of peripheral proteins of the plasma membrane? A) Some serve as cell identity markers. B) Some act as linking molecules between plasma membranes of adjacent cells.. C) Some form diffusion pores in the plasma membranes. D) Some act as enzymes. Answer: C Topic: PLASMA MEMBRANE 3) Which of the following is true of the glycocalyx of a cell? 1. It functions as a cell identity marker, allowing the body to differentiate between self and non-self cells. 2. It consists of the carbohydrate portions of glycolipids and glycoproteins of the plasma membrane. 5
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3. It provides a defensive layer against extracellular enzymes. 4. In some cells it attracts water molecules, thus protecting against desiccation or facilitating movement of the cell (as for red blood cells). 5. It facilitates cell-to-cell adhesion in some tissues. A) 1, 2, 3, 4, 5 B) 1, 2, 3, 4 C) 2, 4, 5 D) 1, 3, 4 Answer: A Topic: PLASMA MEMBRANE
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