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13 Nov 2019
Which of the following types of molecules are the major structural components of the ell membrane? A. Phospholipids and cellulose. B. Nucleic acids and proteins. C. Phospholipids and proteins. D. Proteins and cellulose. E. Glycoproteins and cholesterol. 8. A primary objective of cell fractionation is to: A) View the structure of cell membranes. B) Sort cells based on their size and weight. C) Determine the size of various organelles. D) Separate the major organelles so that their particular functions can be determined. E) Separate lipid-soluble from water-soluble molecules. 9. All of the following are part of a prokaryotic cell except A) DNA. B) A cell wall. C) A plasma membrane D) Ribosomes. E) An endoplasmic reticulum. 10. Which of the following are found in plant, animal, and bacterial cells? A) Mitochondria. B) Ribosomes. C) Chloroplasts. D) Endoplasmic reticulum. 11. A cell with a predominance of smooth endoplasmic reticulum is likely specialized to A. Store large quantities of water. B. Import and export large quantities of protein. C. Actively secrete large quantities of protein. D. Synthesize large quantities of lipids. 12. Cilia and flagella bend because of A) Conformational changes in ATP that thrust microtubules laterally. B) A motor protein called radial spokes. C) Contraction by myosin. D) A motor protein called dynein.
Which of the following types of molecules are the major structural components of the ell membrane? A. Phospholipids and cellulose. B. Nucleic acids and proteins. C. Phospholipids and proteins. D. Proteins and cellulose. E. Glycoproteins and cholesterol. 8. A primary objective of cell fractionation is to: A) View the structure of cell membranes. B) Sort cells based on their size and weight. C) Determine the size of various organelles. D) Separate the major organelles so that their particular functions can be determined. E) Separate lipid-soluble from water-soluble molecules. 9. All of the following are part of a prokaryotic cell except A) DNA. B) A cell wall. C) A plasma membrane D) Ribosomes. E) An endoplasmic reticulum. 10. Which of the following are found in plant, animal, and bacterial cells? A) Mitochondria. B) Ribosomes. C) Chloroplasts. D) Endoplasmic reticulum. 11. A cell with a predominance of smooth endoplasmic reticulum is likely specialized to A. Store large quantities of water. B. Import and export large quantities of protein. C. Actively secrete large quantities of protein. D. Synthesize large quantities of lipids. 12. Cilia and flagella bend because of A) Conformational changes in ATP that thrust microtubules laterally. B) A motor protein called radial spokes. C) Contraction by myosin. D) A motor protein called dynein.
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