Chapter 3
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| Which of the following have the thickest peptidoglycan layer in the cell wall? | Gram positive bacteria
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| Which of the following is TRUE concerning LPS? | It is also called endotoxin
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| Lysosome is an antibacterial enzyme in human tears that degrades peptidoglycan. Which type of organism would be MOST sensitive to lysozomes? | Gram-positive bacteria
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| Mycoplasma have no cell wall, only membrane. What characteristic would you expect for these bacteria? | Sensitivity to osmotic lysis
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| Which of the following statements BEST describes the ribosomes of eukaryotic cells? | Eukaryotic ribosomes are 80s
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| Which of the following is NOT a function of the cytoskeleton in eukaryotic cells? | Helps the cells sense nutrients in its environment
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| Which organelle is responsible for receiving processing and packaging large molecules that are destined to be secreted from the cell? | Golgi Body
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| The ______ plays a role in lipid synthesis and transport | Smooth endoplasmic reticulum
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| What structures must eukaryotic cells have in order to harvest light energy during photosynthesis? | Chloroplasts
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| The lab synthesis of urea disproved what idea? | Organic chemicals could come only from living organisms
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| What are two types of prokaryotic organisms? | Bacteria and archaea
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| What is the typical size range for eukaryotic cells? | 10-100 microliters
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| Which of the following is NOT a characteristic of all living things? | Movement
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| Which of these is found ONLY in eukaryotes? | Endocytosis
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| Sometimes prokaryotic cells are surrounded by a gelatinous sticky substance. What is this structure called? | Glycocalyx
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| Which of the following is NOT a part of bacterial flagella? | Fimbria
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| Cells use _______ to transfer DNA from one cell to another via conjugation. | Pili
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| Which of the following BEST describes one of the functions of the bacterial cell wall? | Protection from osmotic forces
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| Where can lipopolysaccharide be found? | In the outer membrane of Gram-negative bacteria cells.
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| Which of the following is a function of the cytoplasmic membrane? | To control the passage pf substances into and out of the cell
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| Which of the following is TRUE of the selectively permeable membrane? | It maintains a concentration gradient
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| Which of the following statements about endospores is TRUE? | Endospores form in response to harsh environments conditions
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| Which of the following is a difference between prokaryotic and archaeal flagella? | Archaeal flagella are powered by energy stores in ATP
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| Which of these is found in BOTH Gram-negative and Gram-positive cell walls? | Peptidoglycan
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