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TCC Nebauer Ch3 Quiz
| Question | Answer |
|---|---|
| Which of the following organelles is present in both prokaryotic and eukaryotic cells? A. mitochondria B. a nucleus C. endoplasmic reticulum D. ribosomes | D. Ribosomes |
| following are true about bacterial cell walls EXCEPT A Peptidoglycan is made of NAG,NAM,& amino acids B Gram+ has have teichoic acids. C Gram- has Lipid A which can cause problems during infections D The periplasmic space is a feature of Gram + cell | D. The periplasmic space is a feature of Gram-positive cell walls |
| Thiomargarita namibiensis is notable microbebecause A It is a eukaryotic cell that is the same size as E. coli. B the largest prokaryotic microbe ever discovered. C a prokaryote with a primitive nucleus. D a eukaryote with a prokaryotic-type flagel | It is the largest prokaryotic microbe ever discovered. |
| Cells engaging in taxis are exhibiting which of the following basic processes of life? A. growth B. reproduction C. responsiveness D. metabolism | responsiveness |
| All of the following eukaryotic cellular structures contain tubulin microtubules except ____________________. A. flagella. B. chloroplasts. C. cilia. D. the cytoskeleton | chloroplasts |
| Which of the following structures is not present in eukaryotic flagella? A. hook B. basal body C. filament D. All of the above are present in eukaryotic flagella. | hook |
| Crenation, the shriveling of cells due to loss of water, occurs when cells are placed in what kind of solution? A. isotonic B. hypotonic C. hypertonic | hypertonic |
| Which of the following organelles is involved in the production and transport of proteins throughout the cell? A. smooth endoplasmic reticulum B. ribosomes C. the Golgi body D. rough endoplasmic reticulum | rough endoplasmic reticulum |
| The endosymbiotic theory is one possible explanation for the origin of which of the following organelles? A. chloroplasts B. centrioles C. Golgi bodies D. peroxisomes | chloroplasts |
| the following is a true about flagella A Runs and tumbles are eukaryotic cell movement. B Prokaryotic flagella rotate instead of whipping back and forth. C Flagellin is only found only in eukaryotic flagella D Prokaryotic flagella have a 9+2 arrange | Prokaryotic flagella rotate instead of whipping back and forth |
| Movement of a bacterium toward a chemical substance is called ____________________. A. positive phototaxis. B. positive chemotaxis. C. negative phototaxis. D. negative chemotaxis. | positive chemotaxis |
| A reserve deposit of valuable nutrients found in many cells is called a(n) A. centriole. B. organelle. C. inclusion. D. nucleoid. | inclusion |
| All of the following are true statements concerning fimbriae EXCEPT: A. they play an important role in bacterial disease. B. they are important for bacterial conjugation. C. they are shorter than flagella or pili. D. they help bacteria form biofilm | they are important for bacterial conjugation |
| glycocalyx of micro cells has the following EXCEPT A enhances the ability of pathogenic microbes to colonize B provides a mechanism of attachment for the microbe. C keeps microbe from drying out. D enhances destruction of the microbe by immune cell | it enhances destruction of the microbe by immune cells |
| The cytoplasmic membrane A is composed primarily of phospholipids and proteins. B. incorporates water molecules into its structure, as defined by the fluid mosaic model. C. allows molecules of all types to pass freely. D. All of the above are corr | is composed primarily of phospholipids and proteins |
| Which of the following kinds of molecules would NOT be expected to cross the cytoplasmic membrane by diffusion alone? A. small molecules B. electrically charged molecules C. lipid soluble molecules D. All of these can cross the membrane by diffusio | electrically charged molecules |
| All of the following statements concerning peptidoglycan are true EXCEPT: A Gram- walls have an in and an out peptidoglycan layer B Peptidoglycan is made of repeating monosaccharide C Polypeptide crossbridges to rigidity of the molecule D Peptido is | Gram-negative cell walls have an inner and an outer peptidoglycan layer |
| Passive transport of molecules that requires specific channel proteins is called ____________________. A. osmosis. B. endocytosis. C. facilitated diffusion. D. group translocation | facilitated diffusion |
| Which of the following molecules is not found in eukaryotic cell walls? A. cellulose B. peptidoglycan C. chitin D. carrageenan | peptidoglycan |
| Which of the following organelles is involved in the degradation of toxic molecules? A. lysosomes B. endoplasmic reticulum C. Golgi bodies D. peroxisomes | peroxisomes |
Created by:
sarah.teacher36
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