front 1 You have isolated a cell w/a peptidoglycan cell wall. What other structure can you safely assume the cell has? | back 1 A plasma membrane. |
front 2 You are observing a Gram stain of rectangular-shaped microorganisms that are linked in a chain & stain purple. How would you describe these bacteria using the correct terminology for the cell shape & arrangement? | back 2 Gram-positive streptobacilli. |
front 3 A Gram stain of a wound reveals purple, spherical-shaped bacteria that divide & remain attach in grapelike clusters. These are referred to as ____. | back 3 Gram-positive staphylococci |
front 4 Which of the following statements does NOT provide evidence for the endosymbiotic theory? | back 4 Prokaryotes contain peptidoglycan in their cell walls. |
front 5 Which of the following statements about a gram-negative cell wall is FALSE? | back 5 It contains teichoic acid. |
front 6 Which of the following processes uses membrane proteins that act as channels or carriers allowing ions or large molecules to move across the plasma membrane without using energy? | back 6 Facilitated diffusion. |
front 7 Which of the following bacterial structures is necessary for chemotaxis? | back 7 Flagella. |
front 8 Which of the following statements is true? | back 8 Endospores are extremely durable structures that can survive high temperatures. |
front 9 Which one of the following pairs is correctly matched? | back 9 Golgi complex-->membrane formation & secretion of proteins. |
front 10 Which of the following is NOT characteristic of the glycocalyx found in bacteria? | back 10 Creates a slimy, slippery coating that prevents bacteria form attaching to surfaces. |
front 11 Which of the following eukaryotic cells do NOT contain a cell wall? | back 11 Animals |
front 12 In prokaryotic cell, all of the following are functions of either the fimbriae or pili EXCEPT _______. | back 12 movement |
front 13 Which of the following membrane transport mechanisms takes place in eukaryotic cells but NOT in prokaryotic cells? | back 13 Endocytosis. |
front 14 Within the cytoplasm of bacterial cells are reserve deposits where certain nutrients accumulate. These are called _____. | back 14 inclusions |
front 15 The nucleus of a eukaryotic cell differs from the nucleoid of a prokaryotic cell in all of the following ways EXCEPT which one? | back 15 The prokaryotic nucleoid contains DNA combined with histones. Histones are lacking in the eukaryotic nucleus. |
front 16 Which of the following is true of bacteria that have atypical cell walls, such as those in the genus Mycoplasma? | back 16 Bacteria w/atypical cell walls are generally among the smallest bacteria that can reproduce outside a host cell. |
front 17 Which of the following statements about ribosomes is FALSE? | back 17 Antibiotics that interfere w/protein synthesis harm both prokaryotic & eukaryotic ribosomes. |
front 18 Which of the following is matched correctly? | back 18 Spheroplast--> gram-negative bacteria that are exposed to lysozyme but retain some of the outer membrane. |
front 19 Spirochetes & spirilla are both spiral-shaped bacteria. However, they differ in that spirochtes have ________ & spirilla do not. | back 19 endoflagella (axial filaments) |
front 20 Penicillin specifically interferes with peptidoglycan synthesis. Which of the following cells is most likely to be damaged by penicillin? | back 20 Gram-positive bacterial cells. |