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What is this? What special ability does it have? Does it have organelles to perform this activity?
Nostoc a type of cyanobacteria
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- What feature of mycobacteria is responsible for the unusually slow growth of these bacteria? They have limited numbers of ribosomes so protein production is slow. They cannot fully metabolize carbohydrates and must rely on fermentation. They lack a cell wall and are extremely fragile. The mycolic acid in their cell walls requires signification metabolic investment. Their low tolerance for oxygen retards their growth.Small bristle-like structures used by bacteria for movement are: O flagella O cytoskeleton O cilia O microfilamentsI took this picture recently of an organism growing on the surface of a rock. What type of organism is this? Protozoan Eubacteri Cyanobacteria Mushroom Lichen
- What cellular structure protects bacteria from drying out? Peptidoglycan Glycocalyx Fimbriae Cytoplasmic membraneWhat major group of prokaryotes generates oxygen by photosynthesis? Group of answer choices Spirochetes Cyanobacteria Proteobacteria Gram-positive bacteriaPenicillin inhibits bacterial growth by preventing the cross-linking during peptidoglycan synthesis. Why does penicillin not inhibit growth of archaeal cells? Group of answer choices Most archaeal cells have a cell wall, but it is not composed of peptidoglycan. Archaeal cells do not have a cell wall. Penicillin is unable to penetrate the lipid outer membrane that blocks access of penicillin to the peptidogycan crosslinking enzymes. Pencillin is unable to penetrate the S layer to reach the peptidoglycan layer underneath.
- What features of mitochondria are similar to bacteria? Select all that apply. Independent movement Membrane-bound ribosomes Circular DNA similar to plasmids Cellular machinery for photosynthesisIchthyophthirius multifiliis - the etiologic agent of "ich". Life Cycle What role do each of the following play? Organelle of Lieberkunn perforatorium mucocystMycoplasmas are bacteria that lack cell walls. On the basis of this structural feature, which statement concerning mycoplasmas should be true? They are gram-negative. They are subject to lysis in hypotonic conditions. They lack a cell membrane as well. They should contain less cellulose than do bacteria that possess cell walls. They possess typical prokaryotic flagella.
- Which of the following is only found in archaea? glycerol diethers a nucleus a cell wall N-acetylmuramic acidI am stuck on my homework α-proteobacteria species are important because ______? Choose all the correct statements below to fill in the blank above. Group of answer choices they can serve as mutualistic symbionts they can serve as parasitic symbionts they once served as a mutualistic symbiont to produce the mitochondria their lineage gave rise to the lineage of all eukaryotesBacillus Coccus Spirochete Vibrio The absence of which organelle separates bacteria from being classified as eukaryotes? O nucleus O cell wall ribosome cell membrane True or False: Prokaryote's DNA is in the form of one single, circular
