a. simple pathogens with cytoplasm,plasma membrane ,organelles and no nucleus b.

Question

a. simple pathogens with cytoplasm,plasma membrane ,organelles and no nucleus b. simple , fast evolving organism with great reproductive potential c. simple particles with genetic material that is inert outside of a cell. d.the least metabolically diverse creatures on planet earth 2. The following describes bacteria a. protein coated genetic material with the ability to take over cells b. simple organisms with great biotic potential c. bags of enzymes, water, genes and ribosomes that evolve rapidly d. b and c 3. Peptidoglycan is found in the following a. Mycoplasms, Chlamydia, archea b. Gram negative bacteria c. blue green algae d. b and c 4. The correct order of hardest to lowest to destroy by physical means is a. Prions gram negative bacteria, enveloped viruses b. Endospores, mycobacteria, gram positive bacteria c. gram positive bacteria, gram negative bacteria, mycobacteria, endospores d. a and b 5. The following are found in every known bacteria a. DNA and RNA b. capsomere c.enzymes d a and c 6. Louis Pasteur was a prominent player in all the following but a fermentation b. vaccines c. germ theory d. solid media development 7. Robert Koch's lab was a major contributor to the following a fermentation b. solid media c. theories of immunity d. b and c 8. Of the following the best disinfectant is .90% methyl alcohol b. bleach c, 90% isopropyl alcohol d. none of the above 9. During the lag phase of growth a. bacteria are not multiplying b. bacteria are dying, resting and multiplying c. bacteria are just multiplying but slower than in log phase. d. bacteria are multiplying rapidly 10.The following describes the Ascomycota a. No polypores here b. Includes Mucor

Explanation / Answer

1) Simple organisms with great biotic potential - Bacteria are prokaryotes that lack cell organelles. They reproduce asexually through binary fission and multiplicate quick. Bacteria though evolve rapidly, they cannot be compared to bags, as they have cell walls. Protein coated genetic material that can take over cells is a virus.

2) b and c - Gram negative bacteria contain a thin layer of peptidoglycan compared to gram positive bacteria and hence cannot stain. Blue green algae are also known as cyanobacteria that contain a thick peptidoglycan layer. Mycoplasma lack cell wall, peptidoglycan is absent in the cell walls of archaea.

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