Micro 260, LCC, optional exam_ Updated Questions and Answers 100% Already Graded A+ Excel

Micro 260, LCC, optional exam_ Updated Questions and Answers 100% Already Graded A+ Excel What is the study of fungi - CORRECT ANSWER-Mycology Which of the following is not a domain in the three-domain system? bacteria animalia archea Eukarya - CORRECT ANSWER-Animalia A unicellular organism which lives in a hot sulfur vent on the ocean floor and lacks peptidoglycan in it's cell wall would belong to the domain - CORRECT ANSWER-Archaea Who was credited with first describing living microorganisms - CORRECT ANSWER-Anton Van Leeunwenhoek Some bacteria stain Gram-positive and others stain Gram-negative due to differences in the structure of their - CORRECT ANSWER-cell wall Of the following, which one is not found in prokaryotic cells? plasma membrane chromosome mitochrondria plasmids ribosomes - CORRECT ANSWER-mitochondria The semipermeable structure controlling the transport of materials between the cell and its external environment is the - CORRECT ANSWER-Plasma membrane Plasmid - CORRECT ANSWER-circular molecules of extra chromosomal DNA When placed into a hypertonic solution (higher concentration of solutes outside than inside the cell), a bacterial cell will: - CORRECT ANSWER-shrink Endospores - CORRECT ANSWER-allow a cell to survive environmental changes components of Gram positive bacterial cell wall - CORRECT ANSWER-peptidoglycan teichoic acid peptide chains n-acetylmuramic acid the difference between simple passive diffusion and facilitated diffusion is that facilitated diffusion - CORRECT ANSWER-requires transporter (carrier) proteins If you begin with 100 actively dividing bacteria with a generation time of 20 minutes, how many bacteria will you have in 2 hours? - CORRECT ANSWER-6400 This dimorphic fungus is found in the desert soils of the southwestern US - CORRECT ANSWER-Coccidioides immitis What stage of plasmodium is injected into the bloodstream? - CORRECT ANSWER-sporozoite Histoplamsa capsulatum is a dimorphic fungus, which means that it - CORRECT ANSWER-grows as a yeast at body temp, but a mold at room temp Which of the following is an emerging fungal pathogen in the Pacific Northwest, causing serious infections in persons with normal immune function - CORRECT ANSWER-Cryptococcus gattii Cryptosporidium is most likely to cause which of the following diseases - CORRECT ANSWER-diarrhea what is the definitive host for plasmodium - CORRECT ANSWER-mosquito thrush and vaginitis are cause by? - CORRECT ANSWER-Candida albicans what is the medical term for fungal nail infection - CORRECT ANSWER-Tinea unguium transcriptionn - CORRECT ANSWER-the process of building a mRNA molecule using DNA as a template What is the "building blocks" of proteins - CORRECT ANSWER-amino acids What nitrogenous base is not found in an RNA molecule? - CORRECT ANSWER-thymine virtually all enzymes are ? - CORRECT ANSWER-proteins If a codon has a base sequence of AGU, then the complementary anticodon would be - CORRECT ANSWER-UCA on tRNA