BYU MMBIO 221 EXAM 1 ROBISON ACTUAL 2025/2026

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BYU MMBIO 221 EXAM 1 ROBISON ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Obligate halophiles - Answer -High osmotic pressure aka lots of salt like the great salt lake Facultative halophiles - Answer -Type that causes acne can be in salty also known as osmolaric but not nessesary Neutrophiles - Answer -Most bacteria Protozoa and pathogens like neutral ph rang 6.5-7.5 Acidophiles - Answer -Really acidic as low as 0 pH Alkalineophiles - Answer -Grow best in basic range up to 11.5 ex cholera Thermophiles - Answer -Higher temperatures above 45C ex hot springs Hyperthermophiles - Answer -Hottest 80C and above Mesophiles - Answer -Room temperature 20-40C Psychrophiles - Answer -Super cold 15-below 0C Barophiles Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com - Answer -High pressures Obligate barophiles - Answer -Super duper high pressures like deep sea trenches Microaerophiles - Answer -Low oxygen levels Capnophiles - Answer -High CO2 and low oxygen Glycocalyx - Answer -Sticky stuff made of polysaccharides or proteins that surround the outside of a cell Two major types of Glycocalyx - Answer -Capsule and slime layer Teichoic acids - Answer -Greek word for wall Polyalcohols with gram positive cell walls Lipopolysaccharide (3 things) - Answer -*Aka endotoxin *Found only in the outer membrane of gram negative cells *lipid A is the active component Peptidoglycan - Answer -Cell wall of bacteria Composed of alternating units of NAG NAM ( N-acetylglucosoamine and N-acetylmuric acid) linked my amino acids Filament hook rod and rings are associated with: - Answer -The bacterial flagellum Group translocation - Answer -Glucose actively enters the cell and is modified Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com