MMBIO 221 EXAM 1 BYU ACTUAL 2025/2026 CORRECTLY ANSWERED

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MMBIO 221 EXAM 1 BYU ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Fungi - Answer -cell wall made of chitin; Eukaryote Algae - Answer -cell wall made of silicates, eukaryotic Protozoa - Answer -Eukaryote Bacteria - Answer -Prokaryotic Virus - Answer -Acellular; only reproduce if they are inside of a living cell What allows a substance to cross a membrane - Answer -Protiens Substances that will never pass through a membrane - Answer -Charged substances Passive movement processes - Answer -No ATP needed 1. Diffusion 2. Facilitaed Diffusion 3. Osmosis Active Transport processes - Answer -Uniport 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 Aniport Symport Group translocation Glycocalyx - Answer -Sticky substance on outside of cell, composed of polysaccharides, Capsule - Answer -A sticky layer that prevents cell from drying out, prevents bacteria from being recognized Flagella Direction - Answer -Counter clock = forward clockwise = backwards Peritrichous vs monotrichus - Answer -One hair vs thousands of hairs Fimbriae - Answer -Helps in movement, not as long as flagella, used to adhere to other bacteria Pili - Answer -short, hairlike protein structures on the surface of some bacteria Bacteria with no cell walls - Answer -Mycoplasma What are most bacteria cell walls composed of? - Answer -Peptidoglycan = NAG-NAM chains, ONLY FOR PROKARYOTES Gram-Positive cell wall - Answer -Thick peptidoglycan Teichoic acids Gram-Negative cell walls 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