Biol211: Microbiology - Exam 1 Q&a 2024

What are the characteristics of gram negative cell wall? {Ans: Thin peptidoglycan layer Has outer layer (to make up for not having thick peptidoglycan layer like in gram negative) Lipopolysaccharide (LPS) layer, can be turned into toxins}What are chloroplasts and what do they do? {Ans: Found in algae and plant cells Convert sunlight into energy via photosynthesis with oxygen as a product}All fungi are heterotrophic, what does that mean? {Ans: Most obtain substrates from the remnants of dead plants and animals in soil or water - saprobes Fungi can also be parasites (a living organism feeding off another organism)}What are thylakoids? {Ans: Membrane folded into small, disc-like sac. Found inside chloroplast}What is the limiting environmental factor for protozoa? {Ans: Availability of moisture}What is the best way to kill a protozoa? {Ans: Dry it out}