Question

1.) Mycoplasmas are bacteria that lack a peptidoglycan las There are 27 an layer or outer membrane. Therefore, on the basis A) they would stain pink with gram stain. B) they would stain purple with gram stain C) they also lack a cell membrane. D) they would look just like animal cells. use light energy to generate chemical 2.) How would you classify a purple non-sulfur bacteria, which can u energy, but requires carbon from a source other than CO, to survive A) photoautotroph B) photoheterotroph C) chemoautotroph D) chemoheterotroph system, when f other michant, it cause bacteria lives on the surface of a plan inhibiting the groshe xylem of the scribed ab t's root system, where it obtains nutrition from the w manage to get into the xylem of the plant, it causes a Bical roles does the bacterium play in the situation described above? 3.) Suppose a species of bacteria lives on the surface of a plant's root system, plant's root system, while providing nitrogen to the plant and inhibiting the growth plant pathogens. However, should this bacterium somehow manage to get into fatal disease. Which of the following ecological roles does the bacterium play in th 1. nutrient recycler 2. mutualist 3. commensal 4. pathogen 5. primary producer A) 5,3 B) 5,2 C) 2,3 D) 2,4 4.) Some researchers have begun attempting to precipitate radioactive uranium from groundwater by adding nonindigenous microbes to the soil, in the hopes that these bacteria will remove the dangerous radioactive chemical in the soil and groundwater. This is an example of_ A) bioremediation B) transduction C) heterocyst utilization D) transformation 5.) Which of the following traits do most archaeans and bacteria share? 1. A peptidoglycan cell wall 2. A cell membrane 3. Lack of a nuclear membrane 4. Susceptibility to antibiotics A) 1 and 2 B) 2 and 3 C) 3 and 4 D) 1 and 4

Answer 1

♡ As mycoples Mycoples ma lacks a peptidoglycan cayen on the membrane, they are gram ove bacteria as they a lack pe lack peptidoglycan they Can't stain violet in aram staining and they starp pink in arrcim staining in enj Although initially they were gram positive bacteria they lost their con walls and becam Gram negative, But they have cen membrane and they don't look like animal cells. Hence option is correct antara S According I only asked to cupdated HomeworkLib policy answered bingt question by young