he bacteria in your digestive system ___. Select one: a. can digest a sugar found in breastmilk b. can produce vitamin E c. can prevent c.diff illness d. are all prokaryotes e. All of the above are true of the bacteria in your digestive system

14. Explain why Mycoplasma and Mycobacterium are atypical cells and diseases caused by each 13.List several antibiotics and a natural protein that specifically targets peptidoglycan; define MRSA* 16.Describe the structure and function of the bacterial membrane and why it is selective permeability

A bacterium that produces an extracellular enzyme may:  a. cause a boil      b. resist an antibiotic      c. degrade external sources of food   d. all answers    e. a and b

Bacterial cells that are _______________ in shape always have an ____________________ which helps them move through solid media like tissue. Select one: a.Spirochete / Axial Filament b.Spirillum / Endoflagella c.Spirochete / Atrichous Flagellum d.None of the Above e.Spirillum / Atrichous Flagellum

D A 5. What conclusion can you draw from the images of E. coli cells (above) taken from a culture in Stage C/D of the graph? A. The cell on the left is probably starving C. The cells will eventually make an endospore to survive D. The cell on the left is dead B. The cell on the right is starving E. Both cells will divide 6. Microbe X is producing 38 ATP per glucose while Microbe Y is producing 2 ATP per glucose. Which of these statements is most likely true? Choose all that apply. A. Microbe Y is probably fermenting sugar B. Microbe X is switching between O2 and NO3 in respiration C. phosphofructokinase is more likely to be inhibited in Microbe Y than Microbe X D. Microbe Y is probably growing anaerobically E. Microbe X is mostly relying on substrate-level phosphorylation H* innnde H* Na+ Na* Cytoplasm periplasm 7. What is responsible for the movement of H* out of the cell (above)? A. outer membrane porins B. flagella motor proteins C. cytochrome oxidase complex D. ATP synthase E. NADH…

You notice that some meat in the refrigerator has a strange odor and suspect that it has been contaminated with bacteria. You remember that heat will kill bacteria, so you go ahead and cook it. What is wrong with this practice?

D-amino acids are not coded for by DNA so how do bacteria acquire them? • A. They use a racemase O B. They use bactoprenol • C. They use a transpeptidase © D. They use lysozyme • E. They use a cross linkase

A typical human body carries 30 to 50 trillion bacteria;most of these are either harmless or helpful, but a feware _____________c and thus cause disease?