Bacteria that naturally exhibit bioluminescence have been found in which of the following genera?

A. Pseudomonas
B. Pasteurella
C. Shigella
D. Vibrio


Answer: D

Biology & Microbiology

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A new experimental pesticide is being tested by a large agricultural chemical company. An unfortunate side effect in plants treated with this new product is the partial inhibition of ferredoxin-NADP+ reductase

Given this observation, which of the following would you expect to observe in the photosynthetic cells of these plants? A. decreased rate of trios phosphate production B. decreased levels of NADP+ in the chloroplast C. decreased levels of ATP in the chloroplast D. decreased rate of cyclic electron transport

Biology & Microbiology

The structures of porin proteins in bacterial membranes and mitochondrial and chloroplast outer membranes is atypical for multipass integral proteins,

because the porin transmembrane region is composed of a ________ instead of ________ transmembrane segments as in bacteriorhodopsin. Fill in the blank with correct word.

Biology & Microbiology

Which group of organisms is responsible for primary production in a freshwater lake?

A. Phytoplankton B. Photosynthetic bacteria C. Moss D. Submerged plants E. Aquatic grasses

Biology & Microbiology

A vegan is highly unlikely to become infected with a food-borne pathogen.

Answer the following statement true (T) or false (F)

Biology & Microbiology