Motility,via flagella, is metabolically expensive for the cell.Microbiologists have noticed that many motile cells have storagepolymers in their cytoplasm. Also while not all motile cells areGram negative, the majority are. What role would storage polymersand a Gram negative cell structure play in motility?
A highconcentration of protons is maintained where in the prokaryoticcell and why?
| In the periplasm where protonscan cross the cell membrane (in response to a proton gradient) andenter the cell's cytoplasm |
| Outside of the outer membranein order to establish a high to low concentration with the cell'speriplasm where ATP is made |
| In the cytoplasm to be able tosupport ATP production by the mitochondria |
| In the cell wall to facilitateactive nutrient transport across the wall |
For each of thefollowing pairs, predict whether you would expect them to co-occurin the same cell at the same time or not. Explain youranswer.
Gas vesicles andglycocalyx
Storage polymersand glycocalyx
Sex pilus and gasvesicles
