Biology, 05.05.2020 22:45 24wilsleaann
It is proposed that the periplasmic space of gram-negative bacteria is iso-osmotic relative to the cytosol. If true, this poses a challenge for these cells when having to deal with turgor pressure. For example, it is generally believed that the rigid periplasmic peptidoglycan layer of these cells could resist the force of turgor pressure if it were exerted outward across the inner plasma membrane; thus, preventing plasma membrane lysis. However, if the periplasm is iso-osmotic with the cytosol, as proposed, the outer membrane must be under stress from the outward force of turgor pressure. Given that it is not thought that the outer membrane is built to withstand high turgor pressure, propose a plausible mechanism for how these cells resist lysis of the outer membrane in the face of high, outward turgor pressure force.
Answers: 2
Biology, 22.06.2019 02:00, gabe3636
Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.
Answers: 1
Biology, 22.06.2019 20:00, preciosakassidy
Name the tissue types that form the wall of each organ in questions 7-10
Answers: 3
It is proposed that the periplasmic space of gram-negative bacteria is iso-osmotic relative to the c...
Mathematics, 05.05.2020 08:36
Mathematics, 05.05.2020 08:36
Biology, 05.05.2020 08:36