In the lining of your stomach, ATP is hydrolyzed to ADP and phosphate ion by a transporter, releasing energy that is used to pump protons (H ) from interstitial fluid into the stomach lumen. We learned that energy can make a mass accelerate over a distance. What is the mass and what is the distance in the H transport system?

Many birth-control pills release a constant amount of synthetic estradiols and progesterone for 21 days, followed by 7 days when no hormones are ingested. which of the following statements most accurately describes the effects of birth-control pills? -birth-control pills maintain constant levels of estrogens and/or progesterone so there is no surge in lh and ovulation does not occur.-birth-control pills inhibit the development of the uterine lining so implantation of a fertilized oocyte cannot occur.-birth-control pills maintain constant levels of estrogens and/or progesterones and mask the release of the oocyte from the follicle.-the 7 days with no hormones does not allow a thick enough uterine lining to form so a fertilized oocyte cannot implant.