Biology, 08.10.2019 21:00 tajajohn7597
The phosphate transport system in bacteria imports phosphate into the cell against the phosphate concentration gradient. the energy for phosphate import is provided by a ph gradient across the membrane (lower ph outside the cell than inside the cell), rather than by atp hydrolysis. the bacterial phosphate transport system is an example of what?
Answers: 3
Biology, 21.06.2019 23:00
What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid
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Biology, 22.06.2019 02:00
Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.
Answers: 2
Biology, 22.06.2019 05:00
What organ systems are working to you cool down after a workout?
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Biology, 22.06.2019 07:00
Why does miranda have that particular vision of dr hildesheim answer?
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The phosphate transport system in bacteria imports phosphate into the cell against the phosphate con...
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