Biology, 21.01.2020 18:31 alexbanda996
Which of the following statements about transmembrane proteins is correct?
a. the signal sequences are always cleaved off.
b. they are always inserted with the amino terminus on the lumenal side and the carboxyl terminus in the cytosol.
c. they cross the membrane only once.
d. they usually have one or more î± helices spanning the membrane bilayer.
Answers: 3
Biology, 22.06.2019 00:40
Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation
Answers: 1
Biology, 22.06.2019 04:30
African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.
Answers: 2
Which of the following statements about transmembrane proteins is correct?
a. the signa...
a. the signa...
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