The plasma membrane of a muscle fiber is called the sarcolemma
____________________ Indicate whether the statement is true or false.
T
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Protocells likely grew within microscopic compartments in porous alkaline vent chimneys, where ____
a. protocells could use the energy provided by H+ gradients b. the vents offered physical protection c. protocells could use readily available ammonia sources d. the vents funneled geothermal warmth e. the vents were the right size
Erwin Chargaff discovered that DNA contains equal numbers of adenine and thymine bases and equal numbers of cytosine and guanine bases. Which hypothesis would this have most likely led to?
A.) DNA might be in the form of a helix. B.) There might be some kind of symmetry in the DNA molecule. C.) DNA is not the only molecule involved in the passing on of hereditary traits. D.) Guanine and cytosine have very different structures than adenine and thymine.
In the mitochondria NADH and QH2 are essentially oxidized by ________ since it is the terminal electron acceptor.
A) carbon dioxide B) hydrogen peroxide C) ozone D) oxygen
C4
What will be an ideal response?