What is the function of the protein channel where H+ ions escape into the matrix of the mitochondrion?
A) to add a phosphate to ADP
B) to remove a phosphate from ATP
C) to break the bonds of ATP
D) to create ADP from ATP
A
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A neutral solution has a pH of
(a) 3. (b) 5. (c) 7. (d) 9.
The genetic code is essentially the same for all organisms. Based on this information, one can logically assume which of the following statements to be correct?
a. A gene from an organism can theoretically be expressed by any other organism. b. All organisms have experienced convergent evolution. c. The same codons in different organisms translate into the different amino acids. d. DNA was the first genetic material. e. Different organisms have different numbers of different types of amino acids.
Which of the following statements is true about the phylogenetic tree shown here?
A. The gibbon is more closely related to the rhesus monkey than to the chimpanzee. B. The galago is more closely related to the green monkey than to the capuchin. C. The green monkey and rhesus monkey share a common ancestor with the gibbon and chimpanzee. D. The gibbon does not share a common ancestor with the chimpanzee or human. E. The green monkey and rhesus monkey share a more recent common ancestor than do the chimpanzee and human.
Exergonic reactions
a. are spontaneous b. have a negative delta G value c. release energy d. all of these are correct