ATP drives work in cells by _________.
A. diffusing from areas of high concentration to low concentration
B. transferring adenosine to other cell molecules
C. generating heat
D. transferring its phosphate group to other cell molecules
D. transferring its phosphate group to other cell molecules
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Some ________ influence histone modification reactions.
A) microRNAs B) histones C) p53 genes D) scaffolding proteins E) tumor suppressors
Which of the following describes the function of veins in the body?
a. They are the sites for the exchange of nutrients, waste, and oxygen with tissues at the cellular level. b. They bring blood high in oxygen from the lungs to the rest of the body. c. They pump blood to the lungs for reoxygenation. d. They bring blood high in carbon dioxide back to the heart.
Which of the following is true concerning
white muscle fibers and red muscle fibers?
a. white muscle fibers have more mitochondria b. red muscle fibers have no myoglobin c. white muscle fibers make ATP by aerobic respiration d. red muscle fibers fatigue less easily e. red muscle fibers get most of their ATP thanks to creatine phosphate
The human reproductive system is regulated by
A. restriction enzymes B. antigens C. complexcarbohydrates D. hormones