Which regulatory mechanism is activated when the overall energy availability of a cell is high?
A. Citrate inhibits phosphofructokinase 1.
B. ADP up-regulates phosphofructokinase 1.
C. ATP inhibits phosphofructokinase 1.
D. AMP up-regulates phosphofructokinase 1.
C
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Cancer is associated with problems related to the regulation of ________
A) mitosis B) meiosis I C) meiosis II D) cytokinesis
Muscle cells produce lactic acid when they have an inadequate supply of
A) protein.
B) O2.
C) calcium.
D) actin and myosin.
E) glycogen.
If you found a vertebrate skull in the woods and the teeth were sharp and scissor-like, what type of food would you expect this animal to eat?
A) grass B) flesh of another animal C) nectar D) blood
A hominid thought to have displayed facultative bipedalism
A) founder effect B) Homo Habilis C) Latin binomial D) Australopithecus Africanus E) convergent evolution F) Ardipithecus ramidus G) Neanderthals H) chimpanzees I) Homo erectus J) astragalus