Glycolysis generates more stored energy than it expends. What is the net number of activated carrier molecules produced in this process (number and type of molecules produced minus the number of those molecules used as input)?
(a) 6 ATP, 2 NADH
(b) 4 ATP, 4 NADH
(c) 2 ATP, 2 NADH
(d) 4 ATP, 2 NADH
(c) Although 4 ATP and 2 NADH are produced, 2 ATP are converted to ADP in the early steps of glycolysis. In contrast, NADH is not converted to NAD+ in any of the reactions.
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Each nucleosome contains:
A. four proteins: H2A, H2B, H3, and H4 B. a histone octamer composed of two copies of each of the following proteins: H1, H2, H3, and H4 C. a histone octamer composed of two copies of each of the following proteins: H2A, H2B, H3, and H4 D. four proteins: SMC1, SMC2, SMC3, and SMC4 E. a mixture of histone and SMC proteins.
Plants are dependent on microorganisms for
A. providing oxygen. B. providing water. C. changing atmospheric nitrogen to a usable form. D. providing carbohydrates.
What qualities would you expect to observe in this lake?
1.lots of nutrients
2.more phytoplankton than algae
3.high biomass in the profundal zone
4.lots of oxygen at all levels
Which of the following carbohydrate is seen only in animals?
a. starch b. cellulose c. glycogen