With each turn of the Krebs cycle, ____
a. the majority of ATP are produced
b. oxygen is produced
c. carbon dioxide is utilized
d. NADH and FADH2 are produced
e. pyruvate is produced
ANSWER: d
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You start to culture a petri dish of marine bacteria. Each day, the number of visible colonies growing on the agar surface increases in this fashion: 2, 4, 16, 32, 64, 128 . This growth pattern is best described as
a. logarithmic. b. logistic. c. exponential. d. quadratic.
Organisms require _____ and _____ to maintain themselves, grow, and reproduce
Fill in the blank(s) with correct word
The obvious advantage of the lactose operon is that it
a. allows bacteria to survive in the presence of lactose. b. eliminates the need for lactose-metabolizing enzymes when lactose is not present. c. enables bacteria to make lactose only in the presence of the proper enzymes. d. negates the need for milk in the diet of adult humans. e. enables glucose to substitute for lactose in the diet of lactose intolerant persons.
Spheroplasts, protoplasts, and mycoplasms are bacterial cells without cell walls
Indicate whether the statement is true or false