What is it hypothesized that the earliest known
cells used for producing energy?
a. iron oxide
b. oxygen gas
c. carbon dioxide
d. water vapor
e. iron sulfide
E
Biology & Microbiology
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What molecule is responsible for carrying the acetyl group from pyruvate into the citric acid cycle?
a. NADH b. FADH2 c. ATP d. CoA e. oxaloacetate
Biology & Microbiology
________ ________ includes the Krebs cycle and electron transport.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The principle that states that different homologous chromosomes travel randomly to different ends of the cell is ________
Fill in the blank(s) with correct word
Biology & Microbiology
What is the inorganic soil constituent with the finest particles?
a. clay b. gravel c. humus d. sand e. silt
Biology & Microbiology