Most of the atmospheric oxygen occurs as a result of photosynthesis. From which of the following molecules is the oxygen derived?
A. NADH
B. glucose
C. carbon dioxide
D. chlorophyll
E. water
Answer: E
Biology & Microbiology
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Bacteriophage T4 blocks transcription of host genes using an enzyme that transfers an ________ from NAD onto the alpha subunit of RNA polymerase.
What will be an ideal response?
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Algal blooms often occur when which nutrients accumulate in the water?
A) Mercury and sulfur B) Potassium and sodium C) Copper and iron D) Phosphorous and nitrogen
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When an organism moves from sun to shade, it reduces heating by conduction.
a. true b. false
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