What % of carbon dioxide will be dissolved in the plasma?
a. 10%
b. 25%
c. 80%
d. 55%
e. 30%
a
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Recently a methanotrophic proteobacterium was reported that oxidizes methane in anoxic environments by coupling methanotrophy with nitrite reduction, known as ________. In this process of reducing nitrite (NO2-) to nitrogen gas (N2), molecular oxygen is released within the microbe, which it harnesses for methane oxidation.
Fill in the blank(s) with the appropriate word(s).
What type of organisms can generate organic molecules and obtain energy from inorganic molecules like iron, sulfur, and hydrogen?
a. chemoautotrophs b. photoautotrophs c. heterotrophs d. homotrophs e. organotrophs
Which of the following molecules is part of the photosynthetic electron-transport chain between photosystems I and II? Select all correct choices
A. plastocyanin B. plastoquinone C. cytochrome b6f complex
When a root is placed on its side, what happens to the amyloplasts in the root cap cells?
a. They move to the top. b. They settle on the bottom. c. They are digested by amylase. d. They move into the root apical meristem. e. They move into a root hair.