Exam 3 In-class review Flashcards
A chemical reaction that has a negative delta G?
Is an energy yielding reaction
Which of these is the most widely used form of energy in cell processes?
ATP
Oxidative phosphorylation (electron transport chain) uses all the following for energy production except:
Phosphoenolpyruvate
How many net molecules of ATP are produced during the Embden-Meyerhof pathway of glycolysis for every molecule of glucose that is converted into molecules of pyruvate?
2
Microorganisms that rely solely on fermentation reactions for energy production make ATP primarily by this method
Substrate level phosphorylation
When considering biogeochemical cycles, the earth is divided into these four major reservoirs?
Atmosphere, terrestrial, biological, and aquatic
Why is carbon dioxide considered a greenhouse gas?
It absorbs heat attempting to escape the atmosphere
The main primary producers in aquatic environments are ______ while in terrestrial environments the main primary producers are _______
Microbes; plants
Which is the major nitrogen reservoir on Earth?
atmosphere
The chemoautotrophic process that results in the oxidation of ammonia to nitrite is called?
Nitrification
Which of these regulates the formation of biofilms?
Quorum sensing
Which of these represents MOST of the oceans biomass?
microbes
Which of these characterizes dead zones in the ocean?
Being hypoxic
The coastal marine waters contain on average about ________ microbial cells per ml.
100 million (10^8)
Soil microbes surrounding the plant root contribute to plant growth by providing the pants with all the following except?
A usable carbon source
