Which of the following statements regarding the chemical grooming of pyruvate is false?
A) Two molecules of pyruvate are each converted into two-carbon molecules joined to a coenzyme A molecule.
B) Each pyruvate loses a carbon atom, which is released as CO2.
C) Two pyruvate molecules together contain less chemical energy than was found in the original glucose molecule.
D) Each pyruvate molecule has a CO2 added and then joins with an NADH.
Answer: D
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a. true b. false
What are possible benefits to an animal of defending a territory? Check all that apply.
_____ access to mates _____ optimal nesting/breeding sites _____ decreased foraging time _____ increased intraspecific competition _____ increased food resources
Check all of the mutually beneficial relationships between prokaryotes and eukaryotes.
A. Nitrogen-fixing bacteria live in plant root nodules. B. Agrobacterium tumefaciens bacteria that form galls in some plants. C. The human microbiome aids in human health. D. Prokaryotes aid in digestion in ruminants.
Which of the following relationships best depicts the amount of carbon stored in the atmosphere, sedimentary rocks, living organisms, and soil?
A. soil < the atmosphere < sedimentary rocks < living organisms B. the atmosphere < soil < living organisms < sedimentary rocks C. sedimentary rocks < soil < living organisms < the atmosphere D. soil < living organisms < sedimentary rocks < the atmosphere E. living organisms < the atmosphere < soil < sedimentary rocks