Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP
Most of the energy from the original glucose molecule at that point in the process, however, is in the form of _____. A) acetyl-CoA
B) glucose
C) pyruvate
D) NADH
D
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Interpret the results to the following experiment
Transcriptional activity of chemotactic genes showed a high expression level during the following conditions: repelling away from compound 1, moving towards compound 2, and remaining sessile when presented compounds 3 and 4. A) Activity during movement in any direction led to high measurements observed, and the sessile population responded equally to both a chemoattractant and a chemorepellant but remained in the same location for their net movement. B) Gene expression by itself cannot distinguish between cells responding to both an attractant and repellent, so this ambiguity makes transcriptomics unfavorable but nonetheless indicates activity. C) The activity observed during a sessile existence suggests the molecular probe was targeting a chemotactic gene that is also involved in other non-chemotactic functions due to the activity observed. D) Transcriptomics as a whole cannot be used for chemotaxis genes because they are not regulated at the transcriptional level (i.e., they are constitutive), which is why activity is observed on all three conditions.
Reactions that remove the equivalent of a water molecule when subunits are joined to make a larger molecule are called
____ reactions.
a. equilibrium b. hydration c. hydrolysis d. redox e. dehydration synthesis
The portion of the nervous system that is responsible for both increasing heart rate and increasing movement of the
intestines is the ____.
a. peripheral nervous system b. sympathetic nervous system c. parasympathetic nervous system d. somatic nervous system e. interaction between the somatic and autonomic nervous systems
Which of the following is a true statement?
a. Flowers may have secondary growth. b. Secondary growth is a common feature of eudicot leaves. c. Secondary growth is produced by both the vascular cambium and the cork cambium. d. Primary growth and secondary growth alternate in the life cycle of a plant. e. Plants with secondary growth are typically the smallest ones in an ecosystem.