The metabolic process ____________________ converts pyruvate to lactic acid. Fill in the blank(s) with the appropriate word(s)
ANSWER: lactate fermentation
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How is an open reading frame (ORF) identified and used to determine the sequence of amino acids in the gene it encodes for?
What will be an ideal response?
With __________ growth, a small population starts growing slowly, then grows rapidly, and then
levels off once __________ is reached. Fill in the blank(s) with the appropriate word(s).
Correct and appropriate signal transduction processes are generally under strong selective pressure and are determined by the properties of the molecules involved, the concentrations of signal and receptor molecules, and the binding affinities
between signal and receptor. Therefore, a hormone action is very specific in a species at any one point in time. However, there are examples of very diverse functions of a specific hormone between groups of organisms. For example, thyroxin, which is produced in all vertebrates and many invertebrates, can trigger growth, differentiation, metamorphosis, maturation, reproduction, behavior, temperature tolerance, osmoregulation, or seasonal adaptation depending on the organism in which it is produced. What is the most logical explanation for such different responses triggered by thyroxin in organisms? A) The concentration of thyroxin varies in different organisms. Invertebrate organisms do not have as much thyroxin as vertebrate organisms. B) Thyroxin and its receptor molecules have a different binding affinity in different organisms. C) Receptor molecules for thyroxin are located on different tissues in different organisms. D) The structure of thyroxin is substantially different in different organisms.
Which of the following accumulates sulfur granules inside the cell?
A. Green sulfur bacteria B. Cyanobacteria C. Purple sulfur bacteria D. None of the choices are correct.