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biology 105 syllabus
Biology of Exercise
Quiz 2, part 4 Answers
Define the following terms or phrases in one or two sentences (no more!). (3 points each, 12 total)
1. Gene expression
Gene expression is the process by which genes encoded within DNA are converted to the functionally active molecules, proteins. This process involves transcription (a section DNA is copied into an RNA molecule), processing of RNA into mRNA (introns are removed), and translation (protein is synthesized from the mRNA template).
2. General adaptation syndrome
The general adaptation syndrome is an idea developed by Hans Seyle about how the body responds to stress. He said the the body first has an alarm reaction, followed by a resistance phase in which our ability to respond to the stress improves, followed by an exhaustion phase in which the stress overcomes our ability to respond.
3. Triplet code
A triplet code is a sequence of three nucleotide molecules in DNA or RNA that specifies a particular amino acid.
4. Glycogenesis
Glycogenesis is the linkage of glucose molecules into the storage molecule
glycogen by a condensation reaction in which a water molecule is removed.
It occurs mainly in the liver and skeletal muscle.