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Chapter 1 Topics
Learning objectives from chapter 1
18
Biology
Undergraduate 4
02/22/2012

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Term
Describe the evolutionary model.
Definition
inheritence, variation, selection
Term
What are the three domains of life?
Definition
Archae, Bacteria, Eucaria
Term
What are Archae?
Definition
Single celled micro organisms
Term
What are bacteria?
Definition
Unicellular microoganisms; lack organelles, lack organiced nucleus, complex cell wall, circular DNA
Term
What are Eucaria?
Definition
complex cell structures; enclosed membranes, simple cell wall if present, linear chromosomes
Term
What is ATP?
Definition
component of RNA that supplies energy, regulates protein activity, links catabolic and anabolic pathways through the transfer of phosphate
Term
What is ADP?
Definition
created when energy is released from ATP, consuming food creates ATP
Term
What is the Central Dogma of Molecular Biology?
Definition
DNA replication occurs in the nucleus, transcription is a process by DNA that creates RNA, translation is a process by RNA to develop proteins
Term
Describe the structure of DNA.
Definition
linear polymer of four different bases, double helix, 5' to 3' (head to tail), antiparallel, Cytosine, Adenine, Guanine, Thymine
Term
Describe the structure of RNA.
Definition
single stranded of four bases, Cytosine, Adenine, Guanine, Uracil instead of Thymine
Term
What are the single code base pairs of a DNA strand?
Definition
AT and GC
Term
What are the single code base pairs when transcripting DNA to RNA?
Definition
AU and GC
Term
What is the function of tRNA?
Definition
Translate codons into amino acids
Term
Describe the basic structure of an amino acid.
Definition
A carbon with a carboxilic group and an amino group, along with a sidechain that varies
Term
What is the 1' structure of proteins?
Definition
the amino acid sequence
Term
What is the 2' structure of proteins?
Definition
repeating structures of the polypeptide chain (a-helix, b-sheet)
Term
What is the 3' structure of proteins?
Definition
packing of a-helices and b-sheets into a single polypeptide against each other
Term
What is the 4' structure of proteins?
Definition
packing of multiple polypeptides together
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