BIO 201 Lecture 2: bio 201 lec 2
8 Aug 2016
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Bio 201-lec 1: nucleus- program stored on dna. Keep in good shape- keep dna in nucleus, copy to rna, Rna out of nucleus, rna attach to ribosomes, rougher to make proteins. Plasma membrane- is a selectively permiable phospholipid bilayer. Divides inside of cell from outside of cell. Keep things from moving across: diagram 2. 3: second picture- 2/3 cells mass is water, packed around other things. Crowded mechanism in first graph- sac held together by plasma membrane, organelles around in there. cell. Mostly water, all space isn"t taken up is water. Aqueous chemistry: fundamental theorem of molecular biology- program sits in cell. Inside, copy dna, and mess with dna (copy rna). Rna carries program into cytoplasm where it gets chewed up. Meets up with ribosomes (complicated) have enzymatic function to translate rna into amino acid sequence-- called transcription (process) transcribed rna translation *****5. most enzymes run by proteins.
