Bio 272 Exam 1 Questions with correct
Answers
Characteristics of living things - Correct Answers -Utilize energy and matter, ordered
structures, homeostasis, stimulus response, reproduction, growth
Cell theory key advances - Correct Answers -Development of microscopes to see cells,
living things influencing the environment may be too small to see with the naked eye, all
cells are derived from existing cells
Central dogma - Correct Answers -DNA transcribed to RNA, RNA translated to protein
Prokaryotes types - Correct Answers -bacteria, archae, cyanobacteria
Prokaryotes size - Correct Answers -1-10 micrometers
Peptide bonds - Correct Answers -planar, alpha carbon bonds are fixed, other atoms
and R-groups can rotate
Protein shape - Correct Answers -Determined by electrostatic interactions, hydrogen
bonds, van der Waals (all non-covalent bonds) between AA sidechains
Higher order protein interactions - Correct Answers -Proteins with 2+ interaction
domains can form helices, rings, filaments, tubes and spheres
Cysteines - Correct Answers -Covalent disulfide bridges sometimes form, extracellular
proteins in acidic oxidizing environment
In vitro folding - Correct Answers -Protein can refold after denaturing from urea, in low
concentration, single species, low temperature
Prokaryotes organelles - Correct Answers -Few or none
Prokaryotes genome - Correct Answers -Circular DNA in cytoplasm
Prokaryotes RNA and protein - Correct Answers -both in cytoplasm
Prokaryotes cytoplasm - Correct Answers -Simple cytoskeleton, no endo/exocytosis
Answers
Characteristics of living things - Correct Answers -Utilize energy and matter, ordered
structures, homeostasis, stimulus response, reproduction, growth
Cell theory key advances - Correct Answers -Development of microscopes to see cells,
living things influencing the environment may be too small to see with the naked eye, all
cells are derived from existing cells
Central dogma - Correct Answers -DNA transcribed to RNA, RNA translated to protein
Prokaryotes types - Correct Answers -bacteria, archae, cyanobacteria
Prokaryotes size - Correct Answers -1-10 micrometers
Peptide bonds - Correct Answers -planar, alpha carbon bonds are fixed, other atoms
and R-groups can rotate
Protein shape - Correct Answers -Determined by electrostatic interactions, hydrogen
bonds, van der Waals (all non-covalent bonds) between AA sidechains
Higher order protein interactions - Correct Answers -Proteins with 2+ interaction
domains can form helices, rings, filaments, tubes and spheres
Cysteines - Correct Answers -Covalent disulfide bridges sometimes form, extracellular
proteins in acidic oxidizing environment
In vitro folding - Correct Answers -Protein can refold after denaturing from urea, in low
concentration, single species, low temperature
Prokaryotes organelles - Correct Answers -Few or none
Prokaryotes genome - Correct Answers -Circular DNA in cytoplasm
Prokaryotes RNA and protein - Correct Answers -both in cytoplasm
Prokaryotes cytoplasm - Correct Answers -Simple cytoskeleton, no endo/exocytosis
