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Bio 212 Exam 1 Questions and Answers
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  • BIO 212
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  • BIO 212

Which of the following is the correct order of relative size from smallest to largest? A phospholipid, a messenger RNA, a virus, a prokaryotic cell How does one determine the number of covalent bonds an element will likely form? The number of Valence electrons What is the correct order of permeab...

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  • July 8, 2024
  • 3
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • bio 212 exam 1 questions and answers
  • which of the following is the correct order of rel
  • how does one determine the number of covalent bond

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  • BIO 212
  • BIO 212

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Bio 212 Exam 1 Questions and Answers Which of the following is the correct order of relative size from smallest to largest? ✅A phospholipid, a messenger RNA, a virus, a prokaryotic cell How does one determine the number of covalent bonds an element will likely form? ✅The number of Valence electrons What is the correct order of permeability from most to least permeable across a lipid bilayer that does not contain transport proteins? ✅CO2, Methanol (CH3OH), H2O, Cl - Which of the following is not a feature of the fluid mosaic modes? ✅Proteins that span the lipid bilayer are enriched for hydrophilic amino acids in the transmembrane regions An insect was exposed to a temp shift from 60 degrees to 80 degrees. Which types of cellular changes would be the most beneficial to help it cope with the temperature shift? ✅Decrease the number of double bonds in the fatty acyl tails of phospholipids The figure shows a solute molecule surrounded by a hydration shell of water molecule. This means the solute molecule is most likely? ✅Positively charged What properties make water and excellent solvent? ✅Polarity, molecular shape, hydrogen bonding What type of transport mechanism could be used to move a potassium ion (K+) across a membrane down a concentration gradient? ✅Facilitated diffusion If line B represents the curve from membrane permeability of a membrane enriched for phospholipids with unsaturated fatty acids, which curve would be the one for phospholipids with saturated fatty acids? ✅Line C When polymerization of a protein is complete but a protein has alpha helixes, beta -
pleated sheets, and random coils, what is the highest level of structure in the protein? ✅Secondary Structure What are the 3 main areas of study in Biology? ✅Archaea, Bacteria, and Eukaryotes Is DNA transported into the nucleus? ✅Yes, it is transported through a pore What does the smooth ER catalyze? ✅Lipids

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