Van der waals - Study guides, Class notes & Summaries

Bios 1300 Cumulative Final UPDATED Exam Questions and CORRECT Answers Which of the following bond types is the weakest? Isotopic bonds Van der Waals forces Hydrogen bonds Ionic bonds Nonpolar covalent bonds Polar covalent bonds - Correct Answer- Van der Waals forces

Biology 213 Exam 1 Review Chapters 1-3 Questions and Answers Already Passed ___________ is the strongest bond/interaction? a) Ionic bond b) Van der Waals interactions c) Covalent bond d) Hydrogen bond e) Hydrophobic interactions c) Covalent bond strongest - Covalent - Ionic - Hydrogen - Hydrophobic weaker - Van der Waals A key point in Darwin's explanation of evolution is that a) All mutations that occur are those that will help future generations fit more successfully ...

USABO semi-final part A&B Questions and Answers 100% Correct. 1) The recent SARS virus is a: a) Lentivirus b) Coronavirus c) Egtved virus d) Baculovirus e) Retrovirus 2) Which of the following cell organelles is typically identified by its sedimentation coefficient? a) Golgi apparatus b) Mitochondria c) Nucleus d) Nucleolus e) Ribosome 3) Timber companies plant trees right after clear-cutting. Which of the following ecological and/or evolutionary processes would, in principle, take...

Polysaccharides (saccharides are carbohydrates) correct answers Polymer of monosaccharides Peptide bond correct answers Bond between amino acid residues to form a polypeptide chain. (Amide linkage) Phosphodiester bond correct answers Bond that connects nucleotides together to form nucleic acids Glycosidic bond correct answers Any bond that links a sugar to something else Hydrogen bond donor correct answers A hydrogen bonded to an electronegative atom Hydrogen bond acceptor correct...

Valence Ans- number of e- in outermost shell, determines number of bonds the atom can form 4 types of bonds Ans- covalent, ionic, hydrogen, van der waals Hydrogen bonding Ans- electrostatic attraction between partially positive hydrogen atom and a partially negative, highly electronegative atom van der Waals forces Ans- weak attractive/repulsive forces resulting from the movement of electrons, creating temporary regions of partial pos. and neg. charge if difference in EN between to...

Typical Van der Waals energies are about: correct answers 2-4 kJ/mol A possible drug to treat COVID-19 has been discovered and is known to be a weak acid. At the pH of blood (7.4) the concentrations of acid and conjugate base are 0.075 and 0.025 respectively. What is its pKa? correct answers 3.00 What is the [A-]/[HA] ratio whent he weak acid is in solution alone pH unit above its pKa? correct answers 10:1 What are the primary chemical components present in a phosphate buffer at pH 7.4?...

T or F: A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. W/o more information, we cannot make a determination on either the value of the Keq constant or the positive or negative value of the DeltaG of the reaction Correct Answer-False T or F: Due to its small size, the amino acid glycine can be found in tight turns in a protein structure Correct Answer-True T or F: The Delta G of a reaction is defined as the energy requir...

BCH 451 Final Exam UPDATED ACTUAL Questions and CORRECT Answers van der Waals interaction interatomic distances electron charge solution dielectric free energies - CORRECT ANSWER- the ___ describes the relation between ___, ___, ___ and ___ quaternary structure

BCH 451 Final Exam ACTUAL Questions and CORRECT Answers van der waals interaction - CORRECT ANSWER- The () describes the relation between inter atomic distances, electronic charge, solution dielectric and free energy. Quaternary structure - CORRECT ANSWER- Protein () defines the relation among subunits in a multisubunit lattice primary structure - CORRECT ANSWER- Protein () defines the amino acid sequence tertiary structure - CORRECT ANSWER- Protein () defines the packing of helices, ...

Which of the following bond types is the weakest? Isotopic bonds Van der Waals forces Hydrogen bonds Ionic bonds Nonpolar covalent bonds Polar covalent bonds - Van der Waals forces The lower the pH of a solution, the ________. lower the H+ concentration more neutral the solution is greater the number of oxygen atoms greater the number of H+ in solution less toxic the solution is - greater the number of H+ in solution Which functional group is made of one N atom and two H atoms? pho...