Van der waals interaction - Study guides, Class notes & Summaries

BCH4024 TEST 1 QUESTIONS WITH COMPLETE SOLUTIONS diffusion-limited process: - Answer-reaction rate is determined by how fast reactants collide the Protonation and deprotonation of macromolecules? - Answer-acid/base groups on surface react immediately acid/base groups deep inside may never ionize hydrogen bonds of buried helices and beta-sheets require the "conformation breathing" -local unfolding Pepsin - Answer-a digestive enzyme secreted into gastric juice, having a pH of 1.5 a...

Honors Chemistry Unit 11 - Intermolecular Forces with Verified Solutions What is the term for the type of intermolecular force that occurs between molecules with polar bonds but no overall molecular dipole? Dipole-Induced Dipole Forces What is the name of the property that describes the resistance of a liquid to flow, which is influenced by intermolecular forces? Viscosity What is the term for the ability of a liquid to rise in a narrow tube against gravity, due to adhesive a...

Many types of non-covalent interactions are electrostatic in nature; one notable exception is A) Hydrogen bond C) Ionic interaction B) Van der Waals interaction D) Hydrophobic interaction - Answer-D 2. Maintaining correct pH is very important for living systems. Which of the following molecules is important for pH control in living systems? A) Proteins, especially those with high content of histidine residues B) Dihydrogen phosphate and hydrogen phosphate C) Bicarbonate D) All of t...

The dipole moment in a water molecule Which statement about hydrogen bonds is NOT true? A) Hydrogen bonds account for the anomalously high boiling point of water. B) In liquid water, the average water molecule forms hydrogen bonds with three to four other water molecules. C) Individual hydrogen bonds are much weaker than covalent bonds. D) Individual hydrogen bonds in liquid water exist for many seconds and sometimes for minutes. E) The strength of a hydrogen bond depends on the linearit...

Electronegativity is larger/smaller with a greater number of electron shells. - correct answer smaller Electronegativity is larger/smaller with a greater proton number in a given period (horizontal row). - correct answer larger What is wrong, if anything, with the following statement: "When NaCl is dissolved in water, the water molecules closest to the ions will tend to preferentially orient themselves so that their oxygen atoms can interact electrostatically with the chloride ions...

Gene expression the process by which information encoded in DNA directs the synthesis of proteins or; in some case, RNAs that are not translated into proteins and instead functions as RNAs Ionic bonds Bonds that require donating and accepting electrons Emergent properties Properties of a complex system that are not present within its parts but that emerge only when those parts are combined. Natural selection A process in which individuals that have certain inherited traits tend to survive...

Helix Prep Exam I Questions & Answers 2024/2025 C - ANSWERSWhat did Watson and Crick suggest to be significant about the base pairing found in the helix? A) It allowed the DNA to twist in a helix. B) The DNA could be circular. C) It was a mechanism for copying. D) All of the above. E) None of the above. D - ANSWERSWhich one of the following is not a required element in (known) organisms? A) Carbon B) Molybdenum C) Iodine D) Scandium E) Selenium A - ANSWERSA typical van der W...

TEST BANK: LEHNINGER PRINCIPLES OF BIOCHEMISTRY, 7TH EDITION, DAVID L. NELSON CHAPTERS 1-28 EXAM QUESTIONS AND COMPLETE 100% CORRECT VERIFIED ANSWERS WITH RATIONALES WELL EXPLAINED BY EXPERTS AND GRADED A+ LATEST UPDATE 2024 WITH 100% GUARANTEED SUCCESS AFTER DOWNLOAD .ALREADY PASSED!!!!!!9ALL YOU NEED TO PASS YOUR EXAMS) Which list has the cellular components arranged in order of INCREASING size? amino acid < protein < mitochondrion < ribosome amino acid < protein < rib...

types of lipids (purpose) correct answer: storage, structural, and signalling fatty acid chemical structure and charge correct answer: - fatty part is the carbon chain - acid part is carboxyl group (-COOH) - negatively charged which conformations of saturated fatty acids are most stable? correct answer: - anti conformation - extended conformation unsaturated fatty acids correct answer: double bonds are almost always in cis conformation which results in kinks in structure mono-...

1. When two atoms are equally electronegative, they might interact directly to form A. equal numbers of isotopes. B. ions. C. polar covalent bonds. D. non- polar covalent bonds. E. hydrogen bonds. - D 2. Which of the following is not considered to be a weak molecular interaction? A. van der Waals interaction B. ionic bond in the presence of water C. hydrogen bond D. covalent bond - D 3. Which type of interaction stabilizes the alpha-helical structure of proteins? A. hydrophobic i...