Pka Study guides, Class notes & Summaries

Portage Learning CHEM 210 Module 2 Exam Questions With Answers Latest Updated (Graded A+) Which attribute contributes to water’s unusual properties? The geometry of the molecule The polarity of the O-H bonds Question 3 The ability of water molecules to hydrogen bond The bond angle of water All of the answers are correct Question 4 What factor contributes to the bent shape of a water molecule? The dipole arrows in a water molecule The unshared electron pairs on the oxygen atom The e...

Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. What are proteins made from? -Answer- amino acids What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, defense, contractile Which isomer of carbohydrates is used in animals? -Answer- D What are DNA and RNA made of? -Answer- nucleic acids All lipids are formed from... -Answer- acetyl Co-A Complex lipids -Answer- phospholipids and glycolipids Simple lipids -Answer- triglycerides functions ...

CMMB 403 Midterm 1 Question and answers 100% correct CMMB 403 Midterm 1 Describe the RTK signal transduction pathway when activated by the FGF ligand FGF ligand dimerizes RTK receptor. Receptor is phorphorylated and attracts adaptor/GEF. GEF begins phosphorylation cascade: GEF to Ras to Raf to Mek to Erk to TF. TF transcribes gene Describe the JAK-STAT pathway when activated by FGF FGF ligand dimerizes RTK. JAK2 proteins cross-phosphorylate. Both JAK2s phosphorylate a STAT5 (which is...

Electronegativity of water correct answers The different electronegativities of hydrogen and oxygen make water a polar molecule capable of forming hydrogen bonds. This makes water a good solute. Hydrophobic interactions correct answers Non-polar hydrophobic compounds dissolve poorly in water. These compounds minimize their surface area exposed to water by forming aggregates in which the hydrophobic groups go to the interior through hydrophobic interactions. Only the more polar portions intera...

PeptideT or F? Peptide bonds behave as rigid planes because of partial double-bond character between the carbonyl carbon of one residue and the amide hydrogen of another residue. Correct Answer-FAlSE! B/C Hydrogen can't have a double bond, but if it stayed nitrogen it would be true. T or F? The process by which hydrophobic molecules are driven together, therefore maximizing the entropy of water, is referred to as the Hydrophobic effect. Correct Answer-TRUE! The strong electronegativity is...

Acids and bases are usually demoted as strong or weak, what's the difference? - Answer-- Strong acids and bases - reaction with water is approximately 100% - Weak acids and bases - reaction with water is much less than 100% What does acid and base strength not dictate? - Answer-Acid or base strength is not a measure of concentration What are some examples of strong acids? - Answer-HNO3, HCl, H2SO4 and HClO4 are strong acids What are electrolytes and what's the connection to acids? - Ans...

Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. What are proteins made from? -Answer- amino acids What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, defense, contractile Which isomer of carbohydrates is used in animals? -Answer- D What are DNA and RNA made of? -Answer- nucleic acids All lipids are formed from... -Answer- acetyl Co-A Complex lipids -Answer- phospholipids and glycolipids Simple lipids -Answer- triglycerides functions ...

Pharmacologic behavior (AAPD QE Prep Dr. Nelson) Exam Questions With Verified Answers What was the chronology of anesthetic discovery (starting with cocaine till now)? - answer1) Cocaine (1885) 2) Procaine (1904) 3) Lidocaine (1943) 4) Articaine (2000) What Cranial nerve do we block most frequently in dentistry? what are its branches and functions? - answer1) Cranial Nerve (V); Trigeminal Nerve 2) 3 Branches: a) V1: Opthalmic branch b) V2: Maxillary branch (Superior alveolar, etc) c...

Pharmacologic behavior (AAPD QE Prep Dr. Nelson) Exam Questions With Verified Answers What was the chronology of anesthetic discovery (starting with cocaine till now)? - answer1) Cocaine (1885) 2) Procaine (1904) 3) Lidocaine (1943) 4) Articaine (2000) What Cranial nerve do we block most frequently in dentistry? what are its branches and functions? - answer1) Cranial Nerve (V); Trigeminal Nerve 2) 3 Branches: a) V1: Opthalmic branch b) V2: Maxillary branch (Superior alveolar, etc) c...

"Proton hopping" essentially means that: A) an individual proton "jumps" from one electronegative group to the next. B) a free proton moves from one hydroxyl group of ionized water to the next. C) several protons move between hydrogen bonded water molecules causing the net movement of a photon over a long distance in a short time. D) individual protons are freer to move among and between water molecules in solution. E) hydronium ions are freer to move among and between water molecules ...