Beta carbonyl Samenvattingen, Aantekeningen en Examens

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?...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

Physiological roles of carbohydrates correct answers -Sources of energy -Energy storage -Structural roles -Cellular interaction -Cellular identification -Information transfer (DNA & RNA) -Signaling Monosaccharide families correct answers -Carbohydrates have empirical formulas of (CH2O)N, where n>= 3 (usually 3-6) -Two major forms classes of carbohydrates; aldoses, and ketoses Aldoses correct answers -Which have aldehyde group Ketoses correct answers -Which have ketone groups ...

Cell Biology Macromolecules Questions and Answers Already Passed What are the four main macromolecules? Lipids, Proteins, Carbohydrates, and Nucleic Acids What three of the four main macromolecules are made from monomers? Proteins, Carbohydrates, and Nucleic Acids What is a dehydration reaction? It is when a water molecule is taken away, in order to form a new bond (synthesizing a polymer). What is hydrolysis? It is when a water molecule is added, in order to break a bond (breaking down a pol...

UNE BIOCHEM 1005 WEEK 1 QUESTIONS WITH CORRECT ANSWERS. What are the four different protein structures? 1. Primary 2. Secondary 3. Tertiary 4. Quaternary What is the primary structure of a protein? a linear sequence of amino acids in polypeptide chains which is written from the amino terminus (N-terminus) to the carboxyl terminus (C-terminus) What is the secondary structure made of? a-helix, b-sheets, and bends, turns, or loops How are alpha helices formed? They are formed when the ...

MCAT Exam Prep Questions and Answers Latest 2023/2024 | 100% Verified. How do beta particles behave in electric and magnetic fields? Beta decay releases electrons - negatively charged particles are deflected by electric and magnetic fields Does blood flow faster through capillaries or arteries? Why? Blood flows faster through arteries - capillaries have a greater NET cross-sectional area Which has higher BP: systemic or pulmonary circulation? Explain why. Systemic has a higher BP - pulmonar...

Biochemistry ACS Final Exam What is the D configuration of a sugar in a Fisher projection? - chyrol carbon furthest from the carboxyl group hydroxyl on right What is the L configuration of a sugar in a Fisher projection? - hydroxyl on left What is the difference between glycogen and amylopectin? - glycogen- has branches about every 10 residues (more highly branched) amylopectin- has branches about every 25 What is amylose made up of? - glucose What makes up starch? - amylose...

Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? - correct answer Proline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the affinity of hemoglobin for oxygen? a) decrease in proto...

Biology Unit 1 Test Questions and Answers Graded A+ scientific study of life Biology how singlecell develops into an organism, how the human mind works, and how living thing interact themes of biology a cell that is simple, smaller, and does not contain a nucleus or other membrane-enclosed organelles prokaryotic cell a cell that has a membrane-enclosed organelles, the largest which is the nucleus eukaryotic cell What is an example of a prokaryotic cell? Bacteria What is an example of a euka...

Carbohydrate correct answers Polyhydroxy aldehyde, ketone, or a compound that produces such substances upon hydrolysis Chiral Centre correct answers -C atom attached to 4 different groups (tetrahedral geometry) -A molecule with a chiral centre is said to be "chiral Enantiomers correct answers -Stereoisomers that are not superimposable mirror images of each other -The configurations at all chiral centres are exactly opposite -All chemical and physical properties are the same -Differ in...