Catalysis - Study guides, Class notes & Summaries

Objective: To examine the use of a phase transfer catalyst to effect an SN2 reaction in dichloromethane solution. The reaction will be conducted without extraction for product isolation. List the procedural steps, from start to finish, that are required to convert 2-naphthol and allyl bromide into allyl 2-naphthyl ether. - The reaction is performed on a small scale by mixing the alcohol, the haloalkane, and the phase transfer catalyst in a conical vial. Sodium hydoxide (base) is added to ini...

All biomolecules can be divided into just ________ main categories Correct Answer-four Over _______ of the human body is made up of H, O, C, and N Correct Answer-99% Proteins Structure Correct Answer-linear polymer that folds into 3D structure Monomers of proteins Correct Answer-Amino Acids Polymer bonds in protein Correct Answer-Peptide bond Major functions of proteins Correct Answer-Signals, receptors, strucutre, mobility, defense, catalysis, etc. Nucleic acids structure Corr...

Compared to Eukaryotes, Bacteria and Archaea have ________ surface-to-volume ratios, causing ________ nutrient exchange and growth rates. A. Lower, slower B. Lower, faster C. Higher, slower D. Higher faster Correct Answer-D. Higher, faster Dr. Strummer prepares a Gram stain of a bacterial soil sample. Which of the following microscopy techniques is most appropriate for viewing his sample: A. Surface electron microscopy B. Brightfield Microcopy C. Fluorescent electron microscopy D. Tra...

What does a vector measure? correct answers magnitude/size and direction What do scalars measure? correct answers Magnitude/size What is distance? correct answers how far something has traveled What is speed? correct answers how fast something is going What is velocity? correct answers how fast something is going in a certain direction (Displacement/time) What is a vector sum? correct answers addition if vectors together What is the rate of speed? correct answers distance over ...

A complex organic molecule that is necessary for enzyme function but is NOT permanently associated with the enzyme is a: A) prosthetic group. B) cofactor. C) holofactor. D) coenzyme. E) metal ion. - D) coenzyme. A double-reciprocal plot of 1/V0 versus 1/[S] for an enzyme in the presence of increasing concentrations of an uncompetitive inhibitor will have lines corresponding to the different inhibitor concentrations that are BEST described by which statement? A) The lines will intersect...

BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 UpdatePortage Learning BIOD 171 Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update True or False: A virus is considered a microorganism. False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 1. What is the smallest biological unit of life? A cell. ...

Biochemistry Murphy 301 CH 1-8 | Verified Questions And Answers | 100% Correct Quizzes The side chain of histidine has a typical pKa value in the range of 6.5-7.4. However, when analyzing the pKa values in a particular protein, scientists determined that one particular His residue has an unusually low pKa value of 4.8. Which of the following statements correctly explain this anomaly? 1) The microenvironment around a residue can impact its pKa value. 2) A positively charged amino acid must...

UNE BIOCHEMISTRY MIDTERM EXAM /LATEST UPDATE ACTUAL EXAM WITH CORRECT DETAILED AND VERIFIED ANSWERS/A+ GRADE How do most enzymes reduce the activation energy needed to move a reaction forward? Providing an active site most complementary the transition state An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent catalysis. Which of the following is likely to result as a consequence of this mutation? The enzyme will not be able to form the transition state com...

UNE Biochem 1005 Final Study Set Exam Questions And Answers All Verified Which of the following best describes the structure of heme? -a nicotinamide structure that is readily oxidized -a negatively charged phosphate group -a planar porphyrin ring that binds iron -an n-linked glycosylation A planar porphyrin ring that binds iron Covalent catalysis is used by many enzymes to cleave peptide bonds. Which of the following amino acids would not facilitate this type of catalysis? -val...

1. How could you test to see if an enzyme was completely depleted during an experiment? By increasing the amount of saturation, if the amount of reaction does not change then that means the enzyme was completely saturated. 2. Describe an experiment that could test the hypothesis that an enzyme binds to a substrate when it acts. An experiment to test an enzyme binding to the substrate to convert into a product could be: Starch -- amylase -- Maltose + Maltose. Amylase is an enzylme tha...