Biochemistry

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Biochemistry Final Exam(Study for the Biochemistry Final All quizzes and tests given and answers to final

Amino acid metabolism is a complex and essential process in the human body that involves the interconversion of amino acids for various physiological functions. Amino acids serve as the building blocks of proteins, neurotransmitters, and other important molecules. Through processes like transamination and deamination, amino acids can be modified to produce energy, synthesize new proteins, or generate other important compounds. The liver plays a central role in amino acid metabolism by regula...

What was originally considered to be the genetic material? Why? Correct Answer-Proteins were considered to be the genetic material because they were inherently more complex than DNA. Avery, McCarty, MacLeod experiment Correct Answer-First, think about Griffith's experiment and how even heat killed strains of S. pneumococcus still led to death of non pathogenic cells ⁃ Process: Grind up virulent cells, isolate the active genetic material ('transforming principle') and infuse it into non...

QUIZ 3 Correct Answer--------- Which of the following statements are FALSE? Mark all that apply. 1. A knockout mouse is constructed by injecting a sample of recombinant DNA into a fertilized mouse embryo. Injected DNA is then randomly incorporated into the mouse's genome. 2. miRNAs hybridize perfectly with target mRNAs. 3. In RNAi, if a perfectly complementary 21-nt mRNA is found, Dicer will cleave the mRNA, which knocks down target gene expression. 4. Diploid yeast cells can be ...

Resolution Correct Answer-small dist b/t 2 pts can be distinguished; D = .61λ/Nsinα, want lower D; Light microscope 200nM Bright field microscopy Correct Answer-normal light type Phase-contrast Correct Answer-altered phase interference of unobstructed light; looks like cells are surrounded by light DIC Correct Answer-3D looking cells Confocal Correct Answer-3D imaging with fluorescence, progessively capture full surface in focus by removing out of focus; normal point-scanning vs....

R1-R2C=NH Correct Answer-imine RO-CO-CH3 Correct Answer-acetyl R-SH Correct Answer-sulfhydryl/thiol R-CO-SR Correct Answer-thioester RO-PO2-OH Correct Answer-phosphoryl hydrogen bond Correct Answer-an electrostatic attraction between the O of one molecule and the H of another H must be bonded to F,O,N H bond acceptor Correct Answer-a LP on an electronegative atom H bond donor Correct Answer-an H bonded to F,O,N amphipathic molecule Correct