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Biochemistry

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proteins often require ________ to help them fold
The Km of an enzyme for its substrate is defined the concentration of the substrate that is required to produce the _________ velocity of the enzyme1/maximalinitialhalf-maximalmaximal
Which of the following is not a macromolecule formed by polymerization of monomers?ProteinsLipidsDNAPolysaccharidesRNA
Which statement about the properties of enzymes is false?Enzymes are used over and over againEnzymes can be altered reversibly during a reaction.They do not determine whether a reaction is exergonic or endergonic.Enzymes do not alter the ΔG of a reaction.Enzymes are typically present in large amounts relative to substrates.
The two strands of dsDNA are anti-parallel. That means they have the exact same sequence but in a different order.TrueFalse
Which of the following tripeptides would be most likely to be soluble in an organic (hydrophobic) solvent like benzene?phenylalanine - alanine - isoleucinearginine - lysine - prolineglutamate - aspartate - glycineglutamine - phenylalanine - leucineleucine - alanine - lysine
Amino acid that has different backbone structure
Why are viruses not considered to be living ?They lack a membrane They lack DNA They lack RNA They cannot reproduce on their own and are metabolically inert . All of the above
Oxygen has ________ unpaired electrons in its outer shell and therefore has a valency of ______
Pluripotent cells are capable of differentiating intoNeural cells Blood cells Muscle cells Liver cells All of the above
The preference of water to interact with itself creates a force at the interface between water and nonpolar substances, such as air, that is called
Protein kinases in animal cells typically phosphorylate substrate proteins on ____ residues.
Which of the following pairs of functional groups commonly form non covalent bonds with one another?
Which functional group is ionized at a neutral pH and carries a +1 positive charge?
Which of the following is NOT a function of carbohydratesStructural supportEnergy storage and distributionDNA synthesisRecognition
Which amino acid is most likely to be buried within a protein core?LeucineSerineTyrosineLysineHistidine
Which of the following functional groups is hydrophobic CarboxylHydroxyl AminoPhosphateMethyl
SARS - CoV - 2 has a genome encapsulated by a which contains the important for cell and vaccine development .
Which of the following display least polarity
You shake out a few crystals of salt (Na+Cl-) from a salt shaker into beaker and decide youwant to break the ionic bonds holding the crystals together. What is the simplest, safest,cheapest and most energy efficient way to do this?

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