Biological Chemistry Questions
Explore questions in the Biological Chemistry category that you can ask Spark.E!
In a chemical reaction, enzymes control:the speed of the reaction.the nature of the end products.the temperature of the reaction.the pH of the reaction.
The nucleus of an atom consists ofa) electrons.b) protons.c) neutrons.d) protons + neutrons.e) protons + electrons.
In hydrolysis reactions, compounds react witha) hydrogen, causing decomposition.b) glucose, causing decomposition.c) water, causing decomposition.d) carbon, causing decomposition.
When placed in water, an inorganic compound dissociates 99 percent, forming hydrogen ions and anions that are not OH-. This compound would bea) a strong base.b) a weak base.c) a strong acid.d) a weak acid.e) a salt.
Interaction between two or more polypeptide chains to form a protein complex is __ structure.a) primaryb) secondaryc) tertiaryd) quaternary
You would expect a peptide bond to linka) two simple sugars.b) two amino acids.c) two nucleotides.d) a sugar and a peptide.e) a peptide and a fatty acid.
Lipidsa) form essential structural components of cells.b) provide roughly twice the energy as carbohydrates.c) help insulate the body.d) cushion organs against shocks.e) all of the above.
An example of an inorganic substance is (are)a) fructose.b) water.c) glycerol.d) amino acid.
The most abundant high-energy compound in cells isa) DNA.b) ADP.c) AMP.d) ATP.e) RNA.
A side chain on an amino acid is sometimes calleda) fibrous or globularb) a polypeptide chainc) an R groupd) nucleic acid
a chemical reaction in which a substance is broken down and water added to the broken bondsactive sitephosphorylasehydrolysisisomerase
The group of organic compounds containing carbon, hydrogen, and oxygen in a near 1:2:1 ratio is likely aa) carbohydrate.b) lipid.c) protein.d) nucleic acid.e) cholesterol.
A fatty acid that contains multiple double covalent bonds is said to bea) saturated.b) monounsaturated.c) polyunsaturated.d) hydrogenated.
Compounds that are ionically bonded:share electrons.dissociate into electrolytes in water.are held together by hydrogen atoms.do not dissociate in solution.
The sugar added to water is called the:solvent.hydrate.anhydrates.solute.
Hydrophilic molecules readily associate witha) lipid molecules.b) hydrophobic molecules.c) water molecules.d) both lipid molecules and hydrophobic molecules.e) cholesterol.
substrates into different structural forms without the gain or loss of atomsactive sitephosphorylasehydrolysisisomerase
Nonpolar organic molecules are good examples ofa) electrolytes.b) molecules that will dissociate fully when placed in water.c) hydrophobic compounds.d) hydrophilic compounds.
Substrate molecules bind to enzymes at the ________ sites.a) aminob) activec) carboxyld) neutral
Lipids that are produced by nearly every tissue in the body and that act as local regulators of cell activities are thea) prostaglandins.b) steroids.c) monoglycerides.d) phospholipids.e) glycolipids.