All Categories
Biological Chemistry
Explore questions in the Biological Chemistry category that you can ask Spark.E!
- 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.
- A functional group is best described as groups ofa) elements that occur in a salt.b) atoms that greatly influence the chemical properties of molecules they are part of.c) the only atoms that ever function in the body.d) elements that form at high pH.
- The molecule CO2 is known asa) carbonized oxygen.b) carbonated oxygen.c) carbon monoxide.d) carbon dioxide.
- Which of the following substances would be most acidic?a) lemon juice, pH = 2b) urine, pH = 6c) tomato juice, pH = 4d) white wine, pH = 3e) stomach secretions, pH = 1
- Adding one phosphate group to adenosine formsa) ADP.b) ATP.c) AMP.d) 2ATP.e) ribose.
- 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
- An ion differs from its parent atom by the number of:neutrons.protons.electrons.atomic mass.
- Carbohydrates, lipids, and proteins area) organic molecules.b) inorganic molecules.c) acids.d) salts.e) bases.
- Adenosine is formed by combininga) adenine and ribose.b) adenine and phosphate group.c) ribose and a phosphate group.d) adenine, ribose, and a phosphate group.e) adenine, ribose, and 3 phosphate groups.
- Buffer pairs function to:a maintain the blood pH at 6.5.b keep the pH of all systems in the body at 7.00.c converting weak acids to stronger acids.d prevent large changes in pH.
- area of an enzyme where the substrate attaches active sitephosphorylasehydrolysisisomerase
- In an aqueous solution, sodium ions would move towarda) a negative terminal.b) a positive terminal.c) a pH terminal.d) an organic terminal.e) the bottom.
- A potato is eaten and then broken down into glucose. This process is called:anabolism.digestion.absorption.oxidation.
- Each of the following is an example of an inorganic compound, excepta) water.b) acids.c) bases.d) salts.e) proteins
- Which of the following is the symbol for an amino group?a) -COOHb) -PO3c) -NH2d) -AMOe) -OH
- Which pH is closest to normal blood pH?a) pH 7.4b) pH 8c) pH 6d) pH 1.5
- AB → A + B is to decomposition as A + B → AB is toa) exchange.b) synthesis.c) combustion.d) replacement.
- Each amino acid differs from another in thea) number of peptide bonds in the molecule.b) size of the amino group.c) number of carboxyl groups.d) nature of the side chain.
- The alpha-helix and pleated sheet are examples of ________ protein structure.a) primaryb) secondaryc) tertiaryd) quaternary