3. When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe2+ are occupied by (A) one O atom and one amino acid atom (B) one O2 molecule and one amino acid atom (C) one O2 molecule and one heme atom (D) two O atoms (E) two O2 molecules.

10. Which of these statements about the composition of biological membranes is false? (A) In a given eukaryotic cell type (for example, a hepatocyte), all intracellular membranes have essentially the same complement of lipids and proteins (B) The carbohydrate found in membranes is virtually all part of either glycolipids or glycoproteins (C) The plasma membranes of the cells of vertebrate animals contain more cholesterol than the mitochondrial membranes (D) The ratio of lipid to protein varies widely among cell types in a single organism (E) Triacylglycerols are not commonly found in membranes

3. When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe²⁺ are occupied by
(A) one O atom and one amino acid atom
(B) one O₂ molecule and one amino acid atom
(C) one O₂ molecule and one heme atom
(D) two O atoms
(E) two O₂ molecules.

相關試題

相關試卷

3. When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe2+ are occupied by(A) one O atom and one amino acid atom(B) one O2 molecule and one amino acid atom(C) one O2 molecule and one heme atom(D) two O atoms(E) two O2 molecules.

相關試題

相關試卷

3. When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe²⁺ are occupied by
(A) one O atom and one amino acid atom
(B) one O₂ molecule and one amino acid atom
(C) one O₂ molecule and one heme atom
(D) two O atoms
(E) two O₂ molecules.