Which of the following best describes the components of the DNA twisted ladder? A. The sides are made of alternating polypeptide chains, and the rungs are made of amino acid segments joined by
hydrogen bonds

B. The sides are made of alternating amino acids, and the rungs are made of polypeptide chains joined by hydrogen bonds.

C. The sides are made of alternating phosphate-sugar groups, and the rungs are made of complementary nitrogenous
bases joined by hydrogen bonds

D. The sides are made of alternating nitrogenous bases, and the rungs are made of phosphate-sugar groups joined by hydrogen bonds

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis