Which of the following statements about facilitated diffusion is true? Gated proteins control the rate of diffusion.

Molecules move up the concentration gradient.

ATP is required to move molecules through the protein channels.

Molecules move from an area of low to high concentration.
Which of the following statements about active transport is true?

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.