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?

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.