Which of the following statements are true of thyroxine (and T₃) and growth hormone (GH)? (Read carefully and select all of the correct statements.) A)Thyroxine contains iodine and GH contains iron. B)Thyroxine increases the use of all food types for energy. C)GH increases the use of amino acids to produce energy. D)Both hormones increase the rate of mitosis in growing tissues. E)Both hormones increase the rate of protein synthesis in cells. F)Thyroxine is secreted throughout life, but GH is secreted only when the body is growing in height.

Question

Quizplus · Accepted Answer

A) This statement is false as thyroxine contains iodine, but GH does not contain iron.
B) This statement is true. Thyroxine increases the metabolic rate of all cells, leading to increased energy use from all food types.
C) This statement is false. GH primarily increases the use of stored fats for energy, but also helps spare amino acids from being used for energy.
D) This statement is true. Both hormones increase the rate of cell division in growing tissues.
E) This statement is true. Both hormones increase the rate of protein synthesis in cells.
F) This statement is false. GH is secreted during all stages of life, but its levels decrease with age.

Which of the Following Statements Are True of Thyroxine (And