Author Question: The nutrition class is discussing how some nutrients are necessary for various chemical substances ... (Read 51 times)

tatyanajohnson · **on:** Aug 2, 2018

The nutrition class is discussing how some nutrients are necessary for various chemical substances in the body. What is an essential component of thyroxine (T4) and triiodothyronine (T3)?

A) Iron B) Iodine C) Zinc D) Selenium

Question 2

High levels of low-density lipoproteins are associated with an increased risk of

a. diabetes mellitus.
b. high levels of HDL.
c. coronary artery disease.
d. high blood pressure and stroke.

covalentbond · **Reply #1 on:** Aug 2, 2018

Answer to Question 1

B
Feedback:
Iodine is an essential component of T3 and T4, the thyroid hormones responsible for regulating metabolic rate, body temperature, reproduction, growth, the synthesis of blood cells, and nerve and muscle function.

Answer to Question 2

C
High levels of low-density lipoproteins are associated with increased risk of coronary artery dis-ease. They do not have a direct effect on risk of diabetes mellitus or high blood pressure and stroke. LDL and HDL levels are not necessarily related.