Reference no: EM133201099

Question 1.

You start a summer job in a laboratory studying plant extracts. One substance you find inhibits the thyroperoxidase enzyme. What will this do if eaten by a person?

inhibit TSH

raise body temperature

lower T3, T4 production

increase T3, T4 production

Question 2.

Another substance you find is able to inhibit type 1 5' de-iodinase. What will this do if ingested by a person?

increase body temperature

lower T3 production

lower T4 production

lower TSH production

Question 3.

I a person doesn't eat enough iodine, then blood plasma tests will show

TSH is high, T4 is low

TSH is low, T4 is low

TSH is high, T4 is high

T3 is high, T4 is high

Question 4.

If a person eats an excessive amount of iodine, then as part of the Wolff-Chaikoff effect they will

increase thyroid hormone production

lower thyroid hormone production

raise TSH production and T4 production

not effect thyroid hormone production

Question 5.

A person was in a car accident, where the sudden stop led to hitting the steering wheel with their throat. This could cause damage and disrupt the walls of the follicles of the thyroid, which could rapidly lead to sudden

hyperthyroid symptoms

should not affect thyroid function

hypothyroid symptoms