Iodine

Question 1

Roles of iodine (5)

Answer 1

Produce thyroid hormone

Thyroid hormones involved in:
Metabolic rate 
Thermogenesis 
Heart function 
Growth and development

Question 2

Disorders caused by iodine deficiency (2)

Answer 2

Goitre

Cretinism

Question 3

Goitre (4)

Answer 3

Main clinical sign of IDD
Enlargement of thyroid hormone
Dietary iodine under 50 mg a day
Reversible with iodine treatment

Question 4

Cretinism (3)

Answer 4

Due to IDD before birth
Irreversible neurological syndrome
Stunted growth

Question 5

How do goitrogens affect iodine metabolism (3)

Answer 5

Reduces iodine uptake into thyroid gland
Reduces synthesis of thyroid hormone
Reduces release of hormones for the gland

Question 6

Examples of goitrogens (2)

Answer 6

Thiocynates

Cyanogenic glycosides

Question 7

Food with cyanogenic glycosides

Answer 7

Cassava

Question 8

Foods with thiocynates (5)

Answer 8

Cabbage 
Kale
Cauliflower 
Broccoli 
Spouts

Question 9

What is iodine deficiency the leading preventable cause of?

Answer 9

Mental retardation

Question 10

Whet do levels of iodine depend on?

Answer 10

Level of iodine in soil of area of production