Biology · Coordination and Control
Work through this past-paper style MCQ, then read the full explanation. Practice more biology questions on mMCQ with adaptive practice and topic analytics.
The disease which is caused by the deficiency of thyroxine:
- A
Grave’s disease
- B
Goiter
- C
Hyperglycemia
- D
Dwarfism
Hyperglycemia is caused by under production of insulin hormone.
Option B is correct as iodine deficiency is the most common cause of goiter. The body needs iodine to produce thyroid hormone. If you do not have enough iodine in your diet, the thyroid gets larger to try and capture all the iodine it can, so it can make the right amount of thyroid hormone.
A is incorrect as Graves' disease is an immune system disorder that results in the overproduction of thyroid hormones (hyperthyroidism).
B is correct as iodine deficiency is the most common cause of goiter. The body needs iodine to produce thyroid hormone. If you do not have enough iodine in your diet, the thyroid gets larger to try and capture all the iodine it can, so it can make the right amount of thyroid hormone.
Hyperglycemia is caused by under production of insulin hormone.
D is incorrect as Dwarfism is short stature that results from a genetic or medical condition.
Tagged under Biology · Coordination and Control · 2017