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MCQ on Class 5 Endocrine System

Last updated on December 9th, 2023 at 10:01 pm

If you are looking for MCQ on Endocrine System then you are on the right place.”Test your knowledge of the Endocrine System with these multiple-choice questions (MCQs) covering hormones, glands, and related disorders.”

What are hormones?
a) Ductless glands
b) Chemical messengers
c) Target cells
d) Cellular activities
Answer: b) Chemical messengers


Which gland secretes insulin and glucagon?
a) Thyroid gland
b) Pituitary gland
c) Pancreas
d) Thymus
Answer: c) Pancreas


What is the normal blood glucose level?
a) 20-40 mg/100ml
b) 50-80 mg/100ml
c) 70-110 mg/100ml
d) 120-150 mg/100ml
Answer: c) 70-110 mg/100ml


What type of diabetes is related to defective insulin production due to beta cell destruction?
a) Type 1 diabetes
b) Type 2 diabetes
c) Gestational diabetes
d) Prediabetes
Answer: a) Type 1 diabetes


Which hormone produced by the thyroid gland regulates growth and brain development?
a) Calcitonin
b) Insulin
c) Thyroxine
d) Glucagon
Answer: c) Thyroxine


What is the condition characterized by an enlarged thyroid due to iodine deficiency?
a) Diabetes
b) Hypothyroidism
c) Goitre
d) Hyperthyroidism
Answer: c) Goitre


Which hormone lowers blood calcium levels?
a) Calcitonin
b) Insulin
c) Parathormone
d) Thyroxine
Answer: a) Calcitonin


What does the thymus gland control?
a) Blood sugar levels
b) T lymphocytes for immunity
c) Water balance
d) Daily rhythms
Answer: b) T lymphocytes for immunity


Which gland secretes melatonin?
a) Pituitary gland
b) Thyroid gland
c) Thymus gland
d) Pineal gland
Answer: d) Pineal gland


What does the posterior lobe of the pituitary gland produce?
a) Thyroxine
b) Oxytocin and vasopressin
c) Calcitonin
d) Insulin
Answer: b) Oxytocin and vasopressin


What is the role of vasopressin?
a) Regulates growth
b) Controls water balance
c) Increases energy production
d) Regulates blood sugar
Answer: b) Controls water balance


Which part of the brain controls the endocrine system by producing releasing and inhibitory hormones?
a) Cerebellum
b) Medulla oblongata
c) Hypothalamus
d) Pituitary gland
Answer: c) Hypothalamus


What are chemical substances used by animals for communication?
a) Hormones
b) Enzymes
c) Pheromones
d) Antibodies
Answer: c) Pheromones


Which hormone prevents fruit dropping and promotes root growth?
a) Ethylene
b) Gibberellins
c) Auxins
d) Abscisic acid
Answer: c) Auxins


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