ICSE Class 10 The Endocrine System — Mock Test (2027)

Free online mock test for The Endocrine System (ICSE Class 10 Biology) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.Which hormone is responsible for the descent of testes into the scrotum?
   • A.Estrogen
   • B.Testosterone
   • C.Luteinizing hormone
   • D.Growth hormone
2. 2.Why is iodine as a nutrient important to our body?
   • A.It is essential for the synthesis of thyroxine, a hormone that regulates metabolism, growth, and development.
   • B.It directly provides energy to cells by breaking down glucose in the body.
   • C.It strengthens bones and teeth by aiding calcium absorption.
   • D.It helps in the production of red blood cells to prevent anemia.
3. 3.The deficiency of ADH causes
   • 1.Diabetes insipidus
   • 2.Diabetes mellitus
   • 3.Dwarfism
   • 4.Acromegaly
4. 4.How do endocrine glands differ from other glands?
   • A.Endocrine glands secrete hormones directly into the bloodstream without ducts, while other glands use ducts to release substances.
   • B.Endocrine glands release enzymes through ducts to target organs, unlike other glands that secrete into the blood.
   • C.Endocrine glands are larger and store secretions in ducts, whereas other glands release substances immediately.
   • D.Endocrine glands secrete only sweat and digestive juices, while other glands produce hormones for the blood.
5. 5.Which of the following is NOT a symptom of virilism in females?
   • A.Growth of beard
   • B.Increase in breast size
   • C.Low pitch voice
   • D.Lack of menstruation