CBSE · Class 11 · Biology · Chemical Coordination and IntegrationName the gland that secretes melatonin, which regulates the 24-hour diurnal rhythm of our body.
Step-by-Step Solution
The pineal gland is located on the dorsal side of the forebrain and secretes melatonin. Melatonin plays a very important regulation role in a 24-hour (diurnal) rhythm of our body, such as the sleep-wake cycle and body temperature.
Detailed Options Breakdown
Option : Thyroid gland
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Coordination and Integration.
Option 1: Adrenal gland
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Coordination and Integration.
Option 2: Pineal gland (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: Thymus gland
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Coordination and Integration.
💡 Study Guide: This question tests core syllabus concepts from Chemical Coordination and Integration. For formulas, key summaries, and mock exam reference guides, read the full Chemical Coordination and Integration Revision Notes.