NEET Biology Chemical Coordination and Integration Questions
Chemical Coordination and Integration practice focused on endocrine glands, hormones, feedback and common endocrine disorders. Every preview below comes from NeetVellum's live original bank—not an unverified PYQ reconstruction.
endocrine glands, hormones, feedback and common endocrine disorders.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 1 · difficulty 1/5
A hormone secreted by the pineal gland helps maintain the 24-hour sleep–wake cycle in humans and also influences body temperature, pigmentation and the timing of the menstrual cycle. Identify this hormone.
A. Melatonin
B. Serotonin
C. Epinephrine
D. Melanocyte-stimulating hormone
Example 2 · difficulty 2/5
A patient passes very large volumes of pale, dilute urine and complains of persistent thirst, yet routine tests show normal blood glucose levels. Deficiency of which hormone best explains this condition?
A. Insulin
B. Vasopressin (ADH)
C. Cortisol
D. Aldosterone
Example 3 · difficulty 3/5
Which pairing of an adrenal cortical zone with its principal secretion is correct?
A. Zona glomerulosa – cortisol
B. Zona fasciculata – aldosterone
C. Zona reticularis – dehydroepiandrosterone (a sexocorticoid)
D. Zona fasciculata – adrenaline
The evidence-first practice loop
1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.