The insect hindgut is usually more acidic than the midgut, partly due to:
Show Hint
- Gizzard
- Crop
- Midgut
- Malpighian Tubules
The Correct Option is B
Solution and Explanation
Malpighian tubules:
Primary excretory organs in insects
Empty into the hindgut
Secrete potassium ions (K+) creating acidic conditions
pH gradient:
Midgut: Alkaline (pH 8
11) for digestion
Hindgut: Acidic (pH 4
6) for water/ion reabsorption
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