Asked in Premeth past paper pool — BiologyModerate

In the digestive system of cockroach, the function of gizzard is to:

Correct answer: A. Grind the ingested food

  • A. Grind the ingested food
  • B. Temporarily store the food
  • C. Secrete hydrolytic enzymes
  • D. Reabsorb water from the haemolymph

Explanation

The correct answer is Option A.The gizzard in a cockroach is a thick-walled muscular organ that mechanically breaks down food by grinding it. This process is aided by the presence of chitinous teeth or plates. This function is crucial for the digestive process as it prepares the food for further enzymatic digestion.

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About Human Digestive System

The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.

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