How glucose reach into cytoplasm?

After sucrose is digested into glucose and fructose in the small intestine:

  1. Absorption into blood: Glucose is absorbed through the villi of the small intestine into the bloodstream.
  2. Transport to cells: Blood carries glucose to all body cells.
  3. Entry into cells: Glucose enters cells through the cell membrane using specific transport proteins (glucose transporters).
  4. Reaches the cytoplasm: Once it crosses the cell membrane, glucose is present in the cytoplasm (cytosol) of the cell.
  5. Glycolysis begins: In the cytoplasm, glucose is broken down to pyruvate during glycolysis.

Flow Chart

Sucrose → Glucose + Fructose (small intestine) → Blood → Body cells → Cytoplasm → Glycolysis → Pyruvate

For NEET, remember:

  • Digestion of sucrose: Small intestine
  • Absorption of glucose: Intestinal villi
  • Site of glycolysis: Cytoplasm
  • Site of aerobic respiration after glycolysis: Mitochondria

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