UPSC One
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2023 · Q23

Both starch and glycogen are made up of glucose, however:

general-sciencebiology-human-body
  1. Astarch is present in liver and glycogen is present in red blood cells.
  2. Bglycogen is made in animal cells, but starch is made in plant cells.
  3. Cboth starch and glycogen are present in animal and plant cells.
  4. Dboth starch and glycogen are present in plant cells only.

Explanation

Starch and glycogen are both polymers of glucose, but starch is the storage carbohydrate synthesised in plant cells (stored in chloroplasts and amyloplasts), whereas glycogen is the storage carbohydrate synthesised in animal cells (stored mainly in liver and muscle). Neither is made in both kingdoms. Hence glycogen is made in animal cells while starch is made in plant cells.