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MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics

Barishal Board 2021

In which plant is the first stable substance phosphoglyceric acid?

Think it through first, then pick an option.

  1. a Sugarcane
  2. b Maize
  3. c Jackfruit
  4. d Motha grass
Answer and explanation

Correct answer: c Jackfruit

Jackfruit is a C3 plant; its first stable substance is phosphoglyceric acid.

Why the other options are wrong

  • a Sugarcane: Sugarcane is a C4 plant; its first stable substance is oxaloacetic acid.
  • b Maize: Maize is a C4 plant; its first stable substance is oxaloacetic acid.
  • d Motha grass: Motha grass is a C4 plant; its first stable substance is oxaloacetic acid.