Multiple choice

Pollen grains

  1. Spherical measuring 25 - 50 micrometers in diameter

  2. has outer hard discontinuous layer EXINE made up of sporopollenin

  3. Inner continuous layer INTINE made up of Cellulose & Pectin

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pollen grains are generally spherical, 25-50 micrometers in diameter, and possess an outer exine (sporopollenin) and an inner intine (cellulose and pectin).

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