Multiple choice

A plant is grown in bright sunlight. After a few hours, a leaf of the plant is plucked and treated with iodine solution and it turns black. When a section of this leaf is made and observed under microscope, _________ will be seen as stained blue-black.

  1. nucleus

  2. cell wall

  3. chloroplast

  4. vacuole

  5. _

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

They are the food producers of the cell and they work to convert light energy of the sun into sugars that can be used by cells.