Multiple choice

Tiny pores, or guard cells present on the surface of leaves, are called _________.

  1. cell membrane

  2. nucleus

  3. cytoplasm

  4. stomata

  5. chlorophyll

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

Carbon dioxide from air is taken in through the tiny pores present on the surface of the leaves. These pores are surrounded by ‘guard cells’. Such pores are called stomata.