Describe internal structure of sunflower leaf.

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In leaves, the ground tissues consists of

Grass leaves can fold and unfold because they

Assertion: Bulliform cells are useful in the unrolling of leaf.
Reason: Bulliform leaves store water

  • [AIIMS 2011]

The epidermis in a dorsiventral leaf
$(a)$ Covers both adaxial and abaxial surfaces
$(b)$ Is not covered by cuticle
$(c)$ Bears more stomata on the upper side
$(d)$ May even lack stomata on the upper side
Which of the above statements are correct?

Palisade parenchyma is absent in leaves of

  • [AIPMT 2009]