Large nearly empty, colourless cells present on upper surface of grass leaf are ______________.
Large nearly empty, colourless cells present on upper surface of grass leaf are ______________.
The correct option is B Bulliform cells
Accessory cells - epidermal cells
present around the stomata are called Accessory cells. They help in stomatal
transpiration.
Bulliform cells - The large, colourless,
water-filled, hygroscopic, epidermal cells present in the upper epidermis of
grass leaves are called Bulliform cells or Motor cells. They involve in the
rolling of leaf lamina during dry conditions and unrolling of leaf lamina
during wet conditions.
Palisade parenchyma - It is present
below the upper epidermis. In this, cells are cylindrical, closely arranged,
with more number of chloroplasts.
Passage cells - Endodermal cells without
Casparian thickenings are called Passage cells. These are present opposite to
the protoxylem cells. These are meant for transport of water from cortex to
stele.
So, the correct option is 'Bulliform
cells'.
The correct option is B.
Accessory cells - epidermal cells present around the stomata are called Accessory cells. They help in stomatal transpiration.
Bulliform cells - The large, colourless, water-filled, hygroscopic, epidermal cells present in the upper epidermis of grass leaves are called Bulliform cells or Motor cells. They involve in the rolling of leaf lamina during dry conditions and unrolling of leaf lamina during wet conditions.
Palisade parenchyma - It is present below the upper epidermis. In this, cells are cylindrical, closely arranged, with more number of chloroplasts.
Passage cells - Endodermal cells without Casparian thickenings are called Passage cells. These are present opposite to the protoxylem cells. These are meant for transport of water from cortex to stele.
So, the correct option is 'Bulliform cells'.
The correct option is B.
