Question: Sunken stomata are found in
Options:
hydrophytes
xerophytes
mesophytes
None of the above/More than one of the above
🔑Key Points:
-Xerophytes are plants found in the desert area.
-They require the least amount of water. In deserts there is a scarcity of water thus the plants have to take their water from the underground water level.
-Their stomata are of sunken type (deep-seated) like cup – shape depression as it helps them to prevent the loss of water through transpiration.
-Examples of xerophytes are – Aloe vera, Pineapple, Cactus, etc.
-The stomata are minute pores that occur in the epidermis of the plants.
-Each stoma remains surrounded by two kidneys or bean-shaped epidermal cells the guard cells.
–Â The stomata may occur on any part of a plant except the roots.
-The epidermal cells bordering the guard cells are called accessory cells or subsidiary cells.
-The number and types of stomata vary in different plant species based on their Habitat.
🔴Additional Information:
-Hydrophytes are plants that are either partially or fully submerged into water.
-Partially submerged hydrophytes like Lilly have stomata present on their upper leaf surface (lower pat is submerged in water).
-Fully submerged hydrophytes like water ferns do not have stomata, instead of stomata, the plant's surface cells are capable of absorbing water, nutrients, and dissolved gases in the water.
-Mesophytes have generally stomata present on the lower surface of the epidermis
-Examples are corn(maize), clover, cucurbit, etc
-Parasite: The organism that lives on or inside other living organisms, to derive their food are called parasites. Amarbel (Cuscuta) is a ''parasite''.