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Question
In Vanda, velamen helps in
In Vanda, velamen helps in
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Solution
The correct option is C Moisture absorption from air
Vanda is an epiphytic orchid, which usually grows on branches of other trees. It does not take any food, water or minerals from the host tree but grows on the branches to get the firm support so as to get maximum sunlight in a thick forest where sunlight does not reach on the ground. Velamen tissue from the roots are parenchymatous cells which are loosely arranged and they are capable of absorption of water vapour directly from the atmosphere. With the help of this water, the green leaves of Vanda can synthesize its own food and survive.Thus, the correct answer is option A.
Vanda is an epiphytic orchid, which usually grows on branches of other trees. It does not take any food, water or minerals from the host tree but grows on the branches to get the firm support so as to get maximum sunlight in a thick forest where sunlight does not reach on the ground. Velamen tissue from the roots are parenchymatous cells which are loosely arranged and they are capable of absorption of water vapour directly from the atmosphere. With the help of this water, the green leaves of Vanda can synthesize its own food and survive.
Thus, the correct answer is option A.
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