Botany - Morphology of Flowering Plants Question with Solution | TestHub
BotanyMorphology of Flowering PlantsThe RootEasy2 minPYQ_2020
BotanyEasysingle choice
Which of the following types of roots are correctly matched with their examples?
I. Apogeotropic roots:Rhizophora
II. Absence of calyptra:Lemna
III. Velamen containing roots:Vanda
IV. Moniliform roots:Portulaca
Options:
Answer:
D
Solution:
Apogeotropic means negatively geotropic roots. They are seen in halophytes that grow in oxygen-deficient soil. So the root grows vertically upwards. They are also called pneumatophores. They are seen inRhizophora, Sonneratia, Heritiera,etc. TheCalyptrais a root cap. It is absent in hydrophytes that float on water such asLemna, Pistia,etc. Velamen is hygroscopic roots found in epiphytes (plants which grow on large trees) such asVanda. Moniliform roots are beaded roots found inMimordica, Portulaca,etc.
Stream:NTA_ABHYAS_NEETSubject:BotanyTopic:Morphology of Flowering PlantsSubtopic:The Root
⏱ 2mℹ️ Source: PYQ_2020
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