23rd of March 2017

Please help me in my practical of homology and analogy organs in plants.

It's difficult to learn the plants example without seeing them.

Ira Jain - CBSE - Class X

Thursday, March 23, 2017 at 14:32:PM


Hi Ira,

Homologous Structures - 

Leaves of pitcher plant, venus fly trap and cactus

In the pitcher plant, leaves are modified into pitchers to catch insects.

In the venus fly trap, leaves are modified into jaws to catch insects

In cactus, leaves are reduce to spines to reduce the water loss

Thorns of Bougainvillea and Tendrils of cucurbita

Thorns in  Bougainvillea provides protection while tendrils in cucurbita acts as a climbing organ

Analogous Structures

Potato and sweet potato - Both store food but potato is a modified stem and sweet potato is a modified root.

Leaves of Opuntia and Leaves of Banyan Tree - In Opuntia, the stem is modified into leaf like structure to perform photosynthesis

Thursday, March 23, 2017 at 18:02:PM