TLS Online TPP Program

#Id: 10729

#XL - R Botany

Modification of leaves

Leaves are often modified to perform functions other than photosynthesis.

Succulent leaves are also thickened leaves, but they are found above ground, still conduct photosynthesis, and function primarily in water storage

Spines are sharp projections derived from leaves that function in plant defense. Almost all cacti (in the plant family Cactaceae)  barberry and some Acacia species have spines 

Spines can also be formed from stipules (stipular spines) or bud scales.

Tendrils are another structure that can originate from multiple structures, including stems, leaves, or leaflets. 

leaves of glory lily are modified as tendrils

TLS Online TPP Program

#Id: 9295

#XL - S Microbiology

The nitrate reductase dimer- Three binding domains

TLS Online TPP Program

#Id: 9772

#XL - R Botany

Phytoalexins are low molecular weight, lipophilic antimicrobial compounds for which phenylalanine is a substrate used by phenylalanine ammonia lyase (PAL),

TLS Online TPP Program

#Id: 10740

#XL - R Botany

Spadix

The spadix is enclosed by leaf-like large, bright, colourful and curved bracts known as a “spathe”. 

Spadix

Examples: Present in the plants of family 

Araceae (arums), Musaceae, Palmaceae

TLS Online TPP Program

#Id: 9084

#XL - T Zoology