Biology Today — December 2017

...

...

...

...

...

...

CONTENTS Competition Edge Class XI Class XII Subscribe online atwww.mtg.in 45 69 52 81 86 8 54 31 73 24 8 High Yield Facts-Botan ...

FACTS HGH YIELD Class XI Analysis of various PMTs from 2013- 2013 2014 2015 2016 2017 AIPMT/NEET 4 4 1 4 AIIMS 1 2 3 2 2 AMU ...

...

ALGAE Algae are chlorophyllous thallophytes characterised by absence of embryo stage and presence of non-jacketed gametangia wit ...

Algae of unusual habitats Halophytic algae - Occur in saline sea water and salt lakes and can withstand high concentration of s ...

Economic Importance Carrageenan Obtained from red algae Chondrus crispus and issued as pharmaceutical emulsifier, cleaning agent ...

Sporophyte consists of foot, seta and capsule. In some members, however, the sporophyte is represented either only by capsule o ...

Affinities of Bryophytes with Algae Terrestrial plants found in shady and moist habitats. Thallus is usually dichotomously bran ...

The diploid spore mother cells or sporocytes within the sporangia undergo meiosis or reduction division to form spores. These s ...

Affinities of Pteridophytes with Bryophytes Sporophyte is the dominant phase in the life cycle. Plant body is differentiated in ...

GYMNOSPERMS Gymnosperms are plants with naked seeds, having freely exposed ovules on megasporophylls. They are referred to as p ...

Classification of Gymnosperms Gymnosperms Cycadopsida Primitive group, containing plants with palm like habit and fern like fol ...

ANGIOSPERMS Angiosperms are seed plants in which sporophylls are organised into flowers and seeds are produced inside fruits. T ...

ALTERNATION OF GENERATION Different plant groups complete their life cycles in different patterns. The phases in which the life ...