Ribosomes are the protein manufacturing factories. They facilitate the protein synthesis by mRNA, where sequences of amino acids in the growing... View Article
There are peripheral and integral proteins present in the cell membrane. They are involved in the cell signalling pathway, defence mechanisms,... View Article
A nucleosome is the repeating unit in the chromatin thread. It is made up of a core of histone octamers wrapped around by a DNA double helix.... View Article
The deficiency of protein and calories in the food is termed protein-energy malnutrition or PEM. Kwashiorkor and Marasmus are the two conditions... View Article
A) oxidation of phosphate group in ATP B) formation of ATP by transfer of phosphate group from a substrate to ADP C) formation of ATP by energy... View Article
A) Fructose 1, 6-Âbisphosphate B) Glucose-Â6-Âphosphate C) Acetyl CoA D) Pyruvic acid Answer: C) Acetyl CoA Explanation: Acetyl CoA is... View Article
A) During the conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised. B) There is one point in the cycle where FAD+ is... View Article
Organisms who can manufacture organic compounds from inorganic raw materials in the presence of solar energy and photosynthetic pigments are... View Article
Marchantia is a liverwort in which the sex structures are borne on disc shaped Âlobed receptacles borne at the tip of vertical gametophores.... View Article
Bryophytes can be separated from algae, because they possess archegonia. Both of them are autotrophic and lack vascular tissues. Rhizoids are... View Article
The walking fern is named so because they propagate vegetatively by their leaf tips. When their leaf tip is in proximity with the soil, they form... View Article
Dichotomous branching is a characteristic feature of liverworts examples - Pellia, Riccia, Marchantia, etc. which is a primitive form of... View Article
Bryophytes are green photosynthetic and thalloid structures. The plant body exhibits root, stem and leaves. Rhizoids are seen instead of roots,... View Article
Bryophytes comprise a small sporophyte phase and are generally parasitic on gametophyte. The main plant body is gametophytic which is independent... View Article
Meiosis in ferns occurs at the time of spore formation. The plant body of ferns is sporophytic (2n), differentiated into leaves, stems and roots.... View Article
Cycas has two cotyledons but is not included in angiosperms because of naked ovules. Cycas belongs to Order Cycadales of gymnosperms as it has a... View Article
Mosses (primitive bryophytes) are small and lack a tubular vascular system. They are non-vascular plants and hence must absorb water. They depend... View Article
Eichler divided the plant kingdom into two sub kingdoms -  Cryptogamae and Phanerogamae. Plants reproducing by spores such as ferns and mosses... View Article
