Peptide bond:bond b/n two amino acids in formation of a protein or a polypeptide.
Aestivation:mode of arrangement of petals in a flower.
Active transport:transport ofmolecules across plasma membrane.
Passive transport:transport of molecules across plasma membrane without any loss of energy.
Uricotelic:Nanimal is said to be uricotelic if it converts the nitrogenous wastes into uric acid.
Amisogamous:fusion of 2 gametes which are dissimilar in size and shape.
Glicosidic bond:bond b/n 2 monosaccharides in formation of a polysaccharide.
Herbarium:a type of a store house inwhich plant species are preserved on sheets in dried form.
Biological museum:a place where the plant and animals are preserved for study.e.g.school and colleges.
Chemosynthetic autotrophic bacteria:bacteria which oxidises the inorganic substances to produce energy.
Heterotrophic bacteria: bacteria which do not syntheized their food itself and lives as parasite on other animals.
saprophytes: which absorb soluble organic matter from dead organisms for their food.
lichen:symbiotic assotiation of fungi withan algae.
Micorhizza:symbiotic assotiation offungiwith roots of higher plants.
plasmogamy:fusion of protoplasms of motile and non-motile gametes.
karyogamy:fusion of two nuclei.
protonema:first stage of life cycle of moss in which a spore give rise to the adult directly.
staminode: sterile stamen of a plant.
poikilotherms;animals those temprature varies with the temprature of environment.