TERMS DEFINITIONS Carbohydrates Carbohydrates are polyhydroxy aldehydes or ketones. Disaccharides The sugars composed of mo monosaecharidesare called disaccharides.These sugars are linked bn glxcosidic linkage Sucrose It is a disaccharide formed …
TERMS DEFINITIONS Clay Clay is an inorganic material. It consists of aluminium and silicon oxides. Free space The term free space is used for the part of the plant cell …
The group of similar cells which performs same functions is called tissue. There are four types of tissues: epithelial tissues, connective tissues, muscles tissues and nerve tissues. Epithelial tissues The…
The assignment of a distinctive name to each species is called nomenclature. Problems with common names Common names have two problems: I. First, common names vary from country to country.…
Nucleus contains most of the genes that control the cell. It is the most conspicuous organelle in the eukaryotic cell. Its average diameter is about 5. It performs two major…
Nucleic acid is polymer of nucleotides. Discovery A German Chemist. Friedrich Miescher. discovered Nucleic in 1869. Ile discovered DNA only four years after the publication of Menders work. Miescher extracted…
ANIMAL SYSTEMATICS (CLASSIFICATION) Following groups used in animal classification: 1. Monophyletic Groups: The groups showing similarities due to single ancestors are called monophyletic groups. The classification based on monophyletic groups…
Vacuoles and vesicles are membrane-enclosed sacs within the cell. But vacuoles are larger than vesicles. Vacuoles have various functions. They form food by phagocytosis. Many freshwater protists have contractile vacuoles…
The elements which are needed by the plants for normal and healthy life are called essential elements. Only 16 elements, are essentigl elements. -Mere are two ty pes olessential elements:…
Microtubule-organizing centers The specialized non membranous regions of cytoplasm near the nucleus are the microtubule-organizing centers. These centers contain dense material. This material gives rise to a large number of…
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