Nutrition Essay

Holozoic edible (Gr. holo means-whole zoikos means-of animals) is a method acting of nutrition that involves the ingestion of runny or solid natural material, digestion, absorption and assimilation of it to utilize it. It includes fetching in the complex substances and converting them into simple-mindedr forms. Example, proteins gutter be broken into amino acids. This method suggests phagocytosis where the cell membrane completely surrounds a intellectual nourishment particlepicParasitic living is a mode of heterotrophic nutrition where an organism (known as a parasite) lives on the body surface or inside the body of some other type of organism (known as a waiter). The parasite obtains nutrition at one time from the body of the host. Since these parasites evoke their nourishment from their host, this symbiotic interaction is often set forth as harmful to the host. Parasites are numberent on their host for survival, since the host provides nutrition and protection. As a result of this dependence, parasites have considerable modifications to hone parasitic nutrition and therefore their survival.Saprotrophic nutrition (pron. /sprtrfk/) is a process of chemoheterotrophic extracellular digestion involved in the bear on of dead or decayed organic matter. It occurs in saprotrophs or heterotrophs, and is intimately often associated with fungi, for example Mucor and Rhizopus. The process is most often facilitated through the active transport of such materials through endocytosis within the internal mycelium and its constituent hyphae.1autophytic NutritionThe term autotroph has been derived from two Greek wards-auto means egotism and troph means nutrition. In this mode of nutrition, the organisms prepare their own food from simple raw materials like water, carbon dioxide and mineral salts in the presence of sunlight. Chlorophylls endow in the chloroplast or green plants are the site of food return. consequently all green plants are the examples of this category. The process by which they synthesize food is known as photosynthesis. Some nongreen becteria like sulphur bacteria can use talent which they derive from some chemical reactions occurring in them. With this energy they manufacture their food. This process is called chemosynthesis. Thus the autotrophs include both the photosynthetic and che4mosynthetic organisms.heterotrophic NutritionThe word heterotrophy has been derived from two Greek words-hetero means different and troph refers to nutrition of food. The organisms which derive their food from others are known as heterotrophic organisms. They depend for their food on other organisms, hence they are called consumers. All animals, compassionate beings and non-green plans like fungi come under this category. They consume complex organic food prepared by autotrophs or producers and break it into simple from to derive nourishment. Thus the difference between heterotrophy and autotrophs is basically in the mode of produc tion of food. Due to lack of chlorophyll, heterotrophs cannot synthesize their food while autotrophs can get along photosynthesis.