nutrition and digestion in human

Parasites are also classified as obligate or facultative. Obligate parasites have to live parasitically at all times. For example: Phytophthora, a fungus which causes potato blight. Facultative parasites may feed parasitically or saprophytically. For example: Candida (fungus causing thrush in ..

Parasites are also classified as obligate or facultative. Obligate parasites have to live parasitically at all times. For example: Phytophthora, a fungus which causes potato blight. Facultative parasites may feed parasitically or saprophytically. For example: Candida (fungus causing thrush in ..

Ingestion Digestion Absorption Assimilation Egestio..

It is the largest gland and is found in the upper part of the abdomen on the right side just below the diaphragm. Its secretion is called bile juice. It is alkaline and rich in organic (steroid) salts called the bile salts. The alkaline nature serves to neutralize the acidic pH of the gastric juic..

is the cell wall material and cannot be digested by humans. It provides the roughage in the die..

>Egestion - Removal of undigested or waste matter is called egestion Nutrition in amoeba is holozoic. The food is ingested at the point where it comes in touch with the cell surface with the help of pseudopodia. Digestion in amoeba is intracellular and with the help of lysosomal..

(animals which have saprotrophic nutrition) are Mastigamoeba and Chilomonas. The digestive juices are secreted by the cell membranes which means the general body surface as they are single-celled protozoans. Saprotrophs are different from detritus feeders which do not dige..

Digestion - breaking down food into simpler forms. Digestion is both and chemical . The digestion may take place outside cells ( extracellular ) or within the cells ( intracellular ). Absorption - Taking in of food in the soluble forms into the tissues. The absor..

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All organisms require energy in order to stay alive. Energy is utilised to do the various bodily functions such as breathing, ingesting and digesting food, excreting, reproducing, locomotion, etc. Energy is obtained from food. Thus the process of intake of food is vital for the survival o..