ARTICLES

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GASTROINTESTINAL HORMONE

Gastrointestinal hormones are chemical messenger that regulate the physiological functions. Gastrointestinal hormone includes gastrin, secretin, motilin, GIP, ghrelin, VIP, BBS. Read More >>>

CALORIFIC VALUE OF CARBOHYDRATE, PROTEIN AND FAT

The energy value of a food indicates how much energy the human body can gain through metabolism. The energy value specified in KJ/100gm. Read More >>>

DIGESTION, ABSORPTION AND ASSIMILATION OF PROTEIN

Protein is a large biomolecule that is digested by HCl, pepsin, trypsin and chymotrypsin. Later protein is absorbed by small intestine and remaining parts are excrete out in the form of faeces. Read More >>>

PERISTALSIS

Peristalsis is an involuntary movements of the circular and longitudinal muscles to push the food into the stomach. This is done by peristaltic waves which are generated to pass the food. Read More >>>

DIGESTIVE GLANDS

Food is an important source for human- beings to derive nutritional energy. Digestive glands of the alimentary canal secrete different enzymes and aids in the process of digestion. Read More >>>

HUMAN ALIMENATARY CANAL

Alimentary is a long hollow tube in humans which runs from mouth to anus. Different layers line the alimentary canal.It involves mechanical and chemical breakdown of food. Read More >>>

MASS FLOW HYPOTHESIS

Mass flow hypothesis states that the mass flow of solute take place from the source(mesophyll cells) to the sink (where photosynthesis needed). This theory was proposed by Ernst Munch. Read More >>>

WATER MOVEMENT BY PLANTS

Water transport is important for the uptake of mineral nutrients from the soil. There are three pathways which facilitate the movement of water in plants like apoplast, symplast, trans-membrane pathways. Read More >>>

TRANSPORT OF FOOD BY PHLOEM

Food is synthesized through the process of photosynthesis. It can be transported to different parts of the plant, this function is performed by phloem. Read More >>>

UPTAKE AND TRANSLOCATION OF MINERAL NUTRIENTS

Minerals are move into the roots by using energy in the form of ATP. After the uptake minerals are transported to all parts by transpiration pull. Later they are absorbed by active or passive transport. Read More >>>

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