Transport of Nutrients
The food is digested into the simplest of the forms in t he digestive system. Blood carries the digested food or the nutrients absorbed from the intestine to the liver and then to other parts of the body. The food transported includes glucose, fatty acids, amino ..
Chymotrypsin
is also present in the inactive form chymotrypsinogen in the pancreatic juice. It is converted into its active form by trypsin. Chymotrypsinogen also acts on casein and thus coagulates milk. (How is it different from pepsin and rennin?) Apart from this, it also hydrolyses prot..
Activities and Experiments
The food that is digested is absorbed into the blood and lymphatic systems. The lymphatic system carries the digested fats as fatty acids and glycerol into the blood vessel going into the heart. The digested food in the blood stream reaches the liver. Here, the excess glucose is sto..
Cell Wall
It is the outer tough covering around the cell, which provides specific shape and protection to the bacterium. It prevents the cell from swelling and bursting due to osmotic changes. It is composed of a polysaccharide called murein or peptidoglycan. It consists of polysaccharide cross linked with h..
DNA as Specificity Control
In order to maintain its own special characteristics a cell must manufacture proteins exactly similar to those already present in it. Thus, protein synthesis requires specificity control to provide instructions about the exact sequence in which the given numbers and kinds of amino a..
Translation-Synthesis of Proteins
Translation is the mechanism by which the triplet base sequence of an mRNA guides the linking of a specific sequence of amino acids to form a polypeptide (protein) on ribosomes. All the proteins a cell needs are synthesized by the cell within itsel..
Nitrogen Metabolism in Plants
Nitrogen is one of the important elements found in living organisms. Supply of nitrogen from the atmosphere is maintained. Nitrogen is an essential constituent of amino acids and hence the proteins cannot be absorbed by the plants directly from the atmosphere though it con..
Elongation of Polypeptide Chain
. The amino acid methionine is transferred from its tRNA onto the newly arrived proline tRNA complex where the two amino acids join by a peptide bond. The process is catalyzed by the enzyme peptidyl transferase located on the ribosome. In this process, the li..
Assimilation
The food that is digested is absorbed into the blood and lymphatic systems. The lymphatic system carries the digested fats as fatty acids and glycerol into the heart. The digested food in the blood stream reaches the liver. Here, the glucose is stored as glycogen to be used when the need ..
Importance of Chemicals in Food
Actually speaking, natural food substances are various forms of chemicals. For e.g., rice is a carbohydrate. Fruits contain carbohydrates and acids like citric acid. Vegetables contain proteins (amino acid blocks) and vitamins. Besides these, ..
Result
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