Tag: diseases caused by changes in lifestyle

Proteins are regarded as the building blocks of our body. It helps in the growth and development of the body. It helps to build and repair the damaged tissues. It forms an integral component of the enzymes and hormones of the body which helps in the regulation of metabolic activities like digestion etc. It also provides energy to the body for physical and metabolic activities. The protein contains four calories per gram. Fish and proteins are good sources of proteins. Other sources are milk, yoghurt and cheese etc.

Roughage is basically edible fiber. It has the capacity to resist the enzymes of human digestive system. It helps in proper elimination of waste products. examples are whole grains like oats and vegetables like carrot and cucumber. So, the correct option is 'Fibres'.

The main components of dietary fiber are derived from the cell walls of plant material in the diet and comprise cellulose, hemi-cellulose and pectin (the non-starch polysaccharides). Lignin, a non-carbohydrate component of the cell wall is also often included. Dietary fiber is a term which is felt to be valuable for the consumer who looks upon this as a healthy component of the diet. At the present time, there is no consensus as to which components of carbohydrate should be included as dietary fiber and different authors have variously included non-starch polysaccharides and resistant starch.

Deoxyribose, also known as D-Deoxyribose and 2-deoxyribose, is a pentose sugar (monosaccharide containing five carbon atoms) that is a key component of the nucleic acid deoxyribonucleic acid (DNA). It is derived from the pentose sugar ribose. So, the correct option is 'True'.

A balanced diet is one which provides all the nutrients in the required amounts and proper proportions. A balanced diet should provide around 50-60% of total calories from carbohydrates, preferably from complex carbohydrates, about 10-15% from proteins and 20-30% from both visible and invisible fat.

A balanced diet is one which provides all the nutrients in required amounts and proper proportions. A balanced diet should provide around 50-60% of total calories from carbohydrates, preferably from complex carbohydrates, about 10-15% from proteins and 20-30% from both visible and invisible fat.

Our body relies on vitamins, minerals, carbohydrates, protein and fat for many functions, including growth and development. While healthy eating habits are particularly important for infants and children, whose bodies are still growing, adults rely on nutrients for cell growth, lean tissue development and overall good health. So, the correct option is 'True'.

The linking of two amino acids is accompanied by the loss of a molecule of water. A series of amino acids joined by peptide bonds form a polypeptide chain, and each amino acid unit in a polypeptide is called a residue.

1. A conjugated protein is a protein that functions in interaction with other (non-polypeptide) chemical groups attached by covalent bonding or weak interactions. Some examples of conjugated proteins are lipoproteins, glycoproteins, metalloproteins etc.
2.  Haemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of almost all vertebrates as well as the tissues of some invertebrates. 
3. Haemoglobin contains the prosthetic group known as heme. Each heme group contains an iron ion ($Fe^{2+}$) which forms a coordinate bond with an oxygen molecule ($O _2$), allowing haemoglobin to transport oxygen through the bloodstream. As each of the four protein subunits of haemoglobin possesses its own prosthetic heme group, each haemoglobin can transport four molecules of oxygen. Hence, the example of the conjugated protein is haemoglobin.
   

(a) Simple proteins:-  On hydrolysis they yield only the amino acids and occasional small carbohydrate compounds. Examples are: albumins, globulins, glutelins, albuminoids, histones and protamines.