Which one is the most abundant protein inthe animal world?
Collagen is the most abundant protein of animal world.Rubisco (ribulose biphosphte carboxylase - oxygenase) is not only the most abundant protein in plants butalso the whole biosphere.
Lipids are insoluble in water because lipid molecules are
Water attracting molecules are called hydrophilic. Water repelling molecules are called hydrophobic. Amino acids carry simultaneously positive and negative charges. Such molecules are called zwitter ions. Lipids are compounds of C, H, O but the ratio of H and O is more than 2 : 1 that is the ratio of oxygen is lesser than carbohydrates. Lipids are insoluble in water but soluble in non-polar solvents such as benzene,chloroform etc.Commonest lipid found in a cell is phospholipid. It contains a hydrophilic (polar) head and a hydrophobic(non- polar tail).
Most diverse macromolecules, found in the cell both physically and chemically are
Proteins are polymers of amino acids. There are only 20 amino acids which can be arranged in different orders in a polypeptide chain to form a wide array of proteins.
Xylem functions as a conducting tissue for water and minerals from _________to the ______and__________.
Xylem is acomplex permanent tissue mainly responsible for conduction of water and minerals from the roots to the top of plants (unidirectional).
Branches of botany dealing withthe internal organization of plants known as
Which one is not a carbohydrate?
ATP molecule is a
Cell wall in higher plants is made up of
Which of the following is responsible for mechanical supportand enzyme transport ?
Cells which take part in secondary growth are named as