glucose molecule/ structural organisation level

Living Beings are Organised - Organisation refers to a kind of structure or system or situation where the smaller components become arranged into larger ones in a hierarchical order of complexity, to co-ordinate with one another in performing common functions or achiev..

The molecules of various chemical substances in a specific proportion become organised into protoplasm - the physical basis of life. The protoplasm gets organised into cells, which represents the structural and functional unit of life. A living organism may ..

The three dimensional structure of a protein is known as tertiary structure of a protein. This is a compact structure i.e., further folding of the secondary structure. It coils and folds in such a way that the hydrophobic side chains are held interior and the..

The characteristic structure of an ecosystem is obtained by the systematic physical organisation of the abiotic and biotic components of that particular ecosystem. The two main structural features of any ecosystem are its 'species composition' and 'stratification'. An ..

It is formed by the combination of two hydrogen atoms. Each hydrogen atom has one electron in 1s-orbital and, therefore, there are two electrons in hydrogen molecule. Both these electrons are to be accommodated in the lowest energy molecular orbital. According to Pauli's exclusion princip..

Nitrogen Molecule (N 2 ) - N 2 molecule has 14 electrons. fig 1.19 - Molecular orbital energy level diagram for N 2 moleculeThe molecular orbital electronic configuration of the molecule is: N 2 : KK( s 2s) 2 ( s *2s) 2 ( p 2p x ) 2 ( p 2p y ) 2 ( s..

Therefore, oxygen molecule has 16 electrons. In the formation of molecular orbitals, the electrons in the inner shells are expressed as KK denoting ( s 1s) 2 ( s *1s) 2 .The remaining 12 electrons are filled in molecular orbitals. fig 1.20 - Molecular orbital energy h..

Each helium atom has two electrons in 1s-orbital and therefore, there are four electrons in He 2 molecule. These electrons will be accommodated in s i 1 ls and s *1s MOs as shown below. fig 1.18 - Molecular orbital energy level diagram for He 2 molecule (hypothetical)T..

This is formed by the combination of hydrogen atom containing one electron and hydrogen ion having no electron. Therefore, this ion has only one electron. fig 1.17 - Molecular orbital energy level diagram for H 2 + ion The positive value of bond order indicates that the mol..

A cell is regarded as the structural and functional unit of life. Thus a living organism must consist of at least one cell. Cells combine to form higher units, the tissues, which in turn come together and constitute the next higher unit, known as the organs. The organs occur in groups, to..