structures and function in living systems

Did You Know? - The cells that make up our body are so small that you would fit over 200 of them on the full stop at the end of this sentence. The word cell is derived from the Latin word cellula which means a little room. It was the British botanist Robert Hooke who, in 1664, while examining a sli..

Structure of the Carbonyl Group - The aldehydes and ketones have carbonyl group as the functional group. The carbonyl carbon sp 2 hybridized and thus has three sp 2 hybrid orbitals and one unhybridized p-orbital. It uses sp 2 hybrid orbitals to form three s -bonds one with oxyge..

(a) Formation of a planar hexagonal structure due to overlapping of the sp 2 hybrid orbital of each carbon atom with its neighboring carbon atoms and hydrogen atoms. (b) A unhybridized 2p orbital on each carbon lies perpendicular to the carbon-carbon plane. Out of the three hybrid orbital..

Female Reproductive System in Human - The human female reproductive system performs the following functions: a) Formation of eggs b) Reception of sperms during copulation c) Providing a conducive environment for fertilisation d) Providing shelter and nourishment to the..

Structure and function in living systems Reproduction and heredity Regulation and behavior Populations and ecosystems Diversity and adaptations of organism..

Structure and function in living systems Reproduction and heredity Regulation and behavior Populations and ecosystems Diversity and adaptations of organism..

It has the following features- i) It is made up of four pairs of cranial nerves and three pairs of sacral nerves. ii) The ganglia are far away from the spinal cord and close to or within the effectors. iii) The ganglia are not linked to each other. iv) The pre-ganglionic nerve fibre is longer than..

It is also called the visceral nervous system as it controls the functioning of the visceral (internal) organs. The autonomic nervous system (ANS) consists of two sets of motor neurons and a collection of ganglia. The two sets of neurons are Pre-ganglionic nerve fibres..

Functions of Carbohydrates - Carbohydrates participate in a wide range of functions: Carbohydrates are most abundant dietary source of energy for all organisms. They supply energy and serve as storage form of energy. Carbohydrates such as glucose, fructose, starch, glycogen, etc..