test for functions summary

>Peptiglycons are found in the cell walls of prokaryotic cells. Proteins are polymers of aminoacids arranged in a specific sequence which is decided by the genetic code present in the DNA molecule. The polypeptide chain in a protein may be straight (primary structure) or may form helical coils (sec..

1. Sample space: Set of all possible outcomes of a random experiment. 2. Event : An event of a random experiment is defined as a subset of the sample space. 3. Exhaustive outcomes: All the outcomes of a random experiment. 4. Random variable: A real valued function ..

>When the body instantly responds to an external stimulus, it is called reflex action. Reflex may be natural or conditioned. Natural reflex does not involve the brain whereas conditioned reflex involves the brain. The path along which the impulses travel in a reflex are called the reflex arc. Chemi..

The grouping of elements with similar properties together and the separation of elements with dissimilar properties is known as classification of elements. The table, which classifies elements on the basis of their properties, is called the periodic table. The earliest classification was into ..

1. If x is a discrete random variable assuming the values x 1 , x 2 , x 3 ,.,x n with probabilities p 1 , p 2 , p 3 ,., p n respectively then (x 1 ,p 1 ), (x 2 , p 2 ),(x n , p n ) defines a probability distribution of X. 2. Let n independent bernoulli trials be performed and X denote..

> = -1 the curves are orthogonal. The condition for the function f(x) to be increasing at x = a if f ' (a) >0. The condition for f(x) to be decreasing at x = a if f ' (a) < 0. A function f(x) is said to be strictly increasing at x = a if f(x) > f(a) whenever x > a in..

Aldehydes, ketones, carboxylic acids and their functional derivatives (aryl halides, acid anhydrides, esters and amides) contain a carbonyl group and are highly polar molecules. They boil at higher temperature than hydrocarbon and weakly polar compounds like ethers, of comparable mo..

>The homeostatic mechanisms work on a negative feedback. In order to ensure the continuation of species, all living organisms exhibit reproduction. The entire cellular information is stored in the DNA which undergoes replication to transfer the information to the successive generations. The surviva..

(ovaries and testes). Some of the important hormones are growth hormone, thyroxine and insulin. Though both nervous and endocrine systems are different, they both basically function by the release of chemicals. Together they bring about a balance or homeostatic state in the body..

Alcohols and Phenols are compounds containing -OH as the functional groups. In alcohols, the -OH group is attached to sp 3 hybridised carbon. In phenols, it is attached to sp 2 hybridised carbon of an aromatic ring. In ethers, oxygen atom is attached to two carbons atoms by two separate s..