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A homopolymer has only one type of building block called a monomer repeated ‘n’ number of times. A heteropolymer has more than one type of monomer. Proteins are heteropolymers made of amino acids. While a nucleic acid like DNA or RNA is made of only 4 types of nucleotide monomers, proteins are made of

Proteins are building blocks of life. Each protein is made of a long chain of amino acids. Amino acids are made up of an amino-functional group... View Article

Atmosphere traps the sun’s heat near the earth’s surface. This is called:

When atmosphere traps the sun energy near the earth surface then it is known as Natural green house effect.... View Article

Be and Mg do not react with water. This is because of:

Be and Mg are kinetically inert to water due to formation of protective oxide film on the surface of it.... View Article

Is it true that two bodies exert force on each other only when they are in contact?

It is not always necessary that two bodies can exert force on one another only when they are in contact.... View Article

The electronegativity of following elements increases in the order of?

In general, electronegativity increases across a period from left to right and decreases down the group. Si<P<C<N is the correct order... View Article

What will be the flow of water if a cell is placed in a hypotonic solution?

Since in hypotonic solution osmotic pressure is less water will flow into the cell and cell will swell.... View Article

Which of the following is not a function of muscles? (a) Bones delicate the internal organs of the body (b) Bones provide a framework for the attachment of muscles and other tissues (c) Bones serve as a reservoir for calcium and phosphorus. (e) Bones enable body movements

Option(a) Bones delicate the internal organs of the body Protect the delicate internal organs of the body. The bones protect the delicate... View Article

A quantity has a value of -16 m/s2. What does this quantity indicate?

Metre per second square is a unit of acceleration and negative acceleration is known as retardation.... View Article

Name the instrument that is used for listening sounds produced within the body.

Instrument used for listening sounds produced within the body is called Stethoscope used by doctors.... View Article

Benzene diazonium chloride on reaction with phenol in weakly basic medium gives?

Benzene diazonium chloride on reaction with phenol in weakly basic medium gives p-Hydroxyazobenzene which is an orange dye. This is an... View Article

Oxidation of nitrites in presence of potassium permanganate results in formation of:

Oxidation of nitrites in presence of potassium permanganate results in formation of nitrates (NO3-).... View Article

How are unused carbohydrates stored in animals?

Excess carbohydrate in animals is stored in the form of glycogen which serves as an energy reserve.... View Article

On the basis of origin of mouth, animals have been categorized into

On the basis of origin of mouth, animals have been categorized into Protostomia and deuterostomia.... View Article

Calculate the molecular mass a gas if the vapour density of the gas is 22.

Molecular mass = 2 x vapour density = 2 x 22 = 44 Therefore, molecular mass of a gas will be 44.... View Article

What happens to the pressure when the volume of a fixed mass of gas is doubled?

Pressure is inversely proportional to volume. Thus, when volume is doubled, the pressure is halved.... View Article

Which of the following substance is not sour to taste? a. Allum b. Lemon Juice c.Tamarind d.Raw Mangoes

Alum is bitter to taste and soapy to touch. This is because these substances are basic in nature.... View Article

On applying forced vibrations, the resonance wave becomes very fast when

On applying forced vibrations, the resonance wave becomes very fast when damping force is small.... View Article

What is the term used for two solutions having same osmotic pressure at a given temperature?

Two solutions having same osmotic pressure at a given temperature are called isotonic solutions.... View Article

What do you mean by organic farming?

Organic farming is a type of farming which involves use of eco-friendly technologies, for sustainable development. Organic farming helps in... View Article

In heterogenous catalysis of a gaseous reactants over solid catalyst

The reactant gases adsorb on the surface of catalyst and on the surface itself reaction occurs.... View Article

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