The protein that involves in the transportation of organic compounds through phloem is

Which of the following is not correct?

Fats are solid due to presence of

Read the following statements and choose the correct option: (i) The three essential fatty acids are Linoleic acid, Linolenic acid and Palmitic acid. (ii) Flavanoids and alkaloids are secondary metabolites. (iii) Carbohydrates, lipids and proteins are primary metabolites. (iv) The components common to nucleoside as well as nucleotides are sugar and nitrogen bases. (v) Thymidine is a nucleotide.

Which of the following is correct for the compounds A and B?

ame the enzymes that catalyze removal of roups from substrates by mechanism other than hydrolysis leaving double bonds

Phosphodiester bond is present in

Which of the following is a homopolysaccharide?

All the macromolecules are the result of the process of polymerisation, a process in which repeating subunits termed monomers are bound into chains of different lengths except:

Most essential fatty acid is

Sulpha drugs control bacterial pathogens by

How many of the following statements are false: (i) Haemoglobin is a conjugated protein. (ii) At Vmax, all enzymes are saturated with substrate. (iii) In non competitive inhibition, substrate and inhibitor are structurally dissimilar. (iv) In non competitive inhibition, substrate and inhibitor bind to active site. (v) In competitive inhibition, inhibitor bind mostly site other than active site.

Which of the following statement is incorrect?

Maurice Wilkins and Rosalind Franklin determine structure of DNA using technique called

An enzyme which is devoid of its either prosthetic group or co-enzyme is designates as

_________ is the most abundant protein in animal world and _______ is the most abundant protein in the whole biosphere.

Match the column:

Column A	Column B
a. Transferase	Kinase
b. Lyase	Aldolase
c. Ligase	RNA ligase
d. Hydrolase	Lipase

On losing the carboxyl group as carbon dioxide amino acids form biologically active

The given amino acid is a neutral amino acid, then A, B and C are formed respectively in:

Two chains of amino acids in an insulin molecule are held together by

Select the number of false statements regarding Watson and Crick’s double helical model of DNA: (i) Proposed in 1953 and got Nobel Prize in (ii) Made up of two polynucleotide chains. (iii) They are complementary and antiparallel. (iv) Backbone is sugar and phosphate linked by 3’ – 5’ phosphodiester bond. (v) Nitrogen bases are projecting inside. (vi) Diameter is 20 Å. (vii) Pitch is 34Å. (viii) At each step of ascent the strand turns 32°.

Cellulose, the most important constituent of plant cell wall is made of

Identify the amino acid with hydroxymethyl as its R group

Which of the following vitamins is a coenzyme for amino acid and fatty acid metabolism

Nickel contributes to the formation of one of the following

Which of the following elements is present in higher proportion (% weight of the total) in earth’s crust with respect to the average composition of a human body

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

Heating may cause denaturion of enzyme or protein mainly by damaging its

Nickel contributes to the formation of one of the following

Hilum the centre of starch grain is made up of

Cheese is a ____________.

In the modern system of nomenclature, which one of the following occupies 1st position?

A large and important group of compound which can be made by repetition of simple isoprenoid units, is called

About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen oxygen and

NAD, NADH and NADP are

From the following groups, select the one which has only secondary metabolites?

Glucose is also called

Keratin have larger amount of

Cyanide kills an animal by:

Which of the following are homopolymers? (i) Inulin. (ii) Insulin. (iii) Chitin. (iv) Cellulose. (v) GLUT – (vi) Glycogen.

Most of glycogens upon mixing with iodine gives a color which is

Most simpler sugars which are sweet and highly soluble in water are called

Molecular structure of amylopectin is

Which of the following elements is present in higher proportion [% weigh of the total] in Earth’s crust with respect to the average composition of a human body?

The linkage that joins two adjacent nucleotides in RNA is

Which of the following options consist of non-essential amino acids only?

Insulin is a primary structure of an amino acid which has two chains containing

Excess carbohydrates and proteins are stored in the body as

Which one of the following is correct sequence of carbohydrates in increasing order of complexity of chemical structure?

The low melting area of DNA is due to: