AIPMT-PRELIMS Zoology Biomolecules Class 11 Questions

Which one out of A – D given below correctly represents the structural formula of the basic amino acid?

The curve given below show enzymatic activity with relation to three conditions (pH, temperature and substrate concentration). What do the two axises(x and y) represent?

Which of the following is water-soluble?

Which one of the following is a fat-soluble vitamin and its related deficiency disease?

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

An organic substance bound to an enzyme and essential for its activity is called:

Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain?

Which of the following is the simplest amino acid?

Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these:

Which of the following statements regarding enzyme inhibition is correct?

The catalytic efficiency of two different enzymes can be compared by the:

The richest sources of vitamin B₁₂ are :-

The following ratio is generally constant for a given species :-

Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease :

Which one of the following pairs is not correctly matched ?

Chargaff's rule states that in an organism:

The chief advantage of encystment to an Amoeba is :-

Which is a reducing sugar :-

Continuous bleeding from an injured part of body is due to deficiency of :-

In a DNA percentage of thymine is 20% then what is the percentage of guanine :-

Collagen is :-

Which one correctly matched :-

Most abundant organic compound on earth is

What is true for Archaebacteria :-

In plants inulin and pectin are

Which factor is responsible for inhibition of enzymatic process during feed back :

Similarity in DNA and RNA :

Length of one loop of B⁻ DNA :

ATP is :

Role of enzyme in reactions: