Biology - MOST IMPORTANT UP PCS Previous Year Questions

Which one of the following is NOT correctly matched?
(a) Desalination - Sea water
(b) Reverse osmosis - Potable water
(c) Denaturation - Proteins
(d) Pasteurisation - Tea

Nitrogen fixing bacteria make combination with cells of the roots of

Tulsi plant has medicinal values due to the presence of the following

Which of the following organisms has white blood?

Which of the following substances is NOT a protein?

Which of the following glands in human body acts both as a endocrine gland as well as an exocrine gland?

Use of polished rice in human diet causes the following disease

Which of the following pairs is NOT correctly matched?
(Vitamin) (Rich Source)

Given below are two statements, one labelled as assertion (A) and the other as Reason (R)
Assertion (A) : Most of the vitamins are not synthesised in human body.
Reason (R) : Human organs synthesise only essential micronutrients.
Select the correct answer from the codes given below :

Which of the following statements about enzymes is/are correct?

1. They are biocatalysts.
2. They perform their action on the site where they are produced
   Select the correct answer from the codes given below

Mother’s milk provides almost complete diet to the new-born, but it lacks the following

Which one of the following is the well known example of bioindicator of air pollution?

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R).
Assertion (A) : Maximum number of the species of butterflies are found in tropical countries.
Reason (R) : Butterflies can not tolerate low temperatures.
Select the correct answer using the codes given below :

Which of the following is associated with biological nitrogen fixation?

Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I
A. National Programme for control of Blindness
B. Integrated Child Development Scheme
C. National Leprosy Eradication Programme
D. National Rural Health Mission

List-II (Year)

1. 1975
2. 1976
3. 2005
4. 1983

Which of the following natural substances contains iron (Fe)?

Which of the following substances is obtained from a tree?

Change in the base sequence within a gene is called :

In human body, the digestion of protein begins in which of the following organs?

Use of polished rice in human diet causes following diseases :