GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 172

GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 172

1711). The bacteria responsible for nitrogen fixation is found in the root of
A). Grass
B). Citrus plant
C). Leguminous plant
D). Neem tree

Answer: Leguminous plant


   
1712). Gobar gas contain
A). Methane
B). Methane and Ethane
C). Ethane
D). Petrol gas

Answer: Methane


   
1713). Which of the following is odd one in phloem tissue?
A). Sieve tube
B). Companion cell
C). Phloem fibre
D). Wood fibre

Answer: Wood fibre


   
1714). The type of sexual reproduction that takes place in spirogyra is
A). fragmentation
B). sporulation
C). conjugation
D). fission

Answer: conjugation

   
1715). The plant kingdom is divided into two major divisions
A). monocot and dicot plants
B). bryophytes and pteridophytes
C). crytogams and phanerogams
D). aquatic and terrestial

Answer: crytogams and phanerogams


1716). In the vascular bundle the protoxylems pointing towards the centre are called
A). exarch
B). endarch
C). tetrarch
D). polyarch

Answer: endarch


   
1717). Consider the following statements: 

I) Xylem vessels are seen in angiosperms. 

II) Xylem vessels are not seen in gymnosperms. 

III) Xylem vessels are conducting H20. 

IV) Xylem vessels are giving strength to plants. Of these statements :
A). (I) alone is correct
B). (I), (II), (III) are correct
C). (I), (Ill), (IV) are correct
D). All are correct

Answer: All are correct

   
1718). Consider the following statements : 

Assertion (A) : Fungi get nourishment from the substratum.

Reason (R) : Fungi secrete digestive enzyme on the substratum. Now select your answer according to the coding scheme given below :
A). Both (A) and (R) are true and (R) is the correct explanation of (A)
B). Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C). (A) is true, but (R) is false
D). (A) is false, but (R) is true

Answer: Both (A) and (R) are true and (R) is the correct explanation of (A)


   
1719). Which one of the following is correctly matched?
A). Simple cyme - Musa
B). Cyathium - Euphorbia
C). Simple raceme - Hibiscus
D). Spadix - Crotalaria

Answer: Cyathium - Euphorbia


   
1720). Match List I with List ll correctly and select your answer using the codes given below :
List-I                                     List-I
a) Telocentric                  1) Rod shape with two arms
b) Acrocentrlc                 2) 'L' shape
c) Metacentric                 3) Rod shape with single arm
d) Submetacentric           4) 'V' shape

The below options are given in A B C D order:

A). 3 1 2 4
B). 3 1 4 2
C). 2 1 3 2
D). 1 4 3 2

Answer: 3 1 4 2