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Monday, January 17, 2022

Std-11Sci Sub-Biology 2nd Unit test examination

Burlington junior college 
Sub-Biology.            Class-11Sci 
Marks-20

Q.1) Multiple choice question: [03]
       1). Lipids associated with cell membrane are  ____________.
             a) spingomyelin                    c) isoprenoids 
             b) phospholipid            d) cholesterol
      2) Amino acid  in a polypeptide are joined by ______ bond 
              a) Di-sulphide bond               b) glycosidic
              c)  hydrogen bond                 d) non of these 
       3) de-amination is a process called _________.
               a) glycolysis                                    c) protein metabolism 
               b) amino acid metabolism              d) lipid metabolism

Q.2 Answer the following Question:                      [03]
i.  what is herbarium ?
ii. what is museum ?
iii.  define metabolism

  Attempt any Three                                                                           [06] 
03) Explain the structure of protein ?
04) Explain the structure of DNA ? 
05) distinguish between ammonotelism and ureatelism 
07)  explain the structure of lipid

 
Attempt                            [04] 
08)  sketch and labelled diagram of human kidney 
09) explain polysaccharide with mono saccharide and di-saccharide  

Attempt any One: [04] 
11) Explain enzyme and its classification 
12) Explain lock and key mechanism of an enzyme and effect of temperature on enzyme