Biological Classification Class 11 NEET MCQs | Class 11 Biology MCQ Chapter 2 – Solve Chapter wise NEET Biology Questions and get your instant score
Biological Classification Class 11 NEET Questions - Test 03
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Question 1 |
Mad cow disease in cattle is caused by an organism which has : [NEET 2019]
Free DNA without protein coat | |
Inert crystalline structure | |
Abnormally folded protein | |
Free RNA without protein coat |
Question 2 |
Which of the following statements is incorrect ? [NEET 2019]
Infective constituent in viruses is the protein coat | |
Prions consist of abnormally folded proteins | |
Viroids lack a protein coat | |
Viruses are obligate parasites |
Question 3 |
Lichens indicate SO2 pollution because they [CBSE AIPMT 1989]
show association between algae and fungi | |
grow faster than others | |
are sensitive to SO2 | |
flourish in SO2 rich environment |
Question 4 |
Membrane-bound organelles are absent in [CBSE AIPMT 2010]
Plasmodium | |
Saccharomyces | |
Streptococcus | |
Chlamydomonas |
Question 5 |
Methanogens belong to [CBSE AIPMT 2016]
Eubacteria | |
Archaebacteria | |
Dinoflagellates | |
Slime moulds |
Question 6 |
One of the major components of cell wall of most fungi is [CBSE AIPMT 2016]
Cellulose | |
Hemicellulose | |
Chitin | |
Peptidoglycan |
Question 6 Explanation:
Cell wall of most of the fungi is made up of chitin. The cell wall is a characteristic structure of fungi and it is composed of glucans, chitin and glycoproteins.
Question 7 |
Phenetic classification of organisms is based on [CBSE AIPMT 2004]
observable characteristics of existing organisms | |
the ancestral lineage of existing organisms | |
dendrogram based on DNA characteristics | |
sexual characteristics |
Question 8 |
| Select the correct combination of the statements (a - d) regarding the characteristics of certain organisms [CBSE Mains 2010] |
| (a) Methanogens are Archaebacteria which produce methane in marshy areas |
| (b) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen |
| (c) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose |
| (d) Mycoplasma lack a cell wall and can survive without oxygen |
| The correct statements are |
(b), (c) | |
(a), (b), (c) | |
(b), (c), (d) | |
(a), (b), (d) |
Question 9 |
Azotobacter and Bacillus polymyxa are examples of [CBSE AIPMT 1996)
Decomposers | |
Non-symbiotic nitrogen fixer | |
Symbiotic nitrogen fixer | |
Pathogenic bacteria |
Question 10 |
Adhesive pad of fungi penetrate the host with the help of [CBSE AIPMT 2001]
mechanical pressure and enzymes | |
hooks and suckers | |
softening by enzymes | |
only by mechanical pressure |
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