Here are NEET / EAMCET model questions from Botany. The questions are from the topic Bacteria. Answers / key is given at the end of the questions.
1. Which of the following statements is true regarding Robert Koch? ( )
A. He is one of them who laid foundation for microbiology.
B. He postulated the germ theory of disease.
C. He coined the term “Bacteria.
1) AB
2) BC
3) CA
4) ABC
2. Find the improperly matched pair. ( )
A. Louis Pasteur – bacteria bring changes in nature
B. Anton Von Leewen hoek – observed bacteria but not protozoans.
C. Fredirich Griffith – observed conjugation in bacteria.
D. Lederberg and Zinder – discovered transduction
1) AB
2) BC
3) CD
4) BD
3. Match the following ( )
I II
A. Conjugation i. Streptococcus
B. Transduction ii. Escherichia coli
C. Transformation iii. Salmonella
1) i,ii,iii
2) i,iii,ii
3) iii,ii,i
4) ii,iii,i
4. Assertion: Chemo heterotrophs have unusual adaptation that requires
neither sunlight nor organic nutrients.
Reason: Chemo autotrophs derive energy from oxidation of inorganic
substances and carbon from carbon dioxide. ( )
1) Both A and R are true and R is the correct explanation for A
2) Both A and R are true But R is not the correct explanation for A
3) Only A is true, R is false
4) A is false and R is true.
5. Find the incorrectly matched pairs ( )
A. Photo heterotrophs – Rhodopseudomonas
B. Chemo heterotrophs – Chromatium
C. Saprophytes – Bacillus
D. Chemo heterotrophs – Nitrosomonas
E. Photo autotroph – Beggiatoa
1) ABC
2) BCD
3) CDE
4) BDE
6. Assertion: Plasmids are used in genetic engineering technology.
Reason: Plasmids cannot be manipulated under lab conditions. ( )
1) Both A and R are true and R is the correct explanation for A
2) Both A and R are true But R is not the correct explanation for A
3) Only A is true, R is false
4) A is false and R is true.
7. Which of the following is true regarding Spirillum. ( )
1) Spirillum has less than one complete twist.
2) Spirillum is slender, long, cork-screw shaped.
3) Spirillum has more than one complete twist and helical structure.
4) Spirillum forms long thread like filaments.
8. Where do you place bacteria in Whittaker’s five kingdom classification? ( )
A. Archaebacteria under monera
B. Eubacteria under protista
C. Eubacteria under monera
D. Cyanobacteria under monera
1) B only
2) C only
3) ACD
4) A and C
9. Match the scientist with his contribution to microbiology. ( )
I II
A. Anton von Leewen hoek 1. Bacteria cause infectious diseases
B. Robert Koch 2. Father of bacteriology
C. Louis Pasteur 3. Word ‘Bacteria”
D. Ehrenberg 4. Bacteria Classification
5. Father of Microbiology
1) 1,3,5,4
2) 5,1,2,3
3) 5,3,2,1
4) 2,4,5,3
10. Which of the following is true regarding conjugation in bacteria? ( )
A. Conjugation is a conservative process.
B. Donor cell does not retain copy of genetic material.
C. Conjugation is a non-conservative process
D. Donor cell retains a copy of genetic material.
1) AB
2) BC
3) AC
4) AD
Key: 1-1; 2-2 ; 3-4; 4-4; 5-4; 6-2; 7-3; 8-3; 9-2; 10-4.
