EAMCET Botany – Page 2

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.

1) The condition where Pollengrains of one flower reach the stigma of the another flower of another plant belonging to the same species is calledäéπ
1. Self pollination 2. Autogamy 3. Geitonogamy 4. Xenogamy

2) Cleistogamous flowers are underground and Chasmogamous flowers are developed aerially in
1. Helianthus
2. Cestrum nocturnum
3. Commelina benghalensis
4. Scrophularia

3) In Gossypium Self pollination is prevented by one of the following conditioní
1. Dicliny 2. Protandry 3. Protogyny 4. Herkogamy

4) Assertion (A): The type of pollination which occurs in gymnosperms is called direct pollination.
Reason (R): In gymnosperms pollengrains fall on the Stigma.
1. Both A and R are true. R is the correct explanation of A.
2. Both A and R are true. R is not the Correct explanation of A.
3. A is true and R is false
4. A is false and R is true

5) Assertion (A): The flowers of Scrophularia though they are bisexual cross pollination is favoured and self pollination is avoided.
Reason (R): Flowers of Scrophularia exhibit protogyny.
1. Both A and R are true and R is the correct explanation of A
2. Both A and R are true and R is not the correct explanation of A.
3. A is true and R is false
4. A is false and R is true

6) The arrangement of male and female reproductive organs at different levels in a bisexual flower is called-
1. Dichogamy 2. Protogyny 3. Herkogamy 4. Self sterility

7) Dimorphic flowers are seen in one of the following pair
1. Lythrum and Oxalis
2. Lythrum and Passiflora
3. Oxalis and Gloriosa
4. Primula and Oldenlandia

8) Pollen of the some plants may cause poison which may leads to the withering of flowers is seen in one of the following
1. Mimulus 2. Oldenlandia 3. Orchids 4. Hibiscus

9) Study the following lists.
List-1 List-2
A. Dicliny I. Helianthus
B. Protandry II. Lythrum
C. Protogymy III. Vallisneria
D. Triheterostyly IV. Solanum
V. Passiflora
The correct match is:
A B C D
1. II, V, III, I
2. III, I, IV, II
3. V, IV, III, II
4. I, III, IV, V

10) Pick out the correct statement from the following
1. In flowers of Hibiscus stigmas and stamens bend in opposite direction.
2. Flowers of Oldenlandia exhibit pollen prepotency
3. In flowers of Caltha stamens and ovary mature at the same time.
4. The flowers of Martynia are associated with self sterility.

11) Identify the correct match from the following
1. Self Sterility – Abutilon
2. Sensitive Stigmas – Primula.
3. Protandry – Solanum
4. Pollen Prepotency – Martynia.

12) The condition where the stigmas bend in opposite direction to the stamens in a flower is seen in-
1. Gossypium 2. Solanum 3. Dolichos 4. Gloriosa

13) It is one of the mechanism seen in bisexual flowers where the
reproductive organs mature at different times to promote cross pollination by preventing self pollination is-
1. Herkogamy 2. Dichogamy 3. Homogamy 4. Pollen Prepotency

14) Species of Ranunculus are characterised by the presence of one of the following contrivance which favour the self pollination.
1. Self sterility 2. Dichogamy 3. Homogamy 4. Herkogamy

15) Self pollination is prevented and cross fertilization is favoured in flowers of Dolichos by
1. Self sterility 2. Pollen prepotency 3. Herkogamy 4. Homogamy

16) Study the following lists.
List-1 List-2
(Pollination) (Taxon)
A. Anemophily I. Begnonia
B. Epihydrophily II. Zostera
C. Hypo hydrophily III. Vallisneria
D. Ornithophily IV. Oryza
V. Aroids
The correct match is:
A B C D
1. IV, III, II, I
2. III, II, I, V
3. V, IV, III, II
4. I, IV, II, III

17) Which of the following contrivance favours the self pollination in disc florets of Tridax when cross pollination fails to occur?
1. Homogamy 2. Safety Mechanism 3. Cleistogamy 4. Dicliny

KEY : 1.4 2.3 3.2 4.3 5.1 6.3 7.4 8.3 9.2 10.3 11.1 12.4 13.2 14.3 15.2 16.1 17.2

NEET – EAMCET Botany Model Questions

EAMCET Botany Important Questions with Key