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Hassan
1. Leaves are attached to the stem at
A. Internode
B. Nodes
C. Apical meristem
D. Internode
2. Velamen takes part in
A. Exchange of gases
B. Transpiration
C. Absorption of moisture from the air
D. Exchange of gases
3.Which plant has all roots?
A. Podostemon
B. Utricularia
C. Lemna
D. Podostemon
4.——— is the edible part of a banana
A. Epicarp and mesocarp
B. Epicarp
C. Mesocarp and less developed endocarp
D. Epicarp and mesocarp
5. Nodulated roots enrich the plant with
A. Proteins
B. Fats
C. Carbohydrates
D. Proteins
6. Bulbils participate in
A. Vegetative reproduction
B. Sexual reproduction
C. Respiration
D. Vegetative reproduction
7. Which root modification does not store food?
A. Stilt
B. Conical
C. Napiform
D. Stilt
8.————– is the characteristic of monocot plants
A. Stilt roots
B. Taproots
C. Fibrous roots
D. Stilt roots
9. Indole-3-acetic acid is the most common naturally occurring plant hormone of _______ class
A. Gibberellin
B. Auxin
C. Ethylene
D. Gibberellin
10.This hormone is not a growth inhibitor
A. Dormin
B. Abscisic acid
C. Ethylene
D. Dormin
11. ___________ is a gaseous plant hormone
A. IBA
B. Ethylene
C. Abscisic acid
D. IBA
12. A widely used rooting hormone is
A. 2,4, -D
B. NAA
C. 2,4,5 – T
D. 2,4, -D
13.The leaf defoliator utilized in the Vietnam war by the USA known as “Agent Orange” was
A. 2,4, -D and 2,4,5 – T
B. Ethylene
C. 2,4, -D and NAA
D. 2,4, -D and 2,4,5 – T
14.Transport of auxin is
A. non-polar
B. symplast
C. apoplast
D. non-polar
15.Formation of the nodule is induced by
A. IAA
B. NAA
C. IBA
D. IAA
16. This is the precursor of Indole-3-acetic acid
A. Methionine
B. Tryptophan
C. Glycine
D. Methionine
17. This bioassay is used to detect the presence of auxin
A. Only tobacco pith culture
B. Tobacco pith culture and Avena curvature test
C. Tobacco pith culture and Split pea stem curvature test
D. Only tobacco pith culture
18. Which of these is not a function of auxin?
A. inducing callus formation
B. inducing dormancy
C. enhancing cell division
D. inducing callus formation
19.Which plant hormone is responsible for saving the crops from falling.
A. Cytokinin
B. Gybberellin
C. Auxin
D. Cytokinin
20.Which of the following hormone is found in gaseous form?
A. Florigens
B. Abscisic Acid
C. Ethylene
D. Florigens
21.Name the plant hormone which is responsible for the ripening of fruits?
A. Ethylene
B. Auxin
C. Traumatic
D. Ethylene
22.Which plant hormone is helpful in making RNA and protein?
A. Gibberellins
B. Auxin
C. Cytokinins
D. Gibberellins
23.Which of the following statement is incorrect?
A. Auxins are the most important plant hormone.
B. Auxins are produced at the region of elongation.
C. Indoleacetic Acid (IAA) is a principal auxin.
D. Auxins are the most important plant hormone.
24.Which plant hormone helps in breaking the dormancy of plant?
A. Auxin
B. Gibberellin
C. Cytokinin
D. Auxin
25.Which hormone is formed in leaves and helps in the blooming of the flowers?
A. Traumatic
B. Auxin
C. Florigens
D. Traumatic
26. Exclusion of plant disease by legislation is known as:
A. Disease resistance
B. Plant quarantine
C. Biological control of plant
D. Disease resistance
27.First of all microscope discovered by:
A. Needham
B. Spallanzani
C. Leeuwenhoeck
D. Needham
28.First plant parasitic bacteria was reported by:
A. T.J. Burrill
B. Needham
C. Louis Pasteur
D. T.J. Burrill
29.First plant parasitic nematode discovered was:
A. Meloidogyne
B. Heterodera
C. Anguina
D. Meloidogyne
30. First plant parasitic nematode was reported by:
A. Needham
B. Spallanzani
C. Cobb
D. Needham
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