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Home » GAT Subject » Botany Mcqs » Aptitude Test - 5
1.Which of the following is not used as food preservatives?
A. Salt
B. Sugar
C. Vinegar
D. Salt
2.The process by which amount of nitrogen remains the same in the atmosphere is known as
A. fermentation
B. carbon cycle
C. nitrogen cycle
D. fermentation
3. Spyrogyra is
A. An algae
B. A fungi
C. A protozoa
D. An algae
4.Microorganisms are
A. Unicellular
B. Multi-cellular
C. Both
D. Unicellular
5. Penicillium is a
A. Algae
B. Fungus
C. Bacteria
D. Algae
6. Malaria Is caused by
A. Protozoa
B. Virus
C. Algae
D. Protozoa
7. Rhizobium becteria
A. Help in digestion
B. Help in nitrogen fixation
C. Cause diseases
D. Help in digestion
8.Scientist who discovered fermentation is
A. Alexander Fleming
B. Louis Pasteur
C. John Mendal
D. Alexander Fleming
9. Water is absorbed by
A. Root cap
B. Root apex
C. Root hairs
D. Root cap
10.A root hair does not contain
A. Vacuole
B. Chloroplast
C. Cell wall
D. Vacuole
11.The outer covering of the epiphytic root is
A. Rhizophore
B. Osmophore
C. Pneumatophore
D. Rhizophore
12. Vivipary is the characteristic of
A. Mesophytes
B. Xerophytes
C. Hydrophytes
D. Mesophytes
13.Turmeric is a stem because
A. It grows parallel to the soil surface
B. It stores food material
C. It has chlorophyll
D. It grows parallel to the soil surface
14.———– plants have root pockets
A. Opuntia
B. Capparis
C. Banyan
D. Opuntia
15. Leaves are attached to the stem at
A. Internode
B. Nodes
C. Apical meristem
D. Internode
16. Velamen takes part in
A. Exchange of gases
B. Transpiration
C. Absorption of moisture from the air
D. Exchange of gases
17.Which plant has all roots?
A. Podostemon
B. Utricularia
C. Lemna
D. Podostemon
18.——— is the edible part of a banana
A. Epicarp and mesocarp
B. Epicarp
C. Mesocarp and less developed endocarp
D. Epicarp and mesocarp
19. Nodulated roots enrich the plant with
A. Proteins
B. Fats
C. Carbohydrates
D. Proteins
20. Bulbils participate in
A. Vegetative reproduction
B. Sexual reproduction
C. Respiration
D. Vegetative reproduction
21. Which root modification does not store food?
A. Stilt
B. Conical
C. Napiform
D. Stilt
22.————– is the characteristic of monocot plants
A. Stilt roots
B. Taproots
C. Fibrous roots
D. Stilt roots
23. Indole-3-acetic acid is the most common naturally occurring plant hormone of _______ class
A. Gibberellin
B. Auxin
C. Ethylene
D. Gibberellin
24.This hormone is not a growth inhibitor
A. Dormin
B. Abscisic acid
C. Ethylene
D. Dormin
25. ___________ is a gaseous plant hormone
A. IBA
B. Ethylene
C. Abscisic acid
D. IBA
26. A widely used rooting hormone is
A. 2,4, -D
B. NAA
C. 2,4,5 – T
D. 2,4, -D
27.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
28.Transport of auxin is
A. non-polar
B. symplast
C. apoplast
D. non-polar
29.Formation of the nodule is induced by
A. IAA
B. NAA
C. IBA
D. IAA
30. This is the precursor of Indole-3-acetic acid
A. Methionine
B. Tryptophan
C. Glycine
D. Methionine
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