1. A nail was driven into the trunk of a tree at a point 1.5 m from the soil level. After 3 years the nail will ?
- (A) Move up
- (B) Remain where it was
- (C) Move down
- (D) Move side ways
2. In onion underground swollen edible portion is-
- (A) Underground stem
- (B) Root
- (C) Rhizome
- (D) Tuber
3. In sweet potato food is stored in-
- (A) Roots
- (B) Stem
- (C) Leaves
- (D) Petiole
4. Buds typically are found-
- (A) At the tips of branches and roots
- (B) At the base of leaves only
- (C) Both at the base of leaves and at the tips of branches
- (D) At the apex of axil of leaves
5. Function of stem is-
- (A) Conduction of water and minerals
- (B) Storage
- (C) To produce branches and leaves
- (D) All the above
6. Potato tuber is a modified-
- (A) Bulb
- (B) Root
- (C) Stem
- (D) Stolon
7. Flower is considered a modified shoot because ?
- (A) In some flowers thalamus becomes elongated and show distinct nodes and internodes
- (B) Flowers aggregate to form inflorescence
- (C) Epicalyx is present in some flowers
- (D) Essential organs are present in some flowers
8. Plant which burries its own seeds in the soil
- (A) Potato
- (B) Sweet potato
- (C) Onion
- (D) Ground nut
9. Sweet potato is a modification o
- (A) Root
- (B) Stem
- (C) Bud
- (D) Flowering axis
10. Ginger is a stem and not a root because-
- (A) It stores food
- (B) It is bitter in taste
- (C) It has nodes and internodes
- (D) It is non green in color
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11. The plant that stores its food reserves in the leaves-
- (B) Mango
- (A) Sweet potato
- (C) Sugarcane
- (D) Onion
12. Bacteria was first discovered by
- (A) Robert Koch
- (B) L. Pasteur
- (C) Robert Hooke
- (D) A. V. Leeuwenhoek
13. Bacteria are considered to be the plant because
- (A) Have a rigid cell wall
- (B) Cannot move
- (C) Are present everywhere
- (D) Can multiply by fission
14. In bacteria--
- (A) DNA is enclosed in nucleus
- (B) DNA is 4 in number in nucleus
- (C) DNA is double stranded and ringed (circular)
- (D) DNA is scattered
15. Which of the following is a bacterial disease
- (A) Measles
- (B) Small pox
- (C) Rabbies
- (D) Tuberculosis
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16. Bacterial cell divides in every minute. It takes one hour to fill a cup. How much time will take to fill half the cup ?
- (A) 59 minutes
- (B) 30 minutes
- (C) 60 minutes
- (D) 29 minutes
17. Antibiotics are mostly obtained from--
- (A) Bacteria (Actinomycetes)
- (B) viruses
- (C) Angiosperms
- (D) Fungi
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18. Antibiotics cure disease by-
- (A) Competitive inhibition organism
- (B) fighting with the disease causing organism
- (C) Turning the pathogen out of the body
- (D) Removing pain
19. In bacteria the nuclear material is-
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- (A) Nucleic acid and histone protein
- (B) Nucleic acid and cytoplasm
- (C) Nucleic acid only
- (D) All of the above
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