Biology Objective Questions and Answers – Biology Quiz

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

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

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

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-
  • (A) Nucleic acid and histone protein
  • (B) Nucleic acid and cytoplasm
  • (C) Nucleic acid only
  • (D) All of the above

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