Biology Scientific Aptitude and General Awareness Quiz

1. If a bacterium cell divides in every 20 minutes, how many bacteria will be formed in two hours
(A) 4
(B) 8
(C) 16
(D) 64

2. Nitrates are converted into nitrogen by–
(A) Denitrifying bacteria
(B) Nitrifying bacteria
(C) Ammonifying bacteria
(D) Nitrogen fixing bacteria

3. The disease caused by bacteria is
(A) Amoebic dysentry
(B) Arthritis
(C) Beri Beri
(D) Diphtheria.

4. The Bacillus haemophilus influenzae causes–
(A) Influenza
(B) Pneumonia
(C) A form of meningitis in young children
(D) Whooping Cough

5. which of the following is true of viruses
(A) Multiply only in host cell
(B) Behave as if they are plant
(C) Are made up of proteins only
(D) Occur only inside bacteria

6. viruses are essentially made up of-
(A) Proteins and nucleic acid
(B) Starches and carbohydrates
(C) Proteins and lipids
(D) starch, protein and carbohydrates

7. small pox is caused by
(A) Virus
(B) Bacteria
(C) Housefly
(D) Mosquito

8. The virus is made of DNA and proteins, DNA
(A) Head
(B) Tuil
(C) Tail and head
(D) Strand

9. The disease caused by a virus is
(A) Malaria
(B) Influenza
(C) Diphtheria
(D) Syphilis

10. Disease caused by helminth parasite is
(A) Filaria
(B) Diptheria
(C) Tuberculosis
(D) Floriasis

11. Which of the following disease is caused by a
(A) Small pox
(B) Tuberculosis
(C) Yellow fever
(D) Black rust of wheat

12. which of the following is not concerned with virus
(A) viruses are made up of nucleic acid and proteins
(B) Viruses multiply in living host cell
(C) Viruses can be grown in syrupy or sugary liquid
(D) They cannot use oxygen for respiration

13. Approximate percentage of RBC destroyed by malarial parasite in a single day is
(A) 5%
(B) 7%
(C) 15%
(D) 20%

14. store house of malarial parasite in our body
(A) Liver
(B) Spleen
(C) Blood
(D) All

15. The disease not transmitted by housefly is–
(A) Typhoid
(B) Cholera
(C) Yellow fever
(D) Dysentery

16. Excessive intake of polished rice causes deficiency of
(A) Vitamin K
(B) Vitamin D
(C) Vitamin B
(D) Vitamin A

17. other than spreading malaria, Anopheles mosquitoes are also vectors of-

18. Which of the following disease is not caused by virus
(A) Jaundice
(B) Influenza
(C) Typhoid
(D) Mumps

19. Which one of the disease is not communicable
(A) Typhoid
(B) Leprosy
(C) Measles
(D) Leukemia

20. Congenital disease are those which
(A) Are deficiency disease
(B) Are present from time of birth
(C) Are spread from man to man
(D) Occur during life time

21. Bacteria which directly converts atmospheric nitrogen into nitrogen compound are called
(A) Nitrifying bacteria
(B) Nitrogen fixing bacteria
(C) Denitrifying bacteria
(D) Putrifying bacteria