Take Quiz to Perfect Your True or False
Write whether true or false.
1. The decaying process of c-14 occurs continuously in dead organisms only.
Ans. True
2. Prokaryotic cells divide through mitosis or meiosis.
Ans. False
3. Pollen tube reaches the embryo sac via style.
Ans. True
4. Sometimes twins are genetically different.
Ans. True
5. Pollen grains from anther are transferred on the stigma.
Ans. True
6. Environment is a broad concept.
Ans. True
7. The power produced from solar cells is a DC.
Ans. True
8. Electrical energy can be generated through wind
Ans. True
9. While producing hydroelectric energy , there is no pollution.
Ans. True
10. In a windmill, the rotating blades drive the turbine and the turbine in turn drives the generator to generate electricity.
Ans. True
11. In nuclear power plants, the chain reaction can not be controlled.
Ans. False
12. The disposal of nuclear waste safely is a big challenge before scientists.
Ans. True
13. Efficiency of power generation plants based on energy of natural gas is higher than that of the power generation plant based on coal.
Ans. True
14. In a hydroelectric power plant, the potential energy in water stored in a dam is converted into kinetic energy.
Ans. True
15. In nuclear power plants turbines working on solar panels are used.
Ans. False
16. The potential difference available from a solar cell depends on its area.
Ans. False
17. Tentacles are used for capturing the prey.
Ans. True
18. Petromyzon is an endoparasite.
Ans. False
19. Locomotion of starfish takes place through pseudopodia.
Ans. False
20. Classification of animals makes it easy to study the vast variety of animals.
Ans. True
21. Shelf life of yogurt can be increased by pasteurization.
Ans. True
22. Vinegar is used to bring sweetness in food products.
Ans. False
23. Methane gas is produced by microbial oxidation of industrial waste.
Ans.False
24. Spinosad is a biopesticide.
Ans. True
25. Sulphuric acid is a source of energy for some species of bacteria like Acidophilum.
Ans. True
26. Microbes have the natural ability of decomposing the man made chemicals.
Ans. True
27. Antibiotics cannot be obtained from a variety of bacteria and fungi.
Ans. False
28. Non-genetic technology involves mutations in cell genes.
Ans. False
29. Earlier insulin was being collected from the pancreas of horses.
Ans. True
30. Various essential elements like N, P, K are made available to crop by earthworms and fungi.
Ans. True
31. We don’t have any tradition of curing disease with the help of natural resources.
Ans. False
32. Malaria is caused due to genetic disorder taking place in liver cells.
Ans. False
33. Pseudomonas bacteria can separate the hydrocarbon and oil pollutants from soil and water.
Ans. True
34. A gene isolated from the bacterium Bacillus thuringiensis and is integrated with the genome of cotton.
Ans. True
35. High class of varieties of crops have been developed through the techniques of organ transplantation.
Ans. False
36. Genetically modified crops have low resistance for disease.
Ans. False
37. Vaccines produced with the help of biotechnology do not remain active for a longer duration.
Ans. False
38. Children who watch cartoon films may imitate the characters of those films.
Ans. True
39. Tobacco chewing does not cause a carcinogenic effect on mouth and lungs.
Ans. False
40. Stress increases due to more laughing.
Ans. False