Tuesday, 6 October 2015

Biology Online Test 2017 Free Online Biology Quizzes with Answers

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Biology Online Test 

Candidates who are looking for Online Biology Quizzes with Answers are at correct place. Here on this page we are providing Biology Online Test.Contenders may go through the uttered below section.

Biology is very interesting subject in which we learn about life and living organisms as their structure, Function, Growth, evolution and taxonomy etc. So to prepare Biology we need to understand the type of questions.

Biology Quizzes with Answers

1. Ordinary table salt is sodium chloride. What is baking soda?
  • Sodium bicarbonate  
  • Potassium chloride  
  • Potassium carbonate  
  • Potassium hydroxide  

  • 2. Ozone hole refers to
  • decrease in thickness of ozone layer in stratosphere  
  • hole in ozone layer  
  • decrease in the ozone layer in troposphere  
  • increase in the thickness of ozone layer in troposphere  

  • 3. Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of Indi All these belong to
  • angiosperms  
  • monocotyledons  
  • gymnosperms  
  • dicotyledons  

  • 4. Pollination is best defined as
  • germination of pollen grains  
  • growth of pollen tube in ovule  
  • visiting flowers by insects  
  • transfer of pollen from anther to stigma  

  • 5. Plants receive their nutrients mainly from ?
  • chlorophyll  
  • atmosphere  
  • light  
  • soil  

  • 6. Movement of cell against concentration gradient is called ?
  • active transport  
  • osmosis  
  • diffusion icon  
  • passive transport  

  • 7. Photosynthesis generally takes place in which parts of the plant ?
  • steam and leaf  
  • Roots and chloroplast bearing parts  
  • Leaf and other chloroplast bearing parts  
  • Bark and leaf  

  • 8. Ques-8). Most fish do not sink in water because of the presence of swim bladder air bladder air sacs air in spongy bones
  • B.II and III are correct  
  • A.I and II are correct  
  • C.III and IV are correct  
  • D.I, II, III and IV are correct  

  • 9. Plants synthesis protein from ?
  • starch  
  • sugar  
  • fatty acids  
  • amino acids  

  • 10. Plants absorb dissolved nitrates from soil and convert them into ....
  • free nitrogen  
  • urea  
  • ammonia  
  • proteins  

  • 11. Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with ?
  • all gymnosperms, except conifers  
  • only angiosperms  
  • angiosperms and all gymnosperms except conifers  
  • only conifers  

  • 12. One of the following is not a function of bones......
  • Protection of vital organs  
  • Secretion of hormones for calcium regulation in blood and bones  
  • Place for muscle attachment  
  • Production of blood corpuscles  

  •  13. Plants absorb most part of water needed by them through their
  • embryonic zone  
  • root hairs  
  • growing point  
  • zone of elongation  

  • 14. Photo-oxidation is ????
  • photorespiration  
  • All of the above  
  • light and oxygen induced breakdown  
  • photolysis  

  • 15. Process of cell division can take place by
  • heterosis  
  • fusion  
  • mitosis  
  • None of these  

  • 16. Most highly intelligent mammals are
  • whales  
  • kangaroos  
  • dolphins  
  • elephants  

  • 17. Plant development is influenced by
  • quality of light only  
  • quality, quantity and duration of light  
  • quality and quantity of light  
  • quality and duration of light  

  • 18. Prokaryotic cells lack ....
  • membrane bound by organelles  
  • nuclear membrane  
  • nucleolus  
  • All of these  

  • 19. Photosynthesis takes place faster in ?
  • white lightm  
  • yellow light  
  • red light  
  • darkness  

  • 20. Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by
  • Robert Hooke  
  • Rudolf Virchow  
  • Robert Brown  
  • Theodore Schwann  

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