Question 1 :
Which famous biologist showed in the middle of the nineteenth century that beer and butter milk are products of fermentation brought about by years?

Question 2 :
Extract of Tobacco with Mosaic disease was called contagium vivum fluidum by

Question 5 :
Read the following statements and select the correct option:<br/>STATEMENT I: <i>Nostoc </i>and bacteria are prokaryotes.<br/>STATEMENT II: <i>Penicillium </i>and <i>Spirogyra </i>are fungi.<br/>

Question 6 :
____________&#160; is the spread of disease from animal to a person.

Question 7 :
Natural fixation of nitrogen takes place through a non-biological process called ___________.<br/>

Question 8 :
Which of the following substances are produced by an organism to prevent or reduce the spread of micro organisms?<span class="wysiwyg-font-size-medium">i.&#160; Antiseptics<br/><span class="wysiwyg-font-size-medium">ii. Antibiotics<br/><span class="wysiwyg-font-size-medium">iii. Antibodies

Question 9 :
In a mixed culture of slow and fast growing bacteria, penicillin will

Question 11 :
Organisms that cannot be seen by naked eyes is called as

Question 13 :
Salt is used to preserve food by removing .......... from it.

Question 14 :
The gram negative bacteria detect and respond to&#160;chemicals in their surroundings by <br/><br/>

Question 20 :
The process of nitrogen-fixation by bacteria does not take place in the presence of:

Question 24 :
Which substance is produced within an organism to prevent the spread of microorganism?

Question 25 :
Which microbe is used in preparing beverage cider by fermenting juice in apple?

Question 26 :
Parasitic alga is - Tea and Coffee leaves are infected by

Question 29 :
Match the following.<table class="wysiwyg-table"><tbody><tr><td>(a) Potato spindle</td><td>(i) Virus</td></tr><tr><td>(b) Cr- Jacob disease(CJD)</td><td>(ii) Viroid</td></tr><tr><td>(c) Cholera</td><td>(iii) Prion</td></tr><tr><td>(d) Leaf rolling and curling</td><td>(iv) Bacteria</td></tr></tbody></table>

Question 31 :
Which one of the following is not a sexually transmitted disease?

Question 37 :
Complete the following statement by using the correct option from those given below.<br/>Salt is a _____ type of food preservative.<br/>

Question 40 :
The symptoms of food poisoning begin within .......... of eating contaminated food.

Question 42 :
Which of the following statement is wrong in respect to <i>Puccinia graminis</i>?

Question 43 :
The 2005 Nobel prize in physiology/medicine was awarded&#160;to Barry Marshall and Robin Warren of Australia for their&#160;discovery of<br/>

Question 52 :
Assertion: Disseminated tuberculosis is cured by rifampicin. Reason: Tuberculosis is one of the best example of misuse of antibiotics.

Question 55 :
Treatment with oral rehydration solution may be sufficient to treat a person with mild degree of _______<br/>

Question 59 :
Match column I with column II and select the correct option from the codes given below.<table class="wysiwyg-table"><tbody><tr><td>Column I</td><td>Column II</td></tr><tr><td>(a) Pathogen</td><td>(i) The carriers of diseases</td></tr><tr><td>(b) Vaccination &#160; &#160; &#160; &#160;</td><td>(ii) Arrests growth of micro-organisms</td></tr><tr><td>(c) Pasteurization</td><td>(iii) Microbes that cause diseases</td></tr><tr><td>(d) Vector</td><td>(iv) Gives immunity</td></tr></tbody></table>

Question 60 :
Food additives widely used for many years without apparent ill effects are on the .......... list<br/>