Wednesday, March 22, 2017

BIOLOGY Ch # 06

                                                                  BIOLOGY 
                                                                       Ch # 06

1-which of the following radiations are used to sterilize?
a)alpha rays b)gamma rays c)beta rays d)cosmic rays

2-which is not related to others /
a)hydrogen peroxide b)ethylene c)phenol d)KMnO4

3-E.coli is?
a)aerobic bacteria b)anaerobic bacteria c)facultative bacteria d)obligate bacteria

4-Soil inhabiting bacteria are?
a)saprophyte b)parasites c)photosyntetic d)chemosynthetic

5-misuse of penicilline causes?
a)inflammation b)decoloration of teeh c)deafness d)none

6-thin& flexible spiral bacteria is?
a)sprillium b)spirochete c)vibrio d)all

7-sex pilli are ?
a)gram negative b)conjugation process d)non-helical d)all


8-cynobacteria have not?
a)psii b)psi c)chlorophyll a d)hormogonia 

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