MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 How many percent of peptidoglycan is present in gram negative wall 50% 10% 8 - 11% 20 - 80%
2 Capsule is composed of Protein Polysaccharide units Both Lipoproteins
3 Primary function of flagella Hold fast Nutrition Motility None
4 Which one of the following reproduces only in the host cell Bacteria Virus Nostoc Fungus
5 Which of the following is primary function of capsule Transport Support Motility Adhesion
6 Spirochete bacterium is Anaerobic Aerobic Facultative Microaerophilic
7 Which of following is not heat resistant Spores Cysts Both None
8 About how many species of bacteria are known to cause disease in humans 100 1000 200 2000
9 Which is used as source of hydrogen during photosynthesis by autotrophic bacteria CO<sub>2</sub> H<sub>2</sub>O H<sub>2</sub>S HNO<sub>3</sub>
10 Other name of nucleoid is Nuclear body Chromatin body Nuclear region All of these
11 When tuft of flagella is present at each of two poles of bacteria it is called Atrichous Lophotrichous Peritrichous Amphitrichous
12 Sticky characters of bacteria is due to Pilli Capsule Cell wall Cell membrane
13 Which bacteria are more permeable Gram positive Gram negative Equal in Permeability Any of these
14 E. coli are Cocci Bacilli Spiral None of these
15 Cluster of spherical bacteria is Streptococci Streptobaccilli Staphylococci Staphlobacilli
16 Which of the following are used on the surface of living tissues Antiseptics Disinfectants Antibiotics Both a &amp; c
17 Mesosome helps in Respiration Replication Cell division All of these
18 Bacterial endospores function in Survival Storage Reproduction Protein synthesis
19 The largest and most diverse group of photosynthetic bacteria is Green algae Blue green algae Purple sulphur bacteria Purple non- sulphur bacteria
20 Deafness is caused by misuse of Penicillin Euromycin Tetracycline Streptomycin
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