Chap.6 Prokaryotes

1.	Chap No.6 Prokaryotes
2.	How many species of prokaryotes are biologically named?    (a) 500                         (b) 6300 (c) 1630                       (d) 6500	B
3.	The prokaryotes were actually a domain, who was the spearhead of this study? (a) K. Linnaeus                        (b) Carl Woese (c) Louis Pasteur          (d) Robert Koch	B
4.	The bacteria which use H,S are grouped in: (a) Alpha proteobacteria (b) Gamma proteobacteria (c) Delta proteobacteria (d) Epsilon proteobacteria	B
5.	Leprosy is caused by bacteria. (a) Gram positive         (b) Gram negative (c) Mycoplasma           (d) None of these	A
6.	Which of the following is not present in all Bacteria? (a) Slim Capsule          (b) Cell Wall (c) Both of these          (d) Ribosomes	C
7.	Gram staining was discovered by Danish physician in: (a) 1184                       (b) 1980 (c) 1884                       (d) 1880	C
8.	Which of these groups of bacteria are mostly Atrichous? (a) Spicila                    (b) Coccus (c) Bassilus                  (d) All of these	B
9.	The major function of slim capsule is: (a) Pathogenicity          (b) Prevent dehydration (c) Escaping                 (d) All of these	D
10.	Which is not present in photosynthetic bacteria? (a) Photo System II      (b) Photo System (c) Chlorophyl a          (d) Both a ando	D
11.	The process of transformation was experimented by: (a) Frederick Griffith   (b) Zinder (C) Lederberg              (d) All of these	A
12.	Cholera  is caused by: (a) Vibrio                     (b) Bacillus (c) Coccuso                 (d) None of these	A
13.	The test used for diagnosis of typhoid fever (a) Widal test               (b) Endoscopy © Both of these           (d) None of these	A
14.	The vaccine used for T.B is: (a) BCG                       (b) AMG (C) BDD                      (d) All of these.	A
15.	Bacteria Galls is caused by: (a) Xanthomonas Campestris (b) Agrobacterium Tumefaciens (c) Ralstonia Solanacearum (d) Erwinia Carotovora	b
16.	Corynebacteria and lactobacilli are found in human: (a) Oral Cavity             (b) Large Intestine (c) Respiratory             (d) Urino Genital Tract	D
17.	Who discovered conjugation in Bacteria: (a) Friedreich Griffith (b) Lederberg and Tatum (c) Avery, MacLeod and McCarty (d) Zinder and Lederberg	B
18.	Mycoplasma is unique because it lacks: (a) Capsule                  (b) Plasmid (c) Cell Wall                (d) Ribosome's	A
19.	The first bacterium isolated was: (a) Coccus                   (b) Spirillum (c) Spirochete              (d) Bacillus	D
20.	Gram positive bacteria appear: (a) Purple                     (b) Red (c) Pink                                    (d) Blue
21.	Nitrifying bacteria are: (a) Heterotrophic         (b) Chemoautotrophic (c) Symbiotic               (d) Saprotrophic	B
22.	Pilli is rigid tubular appendages in: (a) Gram Positive bacteria (b) Gram Negative bacteria (c) Both a and b (d) Actinomycetes	B
23.	The region where bacterial genome resides istermed as: (a) Nucleus (b) Cytoplasm (c) Nucleoid (d) Ribosome free region	C
24.	Bacterial chromosome is: (a) Single standard and circular (b) Double stranded and circular (C) Single stranded and linear (d) Double stranded and linear	B
25.	Extra chromosomal, circular, double stranded. self-replicating DNA molecule in bacteria is called: (a) Cosmid                   (b) Plasmid (C) BAC                      (d) YAC	B
26.	Membranous infolding in bacteria that initiate DNA replication is: (a) Mesosomes             (b) Ribosome (c) Cell wall     (d) Nucleosome	A
27.	Cyanobacteria have cell wall. (a) Gram +ve               (6) Gram-ve (c) Acid fast                 (d) Cellulose rich	B
28.	Life on earth in its early years was not possible without prokaryotes because they were involved in: (a) Photosynthesis        (b) Respiration c) Soil Forming            (d) Cell division	A
29.	Super kingdom is also called: (a) Protista                   (b) Monera (c) Domain                  (d) Phylum	C
30.	Archaea and bacteria do not share the following characteristics except: (a) Cell Wall Constitution (b) Ribosomal RNA (c) Chemical composition of membrane (d) Autotrophy	D
31.	Methanogenic archaea can survive in conditions which are: (a) Extremely hot         (b) Aerobic (c) Highly saline          (d) Anaerobic	D
32.	Helical heterotrophs bacteria spiraling through environment are called: (a) Chlamydias (b) Deltaproteobacteria (C) Gram-positive bacteria (d) Spirochetes	D
33.	Glycocalyx is: (a) Gram negative bacteria (b) Loose capsule (C) Invaginated cell membrane (d) Appendage	B
34.	An extra-chromosomal DNA ring in bacteria is called: (a) Nucleoid                 (b) Plasmid (c) Pili                          (d) Mesosome	B
35.	In photoautotrophic bacteria the source of hydrogen in photosynthesis is: (a) H2O                       (b) H2S (c) HO                         (d) HS20	B
36.	In bacteria fastest growth occurs in the phase called: (a) Log Phase               (b) Lag Phase (C) Stationary Phase    (d) Decline Phase	A
37.	According to modern trend all living organisms are divided into super kingdom known as domain. (a) 1                             (b) 2 (c) 3                             (d) 4	C
38.	Who confirmed the existence of bacteria? (a) AV Leeuwenhoek  (b) Louis Pasteur (c) Robert Koch                       (d) Robert Brown	B
39.	Endospores are produced in: (a) Gram Positive Bacteria (b) Gram Negative Bacteria (c) Animal Cell (d) Plant Cell	A
40.	Halophiles bacteria live in: (a) Dead Sea (b) Utah's Great Salt Lake (c) Both a and b (d) None of these	C
41.	Which are considered to be the Scavenger of earth? (a) Bacteria                  (b) Fungi (c) Both a and b           (d) Animal	C
42.	Milk is exposed to 72°C for seconds called HTST. (a) 15                           (b) 3 (c) 5                             (d) 10	A
43.	Bacterial blights are caused by: (a) Ralstonia Solanacearum (b) Erwinia Carotovora (C) Agrobacterium Tumefaciens (d) Xanthomonas	D
44.	Flagella are made of: (a) Proteins                  (b) Carbohydrates (c) lipids                      (d) calcium	A