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

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