JOIN ADRE 2.0 Telegram Group

Bacteria MCQs | Bacteria General Awareness Multiple Choice Questions(MCQs) & Answers

Questions
1 All the bacteria fix nitrogen except
A Rhizobium
B E.coli
C Azotobacter
D cyanobacteria

Answer: E.coli
2 The iodine used in Gram staining serves as a
A Chelator
B Catalyst
C Mordant
D Cofactor

Answer: Mordant
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

3 The ability of bacteria to change their morphological form frequently is termed as
A Lysogeny
B Pleomorphism
C Alteromorphism
D None Of These

Answer: Pleomorphism
4 Surface appendage of bacteria meant for cell-cell attachment during conjugation is
A Pili
B Flagella
C Spinae
D Cilia

Answer: Pili
5 Bacterial chromosome is
A Single Stranded And Circular
B Double Stranded And Circular
C Single Stranded And Linear
D Double Stranded And Linear

Answer: Double Stranded And Circular
6 The region where bacterial genome resides is termed as
A Nucleus
B Cytoplasm
C Nucleoid
D Ribosome Free Region

Answer: Nucleoid
7 Membraneous infolding in bacteria that initiate DNA replication is
A Mesosomes
B Carboxysome
C Magnetosome
D Nulcleosome

Answer: Mesosomes
8 Mark the common feature between eukaryotes and prokaryotes.
A Shape of DNA
B Number of chromosomes
C A prokaryotic cell is similar to a eukaryotic organelle
D Cell wall

Answer: A prokaryotic cell is similar to a eukaryotic organelle
9 The largest bacteria which can be visible by unaided eye is_______
A Thiomargarita namibiensis
B Lactobacillus
C Mycoplasma
D Pseudomonas

Answer: Thiomargarita namibiensis
10 Name the scientist who proposed the phylogenetic tree for living things.
A Carlo Urbani
B Louis Pasteur
C Robert Koch
D Carl Woese

Answer: Carl Woese
11 Which of the following is NOT the basic shape of the bacteria?
A Rod shape
B Square shape
C Comma shape
D Spiral shape

Answer: Square shape
12 Name the acid present in the cell wall of bacteria which helps in retaining its color during the acid-fast test?
A Mycolic acid
B Teichoic acid
C Malic acid
D Tartaric acid

Answer: Mycolic acid
13 LPS (endotoxin) consist of
A Lipid A
B Core Polysaccharide
C O Antigen
D All Of The Above

Answer: All Of The Above
14 Which of the following is true about structure Gramm negative cell wall
A Thick Peptidoglycan Layer
B Periplasmie Space Is Absent
C Include Outer Membrane
D All Of The Above

Answer: Include Outer Membrane
15 Gram negative microorganisms
A Violet Color
B Pink-Red Color
C Green Color
D Black Color

Answer: Pink-Red Color
16 Gram’s staining consist of
A 2 stages
B 3 stages
C 4 stages
D 5 stages

Answer: 4 stages
17 The spore protects the genomic DNA from
A Intense Heat
B Radiation
C Chemical Agents
D All Of The Above

Answer: All Of The Above
18 The spore has
A Inner Membrane
B Two Peptidoglican Layers
C Outerkeratin- Like Coat
D All Of The Above

Answer: All Of The Above
19 To demonstrate volutin granules used
A Anjesky’ s staining
B Loefler’s technique
C Burri’s technique
D Morozov’ s staining

Answer: Loefler’s technique
20 To demonstrate capsule used
A Anjesky’ s staining
B Loefler’s technique
C Burri’s technique
D Morozov’ s staining

Answer: Burri’s technique

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
Advertisement