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Cellular Structure Of Bacteria MDCAT MCQs with Answers

Cellular Structure Of Bacteria MDCAT MCQs

Welcome to the Cellular Structure Of Bacteria MDCAT MCQs with Answers. In this post, we have shared Cellular Structure Of Bacteria Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Biology offers a chance to enhance your knowledge regarding Cellular Structure Of Bacteria MCQs in this MDCAT Online Test.

Bacterial cell walls are primarily made of which substance?
a) Cellulose
b) Chitin
c) Peptidoglycan
d) Phospholipids

Answer
c) Peptidoglycan

What is the function of the bacterial flagellum?
a) DNA replication
b) Energy production
c) Movement
d) Protein synthesis

Answer
c) Movement

Bacterial DNA is found in which part of the cell?
a) Nucleus
b) Nucleoid
c) Mitochondria
d) Endoplasmic reticulum

Answer
b) Nucleoid

What is the primary function of the bacterial capsule?
a) Energy storage
b) Protein synthesis
c) Protection
d) DNA replication

Answer
c) Protection

Which of the following structures is not found in bacterial cells?
a) Ribosomes
b) Cell membrane
c) Mitochondria
d) Cytoplasm

Answer
c) Mitochondria

The bacterial ribosome has a size of:
a) 70S
b) 80S
c) 60S
d) 90S

Answer
a) 70S

Which structure in bacteria helps in the exchange of genetic material during conjugation?
a) Flagella
b) Pilus
c) Capsule
d) Endospore

Answer
b) Pilus

What is the function of the bacterial plasmid?
a) Energy production
b) DNA replication
c) Carrying antibiotic resistance genes
d) Cell wall formation

Answer
c) Carrying antibiotic resistance genes

Which structure allows bacteria to adhere to surfaces?
a) Capsule
b) Flagella
c) Pili
d) Ribosome

Answer
c) Pili

Which of the following bacteria lacks a cell wall?
a) Staphylococcus
b) Escherichia coli
c) Mycoplasma
d) Bacillus

Answer
c) Mycoplasma

Which part of the bacterial cell is responsible for protein synthesis?
a) Nucleoid
b) Flagella
c) Ribosome
d) Capsule

Answer
c) Ribosome

What is the function of the bacterial cell membrane?
a) DNA replication
b) Energy production
c) Structural support
d) Movement

Answer
b) Energy production

Which of the following structures is unique to gram-negative bacteria?
a) Peptidoglycan
b) Outer membrane
c) Flagella
d) Nucleoid

Answer
b) Outer membrane

What is the role of bacterial endospores?
a) Protein synthesis
b) Nutrient storage
c) Survival in harsh conditions
d) Movement

Answer
c) Survival in harsh conditions

Which bacterial structure is involved in motility?
a) Ribosome
b) Capsule
c) Flagella
d) Pilus

Answer
c) Flagella

Which structure gives bacteria their shape and provides rigidity?
a) Ribosome
b) Capsule
c) Cell wall
d) Nucleoid

Answer
c) Cell wall

In bacterial cells, DNA replication occurs in the:
a) Nucleoid
b) Ribosome
c) Flagella
d) Capsule

Answer
a) Nucleoid

What type of genetic material is present in the bacterial plasmid?
a) RNA
b) Circular DNA
c) Linear DNA
d) Double-stranded RNA

Answer
b) Circular DNA

Which staining technique is used to differentiate bacterial cell walls?
a) Gram staining
b) Acid-fast staining
c) Simple staining
d) Negative staining

Answer
a) Gram staining

Which bacterial structure is responsible for the synthesis of proteins?
a) Flagella
b) Ribosomes
c) Cell wall
d) Capsule

Answer
b) Ribosomes

What is the function of bacterial pili?
a) Protein synthesis
b) Cell division
c) DNA exchange
d) Nutrient storage

Answer
c) DNA exchange

Which component of the bacterial cell is involved in antibiotic resistance?
a) Ribosomes
b) Pili
c) Plasmids
d) Nucleoid

Answer
c) Plasmids

Which structure is responsible for bacterial attachment to host cells?
a) Ribosomes
b) Pili
c) Endospores
d) Nucleoid

Answer
b) Pili

Which bacteria possess a thick peptidoglycan layer in their cell walls?
a) Gram-negative
b) Gram-positive
c) Acid-fast
d) Cyanobacteria

Answer
b) Gram-positive

The bacterial capsule is made of:
a) Proteins
b) Lipids
c) Polysaccharides
d) DNA

Answer
c) Polysaccharides

Which structure in bacteria helps them survive harsh environmental conditions?
a) Flagella
b) Endospore
c) Pili
d) Plasmid

Answer
b) Endospore

Bacterial cell walls provide:
a) Energy production
b) Structural support
c) Protein synthesis
d) Genetic information

Answer
b) Structural support

What is the function of the bacterial nucleoid?
a) Protein synthesis
b) DNA storage
c) Cell motility
d) Cell division

Answer
b) DNA storage

Bacterial cells use which structure for horizontal gene transfer?
a) Flagella
b) Ribosome
c) Pilus
d) Nucleoid

Answer
c) Pilus

Which of the following is absent in bacterial cells?
a) Plasma membrane
b) Ribosome
c) Mitochondria
d) Nucleoid

Answer
c) Mitochondria

Which bacterial structure prevents phagocytosis by host cells?
a) Flagella
b) Capsule
c) Ribosome
d) Cell wall

Answer
b) Capsule

Which type of bacteria have an additional outer membrane besides the cell wall?
a) Gram-positive
b) Gram-negative
c) Cyanobacteria
d) Mycoplasma

Answer
b) Gram-negative

Which bacterial structure is responsible for cell division?
a) Pili
b) Ribosome
c) Cell membrane
d) Nucleoid

Answer
d) Nucleoid

The function of the bacterial flagella is:
a) Adherence
b) DNA replication
c) Movement
d) Nutrient uptake

Answer
c) Movement

Which bacterial structure is involved in the formation of biofilms?
a) Capsule
b) Endospore
c) Pilus
d) Flagella

Answer
a) Capsule

Which part of the bacterial cell is involved in the synthesis of proteins?
a) Nucleoid
b) Pili
c) Ribosome
d) Endospore

Answer
c) Ribosome

The bacterial cytoplasm contains:
a) Nucleus
b) Golgi apparatus
c) Ribosomes
d) Mitochondria

Answer
c) Ribosomes

Which bacterial structure prevents desiccation?
a) Endospore
b) Cell wall
c) Ribosome
d) Capsule

Answer
d) Capsule

The bacterial cell membrane is responsible for:
a) DNA replication
b) Protein synthesis
c) Selective permeability
d) Movement

Answer
c) Selective permeability

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