Monthly Student Online Competition

Prokaryotes MDCAT MCQs with Answers

Prokaryotes (Kingdom Monera) MDCAT MCQs

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

The absence of which structure is a defining feature of prokaryotes?
a) Nucleus
b) Ribosomes
c) Cytoplasm
d) Plasma membrane

Answer
a) Nucleus

Prokaryotic DNA is located in which part of the cell?
a) Mitochondria
b) Nucleoid
c) Golgi apparatus
d) Chloroplast

Answer
b) Nucleoid

Which of the following is an example of a prokaryotic organism?
a) Amoeba
b) Fungi
c) Bacteria
d) Algae

Answer
c) Bacteria

Which of the following structures is not present in prokaryotic cells?
a) Ribosome
b) Cell wall
c) Mitochondria
d) Plasma membrane

Answer
c) Mitochondria

Prokaryotic ribosomes have a size of:
a) 70S
b) 80S
c) 60S
d) 90S

Answer
a) 70S

Which process do prokaryotes use to reproduce?
a) Binary fission
b) Mitosis
c) Meiosis
d) Budding

Answer
a) Binary fission

The genetic material in prokaryotes is:
a) Linear DNA
b) Circular DNA
c) DNA with histones
d) Chromatin-bound DNA

Answer
b) Circular DNA

Which of the following is a characteristic of prokaryotes?
a) Membrane-bound organelles
b) Multicellularity
c) Lack of true nucleus
d) Sexual reproduction

Answer
c) Lack of true nucleus

Which type of RNA polymerase is found in prokaryotes?
a) RNA polymerase I
b) RNA polymerase II
c) RNA polymerase III
d) A single RNA polymerase

Answer
d) A single RNA polymerase

Prokaryotic cell walls are primarily made of:
a) Chitin
b) Cellulose
c) Peptidoglycan
d) Phospholipids

Answer
c) Peptidoglycan

Which of the following structures is used by prokaryotes for movement?
a) Flagella
b) Cilia
c) Pseudopodia
d) Microtubules

Answer
a) Flagella

What is the primary function of plasmids in prokaryotes?
a) Protein synthesis
b) Carrying antibiotic resistance genes
c) Energy production
d) Structural support

Answer
b) Carrying antibiotic resistance genes

Which of the following is absent in prokaryotic cells?
a) Ribosomes
b) Endoplasmic reticulum
c) Cell membrane
d) DNA

Answer
b) Endoplasmic reticulum

The region where the prokaryotic chromosome is located is called:
a) Nucleus
b) Nucleoid
c) Nucleoplasm
d) Nuclear envelope

Answer
b) Nucleoid

Which of the following organisms is classified as a prokaryote?
a) Paramecium
b) Cyanobacteria
c) Fungi
d) Protozoa

Answer
b) Cyanobacteria

What is the main source of energy production in prokaryotic cells?
a) Mitochondria
b) Plasma membrane
c) Nucleoid
d) Ribosomes

Answer
b) Plasma membrane

Which structure in prokaryotes is responsible for protein synthesis?
a) Nucleoid
b) Ribosomes
c) Flagella
d) Golgi apparatus

Answer
b) Ribosomes

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 term describes the transfer of genetic material between prokaryotic cells via a pilus?
a) Transduction
b) Transformation
c) Conjugation
d) Binary fission

Answer
c) Conjugation

What are small, circular DNA molecules in prokaryotes called?
a) Chromosomes
b) Plasmids
c) Histones
d) Nucleosomes

Answer
b) Plasmids

Which type of bacteria has a thick peptidoglycan layer and stains purple in Gram staining?
a) Gram-negative bacteria
b) Gram-positive bacteria
c) Acid-fast bacteria
d) Spirochetes

Answer
b) Gram-positive bacteria

The process in which bacteria take up foreign DNA from their environment is called:
a) Transformation
b) Conjugation
c) Transduction
d) Transcription

Answer
a) Transformation

Which structure helps prokaryotes adhere to surfaces?
a) Flagella
b) Pili
c) Cilia
d) Endospore

Answer
b) Pili

What term describes a dormant, tough, and non-reproductive structure formed by some prokaryotes?
a) Cyst
b) Spore
c) Endospore
d) Pilus

Answer
c) Endospore

Which type of gene transfer involves viruses transferring DNA between prokaryotes?
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
c) Transduction

The outermost layer of prokaryotic cells that provides protection is called the:
a) Cell membrane
b) Cell wall
c) Capsule
d) Nucleoid

Answer
c) Capsule

The function of the prokaryotic cell wall is to:
a) Synthesize proteins
b) Provide structural support
c) Produce energy
d) Store nutrients

Answer
b) Provide structural support

Which of the following is NOT true about prokaryotic cells?
a) They lack a nucleus
b) They contain 80S ribosomes
c) They reproduce by binary fission
d) Their DNA is circular

Answer
b) They contain 80S ribosomes

The genetic material of prokaryotes is not enclosed in a:
a) Cell membrane
b) Nuclear envelope
c) Cell wall
d) Plasma membrane

Answer
b) Nuclear envelope

Prokaryotes lack which of the following structures?
a) Cytoplasm
b) Golgi apparatus
c) Ribosomes
d) Plasma membrane

Answer
b) Golgi apparatus

What structure is responsible for the transfer of genetic material between bacterial cells?
a) Endospore
b) Flagella
c) Pilus
d) Cell wall

Answer
c) Pilus

Which structure serves as the site of DNA replication in prokaryotes?
a) Nucleus
b) Nucleoid
c) Ribosome
d) Flagella

Answer
b) Nucleoid

Which of the following is an example of a prokaryotic autotroph?
a) Escherichia coli
b) Cyanobacteria
c) Paramecium
d) Yeast

Answer
b) Cyanobacteria

The term “prokaryote” refers to cells that:
a) Lack a cell membrane
b) Lack a nucleus
c) Lack ribosomes
d) Lack cytoplasm

Answer
b) Lack a nucleus

Which of the following is an example of extremophiles in prokaryotes?
a) Cyanobacteria
b) Halophiles
c) Paramecium
d) Amoeba

Answer
b) Halophiles

Which structure in prokaryotes is responsible for the selective transport of molecules?
a) Ribosome
b) Cytoplasm
c) Plasma membrane
d) Nucleoid

Answer
c) Plasma membrane

Which of the following bacteria is known for its role in nitrogen fixation?
a) Escherichia coli
b) Rhizobium
c) Staphylococcus
d) Bacillus

Answer
b) Rhizobium

Which of the following is involved in the synthesis of proteins in prokaryotic cells?
a) Flagella
b) Pili
c) Ribosomes
d) Plasma membrane

Answer
c) Ribosomes

Prokaryotes that can survive in extreme conditions, such as high temperatures, are called:
a) Mesophiles
b) Halophiles
c) Extremophiles
d) Psychrophiles

Answer
c) Extremophiles

If you are interested to enhance your knowledge regarding PhysicsChemistryComputer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.

Was this article helpful?
YesNo
See Also  Collective Nouns MDCAT MCQs with Answers
Facebook
Twitter
LinkedIn
WhatsApp
Pinterest
Telegram
Picture of YFP

YFP

YFP empower the youth with the ability to nurture their communication and leadership skills at a common national platform resulting in greater self-confidence and personal growth.

Leave a Reply

Your email address will not be published. Required fields are marked *