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Select the correct statement related to the characteristics of prokaryotic cell.
It has more than one chromosome.
Nuclear region is well defined and surrounded by nuclear membrane.
It has a single chromosome.
Membrane bound cell organelles are present.
It has a single chromosome.
Prokaryotic cells are defined by the absence of a membrane-bound nucleus and membrane-bound organelles. They contain a single, circular, double-stranded DNA molecule which serves as their primary chromosome.
Prokaryotic cells are defined by the absence of a membrane-bound nucleus and membrane-bound organelles. They contain a single, circular, double-stranded DNA molecule which serves as their primary chromosome.
Think of a prokaryotic cell like a single-room studio apartment where all living activities (sleeping, cooking, working) happen in one open space, whereas a eukaryotic cell is like a large house with separate rooms for specific tasks.
PRO = Pro (primitive/before), KARYON = Nut (nucleus) тЖТ Primitive nucleus (lacks membrane).
DNAprokaryoteтАЛ=Circular,┬аDouble-stranded
The genetic material in prokaryotes (like bacteria) is located in an irregularly shaped region of the cytoplasm called the nucleoid, which lacks a nuclear envelope. Because they lack compartmentalization, all cellular processes like DNA replication and protein synthesis occur within the same cytoplasmic space.
Lack of nuclear membrane.
Absence of membrane-bound organelles like mitochondria or Golgi apparatus.
Genetic material is a single circular chromosome located in the nucleoid.
Cell division occurs via binary fission.
Rapid reproduction rate due to structural simplicity.
Limited complexity and inability to form multicellular tissues.
Used in biotechnology for protein production (e.g., E. coli).
Essential roles in nutrient cycling and decomposition.
Prokaryotes range from 0.1 to 5.0 micrometers in size.
Option A is incorrect because prokaryotes do not have multiple chromosomes.
Option B is incorrect because they lack a well-defined membrane-bound nucleus.
Option D is incorrect because they lack complex, membrane-bound organelles like chloroplasts or mitochondria.
C is correct тАФ Prokaryotic cells possess a single, circular chromosome found in the nucleoid region, distinct from the multiple linear chromosomes found in eukaryotic cells.
When answering biology questions about 'prokaryotic vs eukaryotic', always remember the mnemonic: 'Pro is No' (No nucleus, No organelles, No meiosis).
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