Question

hlo ✌️


deference between prokaryotic and eukaryotic cell
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Answer 1

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✰Question ✰

⋄ Difference between Prokaryotic and Eukaryotic Cell.

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❍Answer :-

✰Prokaryotic Cells✰

➧ Lacks true nucleus circular DNA lies naked in the cytoplasm .No chromosomes ,nucleolus or nuclear membrane, nucleoplasm on different from cytoplasm.

➧ Membrane bound organelles like Golgi bodies plastid , mitochondria and endoplasmic reticulum are absent.

➧ cell division take place by fission spindle is not formed ,no mitosis and meiosis.

➧ Ribosomes are smaller and randomly scattered in the cytoplasm.

✰Eukaryotic Cell✰

➧ True nucleus bound by nuclear membrane contains linear DNA associated with protein and RNA ( forming chromosomes ) Nucleolus and nuclear membrane present.

➧ Membrane bound organelles present .

➧ Ribosomes are bigger can be free or attached to the endoplasmic reticulum .

➧ Cell division take place by mitosis or meiosis .

Answer 2

Answer:

Comparision

Eukaryotic Cell versus Prokaryotic Cell comparison chart

Eukaryotic Cell Prokaryotic Cell

Nucleus Present Absent

Number of chromosomes More than one One--but not true chromosome: Plasmids

Cell Type Usually multicellular Usually unicellular (some cyanobacteria may be multicellular)

True Membrane bound Nucleus Present Absent

Example Animals and Plants Bacteria and Archaea

Genetic Recombination Meiosis and fusion of gametes Partial, undirectional transfers DNA

Lysosomes and peroxisomes Present Absent

Microtubules Present Absent or rare

Endoplasmic reticulum Present Absent

Mitochondria Present Absent

Cytoskeleton Present May be absent

DNA wrapping on proteins. Eukaryotes wrap their DNA around proteins called histones. Multiple proteins act together to fold and condense prokaryotic DNA. Folded DNA is then organized into a variety of conformations that are supercoiled and wound around tetramers of the HU protein.

Ribosomes larger smaller

Vesicles Present Present

Golgi apparatus Present Absent

Chloroplasts Present (in plants) Absent; chlorophyll scattered in the cytoplasm

Flagella Microscopic in size; membrane bound; usually arranged as nine doublets surrounding two singlets Submicroscopic in size, composed of only one fiber

Permeability of Nuclear Membrane Selective not present

Plasma membrane with steroid Yes Usually no

Cell wall Only in plant cells and fungi (chemically simpler) Usually chemically complex

Vacuoles Present Present

Cell size 10-100um 1-10um