Eukaryotic cell Definition

“Eukaryotic cells space the cells that contain a membrane bound nucleus and also organelles.”

Table of Contents


Eukaryotic cells have a nucleus enclosed in ~ the nuclear membrane and kind large and facility organisms. Protozoa, fungi, plants, and also animals all have eukaryotic cells. They space classified under the kingdom Eukaryota.

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They can maintain various environments in a solitary cell that permits them to carry out assorted metabolic reactions. This help them grow many times larger than the prokaryotes cells.

Also refer: Difference in between Prokaryotic and Eukaryotic Cells


The features of eukaryotic bio cells space as follows:

Eukaryotic cells have the cell core enclosed within the nuclear membrane.

The cell has mitochondria.

Flagella and cilia are the locomotory guts in a eukaryotic bio cell.

A cell wall surface is the outermost class of the eukaryotic bio cells.

The cells divide by a procedure called mitosis.

The eukaryotic bio cells save a cytoskeletal structure.

The nucleus includes a single, straight DNA, i m sorry carries all the genetic information.


The eukaryotic cell structure comprises the following:

Plasma Membrane

The plasma membrane the end the cell from the external environment.It comprises details embedded proteins, which aid in the exchange of building material in and out that the cell.

Cell Wall

A cell wall surface is a strictly structure present outside the plant cell. The is, however, absent in pet cells.It gives shape to the cell and helps in cell-to-cell interaction.It is a security layer the protects the cabinet from any injury or virus attacks.It is composed of cellulose, hemicellulose, pectins, proteins, etc.

Also refer: cabinet Wall 

Cytoskeleton

The cytoskeleton is current inside the cytoplasm, which consists of microfilaments, microtubules, and fibres to carry out perfect shape to the cell, anchor the organelles, and also stimulate the cell movement.

Endoplasmic Reticulum

It is a network that small, tubular structures that divides the cabinet surface into two parts: luminal and also extraluminal.

Endoplasmic reticulum is of 2 types:

Rough absorbent Reticulum contains ribosomes.

Smooth absorbent Reticulum the lacks ribosomes and also is thus smooth.

Nucleus

The nucleoplasm enclosed in ~ the nucleus contains DNA and also proteins.The nuclear envelop is composed of 2 layers- the external membrane and also the inside membrane. Both the membranes room permeable come ions, molecules, and also RNA material.Ribosome production additionally takes place inside the nucleus.

Golgi Apparatus

It is consisted of of level disc-shaped structures dubbed cisternae.It is missing in red blood cells of humans and sieve cells of plants.They room arranged parallel and concentrically close to the nucleus.It is crucial site for the development of glycoproteins and glycolipids.

Also read: Golgi Apparatus

Ribosomes

These are the main site for protein synthesis and also are written of proteins and ribonucleic acids.

Mitochondria

These are additionally known together “powerhouse the cells” since they produce energy.It consists of an external membrane and an within membrane. The inner membrane is separated into folds dubbed cristae.They assist in the regulation of cabinet metabolism.

Lysosomes

They are recognized as “suicidal bags” due to the fact that they own hydrolytic enzyme to digest protein, lipids, carbohydrates, and nucleic acids.

Plastids

These space double-membraned structures and also are uncovered only in plant cells. These room of 3 types:

Chloroplast that has chlorophyll and is connected in photosynthesis.

Chromoplast that consists of a pigment dubbed carotene that provides the plants yellow, red, or orange colours.

Leucoplasts that space colourless and store oil, fats, carbohydrates, or proteins.


Eukaryotic cabinet diagram mentioned listed below depicts various cell organelles existing in eukaryotic cells. The nucleus, endoplasmic reticulum, cytoplasm, mitochondria, ribosomes, lyosoms are clearly mentioned in the diagram.

Explore much more about Cell organelles


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Eukaryotic cabinet Diagram illustrated over shows the visibility of a true nucleus.


The eukaryotic bio cells divide during the cell cycle. The cabinet passes through different stages throughout the cycle. There are various checkpoints in between each stage.

Quiescence (G0)

This is well-known as the resting phase, and also the cabinet does not divide throughout this stage. The cabinet cycle starts in ~ this stage. The cell of the liver, kidney, neurons, and stomach all reach this stage and also can remain there for longer periods. Countless cells do not go into this stage and also divide indefinitely throughout their lives.

Interphase

In this stage, the cell grow and also take in nutrient to prepare them because that the division. It consists of three

checkpoints:

Gap 1 (G1) – here the cabinet enlarges. The proteins likewise increase.

Synthesis (S) – DNA replication takes ar in this phase.

Gap 2 (G2) – Ther cell enlarge more to undergo mitotic division.

Mitosis

Mitosis entails the following stages:

Prophase

Prometaphase

Metaphase

Anaphase

Telophase

Cytokinesis

On division, each daughter cabinet is an accurate replica that the original cell.


Eukaryotic cells space exclusively uncovered in plants, animals, fungi, protozoa, and other facility organisms. The examples of eukaryotic bio cells are stated below:

Plant Cells

The cell wall is comprised of cellulose, which offers support come the plant. It has actually a large vacuole i m sorry maintains the turgor pressure. The tree cell includes chloroplast, which aids in the procedure of photosynthesis.

Fungal Cells

The cell wall surface is made of chitin. Part fungi have holes known as septa which allow the organelles and also cytoplasm come pass with them.

Animal Cells

These perform not have cell walls. Instead, they have actually a cell membrane. The is why animals have varied shapes. They have the capability to do phagocytosis and also pinocytosis.

Protozoa

Protozoans space unicellular organisms. Part protozoa have actually cilia for locomotion. A thin layer dubbed pellicle provides supports to the cell.

For more information on eukaryotic bio Cells, the definition, characteristics, structure, and examples, store visiting BYJU’S website or download BYJU’S application for additional reference.

Related Links:

Prokaryotic and Eukaryotic Cells
Difference in between the tree cell and also Animal cell


Eukaryotic cells might be unicellular or multicellular. Paramecium, Euglena, Trypanosoma, Dinoflagellates room unicellular eukaryotes. Plants and also animals room multicellular eukaryotes.


What is the most vital characteristic of eukaryotic bio cells the distinguishes that from prokaryotic cells?


Eukaryotic cells have actually a membrane-bound nucleus. ~ above the contrary, prokaryotic cells absence a true nucleus, i.e., they have no atom membrane. Unlike eukaryotic cells, the prokaryotic cells carry out not have mitochondria, chloroplast and also endoplasmic reticulum.


Viruses space neither eukaryotes no one prokaryotes. Since viruses space a link in between living and non-living they are not thought about in one of two people category.


A eukaryotic cell has actually the following essential features:

A eukaryotic cell has a nuclear membrane.It has mitochondria, Golgi bodies, cabinet wall.It likewise contains locomotory organs such together cilia and also flagella.The nucleus has actually a DNA the carries all the hereditary information.

A eukaryotic cell divides through the procedure of mitosis. It experience the adhering to stages throughout cell division:

ProphaseMetaphaseAnaphaseTelophaseCytokinesis

The first eukaryotic cell evolved around 2 billion years ago. This is described by the endosymbiotic concept that describes the origin of eukaryotic bio cells by the prokaryotic organisms. Mitochondria and also chloroplasts are thought to have evolved from symbiotic bacteria.

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The an initial evidence in assistance of the endosymbiotic concept is the mitochondria and chloroplast have their own DNA and this DNA is similar to the bacterial DNA. The organelles usage their DNA to create several proteins and enzymes to carry out specific activities.