Cell Organelles

cell membrane

All cells are contained by a cell membrane that keeps the pieces inside.

When you think about a membrane, imagine it is like a big plastic bag with some tiny holes.

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Cell Wall

Cell walls are made of specialized sugars called cellulose.

Cellulose provides a protected framework for a plant cell to survive. It's like taking a water balloon and putting it in a cardboard box.

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Cytoplasm is the fluid that fills a cell. Scientists used to call the fluid protoplasm.

Early on, they didn't know about the many different types of fluids in the cell.

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The cell nucleus acts like the brain of the cell. It helps control eating, movement, and reproduction.

If it happens in a cell, chances are the nucleusknows about it. The nucleus is not always in the center of the cell.

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Nuclear Membrane

A nuclear membrane, also known as the nuclear envelope,[1] nucleolemma[2] or karyotheca,[3] is the doublelipid bilayer membrane which surrounds the genetic material and nucleolus in eukaryotic cells.
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The nucleolus is the largest structure in the nucleus of eukaryotic cells where it primarily serves as the site of ribosome synthesis and assembly.
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a centriole is a cylindrical cell structure[1] composed mainly of a protein called tubulin that is found in most eukaryotic cells. An associated pair of centrioles, surrounded by an shapeless mass of dense material, called the pericentriolar material, or PCM, makes up a compound structure called a centrosome.[1]
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Chromatin is a complex of macromolecules found in cells, consisting of DNA, protein and RNA.

The primary functions of chromatin are 1) to package DNA into a smaller volume to fit in the cell, 2) to reinforce the DNA macromolecule to allow mitosis, 3) to prevent DNA damage, and 4) to control gene expression and DNA replication

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Ribosomes are the protein builders or the protein synthesizers of the cell.
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Golgi apparatus

the Golgi apparatus or Golgi complex is found in most cells.

It is anotherpackaging organelle like the endoplasmic reticulum.

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Endoplasmic reticulum

Another organelle in the cell is the endoplasmic reticulum (ER). While the function of the nucleus is to act as the cell brain, the ER functions as a manufacturing and packaging system.
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Mitochondria are known as the powerhouses of the cell. They are organellesthat act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell.
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Chloroplasts are organelles, specialized subunits, in plant and algal cells. Their main role is to conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy fromsunlight, and stores it in the energy storage molecules ATP and NADPH while freeing oxygen from water.
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lysosomes in nearly every animal-like eukaryotic cell. Lysosomes hold enzymes that were created by the cell. The purpose of the lysosome is todigest things.
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There are many ways that peroxisomes are similar to lysosomes. They are small vesicles found around the cell. They have a single membrane that contains digestive enzymes for breaking down toxic materials in the cell.
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Vacuoles are storage bubbles found in cells. They are found in both animal and plant cells but are much larger in plant cells.
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The cytoskeleton is a network of fibers composed of proteins contained within a cell'scytoplasm. Although the name implies the cytoskeleton to be stable, it is a dynamic structure, parts of which are constantly destroyed, renewed or newly constructed.[1]
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