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Selectively permeable in letting certain things enter and leave the cell
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Cells Parts & Organelles
Nucleus Stores the
hereditary information… DNA!
Nucleolus- parts of the ribosomes get made here
Nuclear Envelope- separates the cytoplasm from the nucleus
Cell Membrane
Selectively permeable in letting certain things enter and leave the cell
Cytoplasm
Holds the organelles in place and gives the cell shape
Cytoskeleton
Inner scaffolding of the cell found in the cytoplasm
1. Supports the cells 2. Acts as tracks and transports
organelles and molecules throughout the cells
3. Enable movement of the cell 4. Centrosomes are made up of
cytoskeleton and function in cell division
Cytoskeleton
Cilia & Flagella
They are made up of the same proteins as the cytoskeleton
Cilia are many numerous short hairs that can move fluid across a cell or help it attach to surfaces
Flagella are long whip-like projections that can propel the cell
Cilia & Flagella
Mitochondria
Convert energy from food (carbs, lipids, etc.) into ATP energy
This is called cellular respiration and is important for life!
Lysosomes
Are the cells garbage disposals
Acid-filled vesicles that digest all old/damaged organelles or molecules
Ribosomes
The protein factory of the cell Read all the mRNA and transfer it
into amino acid chains, which build proteins
Rough Endoplasmic Reticulum Connected directly to the nuclear
envelope Covered in ribosomes Functions in folding and packaging
proteins to be shipped in other areas of the cell
Smooth Endoplasmic Reticulum No ribosomes Makes lipids, such as fatty acids,
phospholipids, and steroids Also helps detoxify the cell (clean up
wastes)
Golgi Apparatus Processes
and packages proteins, lipids, and other molecules for export to other locations in or outside of the cell
Chloroplasts
Found only in plants Convert sunlight energy into glucose,
which is a sugar (chemical energy)
Cell Wall Found in plants and some bacteria and
fungi Provides additional protection and
support for cells 100x thicker than the plasma
membrane, explaining how the strength of the cell wall allows some plants to grow 100’s of feet tall
The rigidness of the cell wall does not allow movement of the cell
Vacuole
Found in plants Multipurpose storage sacs that can
store nutrients, water, retain waste products, and provide physical support
Can also contain poisons to deter predators away
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