The cell
The nucleus
The atom
Molecules
Controls what enters and leaves the cell
Produces energy for the cell
Stores nutrients for the cell
Synthesizes proteins
Ribosomes
Golgi apparatus
Mitochondria
Endoplasmic reticulum
Carries out photosynthesis
Stores waste materials
Contains genetic material and controls cell activities
Regulates cell rigidity
Nucleoplasm
Cytoplasm
Chlorophyll
Interstitial fluid
Chloroplasts
Mitochondria
Lysosomes
Ribosomes
Transport proteins
Synthesize lipids
Make proteins
Store genetic information
Presence of cell wall and chloroplasts in plant cells
Presence of a nucleus in only plant cells
Plant cells lack a cytoskeleton
Only plant cells have vacuoles
Produce energy
Synthesize DNA
Transport signals
Break down waste materials and cellular debris
Cytoskeleton
Cell wall
Plasma membrane
Nucleus
Assists in the production and transport of proteins and lipids
Packages proteins for export
Houses genetic information
Initiates cell division
Initiates apoptosis
Synthesizes fatty acids
Modifies, sorts, and packages proteins and lipids
Governs cell reproduction
A cellular powerhouse
Part of the cytoskeleton
Site of replication
A storage sac within cells
Because they perform photosynthesis
Because they create offspring
They are the smallest functional units that make up living organisms
Because they contain DNA sequences
Through chemical signals and receptors
By sharing membranes
Through electrical impulses
Via cytoskeleton connections