Organelle Study Guide

Function: regulates all cell activity, and also holds the DNA
The nucleus is in both plant and animal cells

Nucleus

Function: assembles the twenty specific amino acid molecules to form the particular protein molecule
In both animal and plant cells

Ribosomes

Function: organizes cell division
Only in animal cells

Centrioles

Function: controls what enters and exits the cell
In both animal and plant cells

Cell membrane

Function: supports and protects the cell, rigid barrier
Only in plant cells

Cell Wall

Function: lipid and carbohydrate synthesis.
Structure: has no ribosomes therefore it is smooth.
In both animal and plant cells

Smooth endoplasmic reticulum

Function: produces and modifies proteins
Located next to the nucleus
Called the rough endoplasmic reticulum because it has ribosomes on the surface.
Both plant and animal cells

Rough endoplasmic reticulum

Function: modify, sort, and package macromolecules for cell secretion
Located next to the endoplasmic reticulum
It is found in both plant and animal cells.

Golgi Apparatus

Function: converts energy into compounds that are easier for the cell to use
It is found in both plant and animal cells.

Mitochondrion

Function: captures the energy from sunlight and converts it into food that contains chemical energy in a process called photosynthesis
Only found in plant cells

Chloroplasts

Function: breaks down, recycles macromolecules (lipids, carbohydrates, and proteins)
Found in animal cells, rare in plant cells

Lysosome

Function: holds all organelles in place.
It is found in animal and plant cells

Cytoplasm

Function: stores materials
It is found in animal and plant cells.

Vesicle

Function: stores water, salts, protein, and carbohydrates
It is found in both animal and plant cells

Vacuole

Function: produces ribosomes then they move out and to position in on the rough endoplasmic reticulum where they are critical in protein synthesis
It is found in both animal and plant cells

Nucleolus