1. HB. 2B.1 Structure and Function of Organelles
Develop and use models to explain how specialized structures within cells interact to produce, modify and transport proteins

2. What are organelles?
Organelle- part of a cell that performs a specialized function
Organelles in Eukaryotic cells include:
Nucleus
Mitochondria
Chloroplasts
Lysosomes
Vacuoles
Ribosomes
Endoplasmic Reticulum
Golgi Apparatus
Cilia
Flagella
Cell Membrane
Nuclear Membrane
Cell Wall
Cytoskeleton
Cytoplasm

3. Organelles and Their Functions
Nucleus- contains chromosomes made of DNA
Site of genetic control of cell
Mitochondria- site of cellular respiration
Provides energy for the cell (power plant)
Chloroplasts- ONLY FOUND IN PLANTS
Contain chlorophyll- green pigment that converts energy from the Sun into CO2, sugar, and H2O (photosynthesis)
Lysosomes- contain enzymes used to digest materials
Vacuoles- stores materials like H2O, salts proteins and carbohydrates
Smaller in animal cells than in plant cells

4. Organelles and Their Functions
Ribosome- site of protein production
Some found in ER others in cytoplasm
Endoplasmic Reticulum (ER)- complex system to transport materials throughout the inside of the cell.
Smooth- no ribosomes
Rough- ribosomes attached to surface (studded)
Golgi Apparatus- packages and distributes molecules within or outside the cell.
Cilia- short hair like projections used to move animal cells or protists

5. Organelles and Their Functions
Flagella- long whip like projection used to move animal cells, bacteria, or protists
Cell membrane- encloses cell, regulates passage of material between cell and environment and aids in protection and support
Nuclear membrane (envelope)- surrounds nucleus and regulates passage between nucleus and cytoplasm.
Cell Wall- surrounds cell membrane and provides protection and support in plant cells, bacteria, fungi, and some protists. Also, it allows passage of specific materials in and out of the cell.

6. Organelles and Their Functions
Cytoplasm- semi-fluid material inside cell that contains molecules and organelles and is bound by the cell membrane but not in the nucleus.
Cytoskeleton- help maintain a cells shape, is involved in movement and material transport with a network of protein filaments like microfilaments and microtubules. They also help move the cilia and flagella.