Unit 2: Cell Biology - Functions of the Cell Structure

_____ confines cell contents; regulates entry and exit of materials

Cell Membrane

_____ made of microfilaments and microtubules for cell shape and support movement (Cilia and Flagella)

Cytoskeleton

_____ Direct formation of the mitotic spindle

Centrioles

_____ Makes proteins

Rough Endoplasmic Reticulum (Rough ER)

_____ Creates lipids or fat

Smooth Endoplasmic Reticulum (Smooth ER)

_____ Synthesize proteins

Ribosomes

_____ Break down nutrient molecules or ingested materials

Lysosomes

_____ Directs cell activities

Nucleus

_____ Refines, packages, and transports proteins synthesized on ribosomes associated with rough ER

Golgi Apparatus

_____ Production of ribosomes

Nucleolus

_____ Carry genetic information (DNA) and determine hereditary traits during cell division

Chromosomes

_____ Condenses to form individual chromosomes and unwinds to allow access to information in certain genes

Chromatin

_____ Encloses the nucleus and regulates the passage of materials between the nucleus and cytoplasm

Nuclear Membrane

_____ Stores substances, transports materials, or processes waste within the cell

Vacuole / Vesicle

_____ Control release of energy from foods; form ATP (Powerhouse of the cell)

Mitochondria

_____ Increase the membrane surface area

Microvilli

_____ Area where cell's metabolic reactions occur

Cytoplasm (cytosol)

_____ Detoxify alcohol, hydrogen, peroxide, etc.

Peroxiomes