(DRAFT) Biology Unit 4 Cells IHS Skavaril

Cell membrane

Controls what goes in/out of the cell

Membrane protein

Allows large polar molecules in/out

Cell wall

Gives structure and support

ONLY IN PLANT CELLS

Cytoskeleton

Inside structure and support

Lysosome

Destroys unknown material

Vacuoles

Storage (e.g. water, protein, lipids, etc.)

Nucleus

Stores DNA

Nucleolus

Condensed area of DNA

DNA

Instructions

Mitochondria

Power converter; convert glucose to usable energy (ATP)

Chloroplast

Converts sunlight into glucose

ONLY IN PLANT CELLS

Smooth endoplasmic reticulum (Smooth ER)

Makes lipids

Rough endoplasmic reticulum (Rough ER)

Makes proteins

Ribosome

Machine that makes proteins

Golgi Apparatus

Packing and shipping center for lipids and proteins

Vesicles

The movers

Central vacuole

Stores water

ONLY IN PLANT CELLS

Centriole

Helps with reproduction

ONLY IN ANIMAL CELLS

The 3 cell theories

1. Every living thing is made of cells

2. Cell is the basic unit of life

3. All cells come from other cells

Organelles

Specialized part of a cell with a specific job

Eukaryotic cell

• Bigger

• More complex

• Has nucleus

• DNA

• E.g. plants

Prokaryotic cell

• Smaller

• Less complex

• Does not have nucleus

• DNA

• E.g. bacteria