cells objective: students will be able to describe cell theory how cells are organized in...
TRANSCRIPT
Cells
• Objective: Students will be able to describe cell theory how cells are organized in multicellular organisms
An overview of cells
What is a cell?
• cell – the most basic unit of structure and function in living things.
• Determine structure of living things
• Cells are involved in all functions of living things
• Cells are too small to see
Development of Cell Theory
ALL living things madeof cells
Cells are basic units ofstructure and function inliving things
ALL cells are produced from other cells
Development of Cell Theory
• “all cells come from cells”
• Cell Theory:
1. All living things made of cells2. Cells are the basic units of structure and
function in living things3. All cells are produced from other cells
Unicellular & Multicellular
Unicellular
Multicellular
tissuecells organ organ system
organization
Unicellular & Multicellular• Unicellular: single celled organisms
– Ex. Bacteria
• Multicellular: many celled organisms
– Cells organized into:1. Tissues – group of similar cells (stomach tissue)
2. Organs – group of tissues (stomach)
3. Organ Systems – group of organs (digestive system)