* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Cells
Survey
Document related concepts
Cytoplasmic streaming wikipedia , lookup
Signal transduction wikipedia , lookup
Biochemical switches in the cell cycle wikipedia , lookup
Cell membrane wikipedia , lookup
Tissue engineering wikipedia , lookup
Cell nucleus wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cell encapsulation wikipedia , lookup
Programmed cell death wikipedia , lookup
Cellular differentiation wikipedia , lookup
Endomembrane system wikipedia , lookup
Cell culture wikipedia , lookup
Cell growth wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Transcript
CELLS Robert Hooke Robert Hooke1st person to view a cell under a microscope, given credit for naming cells. CELL THEORY Cell Theory- made up of three parts 1. Cells are basic building block of all living things 2. All life activities take place in cells 3. New cells are produced by existing cells Cell Organelles Cell Organelles Organelle- tiny structures that carry out cell activities Cell Membrane Cell Membrane- surrounds the cell and controls what goes in and out of the cell Semi-permeable acts much like a filter or screen - some things pass, others cannot Nuclear Membrane Nuclear Membrane- Surrounds the nucleus and controls materials moving in and out of the nucleus Nucleus Nucleus- control center of the cell, directs all the cell’s activities Contains DNA Usually the easiest organelle to see under a microscope Usually one per cell Cytoplasm CytoplasmJelly-like substance that fills the cell and contains the other parts of the cell Chromosomes ChromosomeHolds the instructions for all traits of a cell DNA DNA- chemical found in the chromosomes, that directs life activities, “Blueprint of Life” Mitochondria MitochondriaStores and releases the energy “Powerhouse of the cell” Chloroplast ChloroplastContains chlorophyll that absorbs energy from the sun to help the plant make food Cell Wall Cell Wall- Stiff outer layer that protects and gives a plant cell its’ shape Found in plant cells Vacuoles VacuolesStorage container for water, food, wastes Larger vacuoles usually in plant cells Many smaller vacuoles in animal cells Quick Review Which organelle is the control center of the cell? Which organelle holds the cell together? Which organelles are not found in animal cells? Which organelle helps plant cells make food? Enjoy these photos and diagrams of the cell organelles! …the Cell Wall Mitochondria! The nucleus with other structures…