Air #1
• Conclusion – I thought that __________ ____________. I found out that ______ _____________. My observations showed ________________________. The reason this happened was ______ ________________. In the future I would like to try / I still wonder________ _______________________.
Cells
Chapter 1
Cells
• Question – What do cells look like?• Hypothesis – I think cells _________.• Results-
DescriptionType of cell Picture
• Conclusion – My hypothesis was ______ ___________________. I learned _____ _____________________. My observations were __________________ _____________________. I think this is because _______________________. I still wonder _______________________ ___________________________.
Cell Theory• What scientists
know about cells
1. All living things are made up of one or more cells
2. The cell is the basic unit of a living organism
3. Cells come from other cells
What Cells Do• All living things have basic
needs1. Energy source2. Support and protection 3. Growth and reproduction
• 2 Types of Organisms– Single Celled – one cell
Multicellular – many cells
• Plants and animal cells do some things differently (plants use sunlight to MAKE energy, animals EAT to get energy)
Comparing Plant and Animal Cells
PlantCell
AnimalCell
CellWall
LargeVacuoles
Chloroplast
Box like
Cytoplasm
EndoplasmicReticulum
Mitochondria
GolgiApparatus
ribosomes
CellMembrane
Nucleus(DNA)
DifferentShapes
SmallVacuoles
Cellular Respiration
Mitochondria
Oxygen
Glucose
CarbonDioxide
Energy
Water
Cells and Energy
• Cells use energy for– movement– making proteins– dividing (make new
cells)– transport of materials
Moving Materials
Passive
•Uses No Energy
•High Concentration to low
(crowded to not crowded)
•Diffusion – happens in gas or liquid
•Osmosis – things dissolved in water
Active
•Uses Energy
•Low Concentration to high concentration
(not crowded to crowded)
Diffusion Activity
• What pattern did you notice?
• Why did people closest smell the odor first?
• What does that tell you about how the smell traveled?
• Explain diffusion in your own words.
Cell Organization• Cell
• Tissues – a group of similar cellsEx) skin tissue
• Organ- a group of similar tissues working together to do a job
Ex) heart, kidney, lungs
• Organ System – a group of related organs working together to do a job
Ex) muscular system, digestive System
• Organism – a living thingEx) animal, plant, human
Cells Video Quiz
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