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