What are cells Building blocks of living things Lets name some living things people plants animals bacteria Cells provide structure convert nutrients to energy and carry out specialized functions ID: 449453
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Slide1
What are cells?Slide2
What are cells?
Building blocks of living things
Let’s name some living things:
people, plants, animals, bacteriaCells provide structure, convert nutrients to energy, and carry out specialized functions.Your body is made of trillions of cells. Muscle cells help you move, stomach cells help you digest your lunch, and skin cells cover your whole body!Slide3
What do cells look like?
Animal cells
Plant cells
Cell Structure
http://www.glogster.com/amsgirl/shrock1-plant-animal-cell/g-6lunn7f8fjsc4kg7g50nsa0Slide4
What do cells look like?
Animal cells
Plant cells
Let’s make our own cell models!
Cell Structure
http://www.oncoursesystems.com/school/webpage/10845583/7883070Slide5
Making animal cell and plant cell models
Video
https://www.youtube.com/watch?v=IDX9JOUskuA
Click for a link to a tutorial!Slide6
How can stuff get in and out of cells?
Passive
Oxygen, carbon dioxide and water pass through tiny holes in the cell membrane from high concentration to lower concentration
Called diffusion for gases, or osmosis for waterLet’s explore diffusion!
Transport
http://www.biology4kids.com/files/cell2_passivetran.htmlSlide7
Diffusion through a cell membrane
Remember, an egg is a really big single cell!
Video
https://www.youtube.com/watch?v=rFls3g8v6fo
Click for a link to a tutorial!Slide8
How can stuff get in and out of cells?
Active
Larger molecules need help to pass through the cell membraneThey can move one molecule at a time, or in bigger chunksRequires energy
Transport
http://
www.biology4kids.com/files/cell2_activetran.html http
://www.sophia.org/concepts/endocytosis-and-exocytosisSlide9
How can cells move?
Some crawl (
video 1 video 2)make new attachments at the front
release attachments from the backcontract cell body to bring cell forwardLet’s explore how cells move by playing with toy water snakes!
Movement
https://
www.youtube.com/watch?v=JnlULOjUhSQ http
://www.microscopyu.com/moviegallery/livecellimaging/mdbk/index.html
Click for a link to a video clip!Slide10
How can cells move?
Some swim (
video 1 video 2)Cilia or flagella on cell body move back and forth or around like a propeller to produce movement
Can you think of other ways cells might move?Video
https://www.youtube.com/watch?v=HXcEACQv5-8 https://www.youtube.com/watch?v=jl0TzaWUQWkSlide11
Can you think of things other than cells that move in similar ways?
Video
Click for a link to a video clip!Slide12
Let’s
cell-ebrate what we’ve learned!
We know…the parts of the cellhow water and other materials move in and out of cellsh
ow cells move