Atomic Theory & Atomic Structure Atoms: The Building Blocks of Matter.
What are atoms?. The building blocks of all matter.
-
Upload
david-sharp -
Category
Documents
-
view
221 -
download
1
Transcript of What are atoms?. The building blocks of all matter.
Cells are the basic building blocks of life. (differentthan atoms which are the basic building blocks of all matter!)
Organelles are the organs inside a cell. They are what makes the cells work and each have their own job to do.
plasma (cell) membrane cytoplasmribosomes nucleuslysosomes vacuolesER (rough and smooth) nucleolusGolgi complex DNAmitochondria
cell membrane cytoplasmribosomes vacuoles chloroplasts Golgi complex DNA Mitochondria nucleus cell wallER (rough and smooth) nucleolus
Eukaryotes do have a nucleus and membrane bound organelles
Prokaryotes don’t have a nucleus nor membrane bound organelles
• The cells of unicellular organisms divide to reproduce.
• The multicellular organisms divide to replace cells and to grow.
Cells specialization only occur in multicellular organisms.
Multicellular organisms have many cells, that must work together for an organism to live.
Each organelle has their own jobs.
As you grow your cells do not grow, they divide, creating more cells. That means you have more cells when you are in Middle School, than as an infant – not bigger cells.
A cell wants to keep everything working perfectly and keep everything even.
*If the concentration of substances inside a cell is higher than concentration outside the cell. Meaning, there is more water inside cell than outside. Water moves to the outside of the cell to even out the concentrations.
If the concentration of substances is lower outside the cell than concentration inside the cell. Meaning, there is more water outside the cell than inside. Water moves into a cell to even out the concentration.