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Cells: Plant and Animal. What is the smallest part of this living thing?. Cells !. COMPARING CELLS. The size & shape of a cell relates to its function (job it does). CELLS. There are two kinds of cells: Animal & Plant
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COMPARING CELLS • The size & shape of a cell relates to its function(job it does).
CELLS • There are two kinds of cells: Animal & Plant • Some organisms are unicellular (single-celled) and some organisms are multicellular (many cells). • All cells do three activities or things: 1. Bring materials into the cell. 2. Use the materials for life activities and processes. 3. Get rid of waste.
Animal Cell Nucleus DNA Mitochondria Vacuole Cytoplasm Ribosomes
NUCLEUS • Controls all cell activities • Contains the instructions for everything the cell does • These instructions are found on a material called DNA • Usually the largest organelle
CELL MEMBRANE • Protective layer around ALL cells • Controls what enters and leaves the cell • For cells with a cell wall, the cell membrane is on the inside of the cell wall • Allows water, gases (O2 & CO2), and materials into the cell & waste materials out of the cell.
CYTOPLASM • The cytoplasm is the gel-like substance that fills the entire cell. • This is where all cell activities take place. • Main ingredient: WATER
MITOCHONDRIA • Inside a chemical reaction takes place to release energy for the cell to use. • This process is called CELLULAR RESPIRATION • Takes in O2 and sugar; Releases energy, CO2 and H2O • Energy is released by breaking down food • AKA the powerhouse b/c it releases energy from food.
VACUOLES • Temporary storage spaces • Store water, material, & waste • Small sized in Animal Cells • Large sized in Plant Cells
ENDOPLASMIC RETICULUM • The ER transports materials around the cell. (like a conveyor belt) • Smooth ER – ribosomes not attached to ER • Rough ER – ribosomes attached to ER
RIBOSOMES • Make proteins for the cell to use • Float freely or are attached to the endoplasmic reticulum (ER) • Ribosomes are made in the nucleus
Cell MembraneMitochondriaER (rough and smooth)RibosomesCytoplasmNucleus Plant cells have many of the same organelles that an animal cell does…plus a few more _______________________
CELL WALL • found outside the cell membrane • gives shape, structure, and support to organism – does what bones do for humans!
CHLOROPLASTS • This is where photosynthesis takes place. • Contains chlorophyll, a green chemical, making the plant green. • Chlorophyll absorbs the sun’s energy to change carbon dioxide and water into sugar and oxygen. • CO2 + H2O = C6H12O6 (sugar) + O2
VACUOLES • Does the exact same thing in plant cells that it does in animal cells…only MUCH BIGGER.
All organisms need Carbon to do their life activities • Plants absorb carbon out of the air • Animals get carbon when they eat plants or other animals • Animals release carbon into the air when they breath
All organisms need Carbon to do their life activities • Bacteria and Fungi get carbon from waste and dead organisms and put it into the air • Anything burning also puts carbon back into the air for the plants to use and start the cycle all over again • This cycle is call the Carbon Cycle
NAME THE ORGANELLE c. Ribosomes a. Nucleus c. d. Mitochondria b. Chloroplast
1- Nucleus 2- DNA 7- ER 3- Mitochondria 5- Chloroplasts 8- Cell Membrane 4- Ribosomes 6- Vacuoles