2Vocabulary1. tissue-a group of cells that work together to perform a specific job2. organ- a group of 2 or more tissues working together to perform a specific job3. organ system- organs working together in a group to perform specific jobs4. organism-anything that can live on its own5. unicellular- organism that is a single cell
3Vocabulary continued6. multicellar- organism that is made of many cells7. population- group of organisms that are the same kind and that live in the same area8. community- 2 or more different populations living in the same area9. ecosystem- the community and all non-living things that affect it
4Vocabulary continued10. cell membrane- acts as a barrier between the inside of the cell and the cell’s environment11. organelles-structures in a cell that allow it to live, grow, and reproduce12. cytoplasm-fluid in a cell that contains the organelles
5Vocabulary continued13. nucleus- holds the cells DNA and is the control center for the cell14.prokayotic- cells that do not have a nucleus15. eukaryotic- cells with a nucleus16. bacteria- singe celled organisms without a nucleus
6The discovery of cells1. In 1665, a British scientist named Robert Hooke discovered cells2. He named them cells,which means “little rooms”In Latin
7Cell Theory - The foundation of biology Cell Theory 1. All living things are made of cells2. Cells are the basic structure and function of all living things3. All cells come from existing cellsVideo
8Compare and Contrast Eukaryotes and Prokaryotes Prokaryotic cellEukayotic cell1. no nucleus2. no membrane-covered organelles3. circular DNA4. Bacteria1. nucleus2. membrane-covered organelles3. linear DNA4. All other cells
9Cell organelles1. cell membrane- surrounds the cell, keeps the cytoplasm inside and allows nutrients to enter the cell and waste products to exit the cellFound in plant and animal cellIt’s function reminds me of ……….
10Cell organelles2. cell wall- made of cellulose, provides strength and support to the cell membraneFound in plant cellsIt’s function reminds me of ……….
11Cell organelles3. nucleus- contains the cell’s DNA and is the control center for the cellFound in plant and animal cellIt’s function reminds me of ……….
12Cell organelles4. ribosomes- amino acids are hooked together to make proteinsFound in plant and animal cellsIt’s function reminds me of……..
13Cell organelles5. Mitochondria-break down food molecules to make ATP (energy) “power house”Found in plant and animal cellsIt’s function reminds me of……….
14Cell organelles6. chloroplasts-make food using the energy from sunlightFound in plant cellsIt’s function reminds of ………
15Cell organelles7. endoplasmic reticulum- makes lipids (fats), breaks down drugs, packages up proteins for release from the cellFound in plant and animal cellsIt’s function reminds me of……
16Cell organelles8. golgi complex- processes and transports materials out of the cellFound in plant and animal cellIt’s function reminds me of…….
17Cell organelles 9. Vacuole-stores water and other materials A large vacuole is found in plant cells, smaller vacuoles are found in animals cellsIt’s function reminds me of……..
18Cell organelles10. lysosomes- digest food particles, wastes, cell parts and foreign invadersFound in plant and animal cellsIt’s function reminds me of……
19Cell Organelles 11. Cytoplasm- Fluid that holds the organelles Found in plant and animal cellsIt’s function reminds me of……