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Cells:The Basic Unit of Life
January
2014
Vocabulary
1. tissue-a group of cells that work together to perform a specific job
2. organ- a group of 2 or more tissues working together to perform a specific job
3. organ system- organs working together in a group to perform specific jobs
4. organism-anything that can live on its own
5. unicellular- organism that is a single cell
Vocabulary continued
6. multicellar- organism that is made of many cells
7. population- group of organisms that are the same kind and that live in the same area
8. community- 2 or more different populations living in the same area
9. ecosystem- the community and all non-living things that affect it
Vocabulary continued
10. cell membrane- acts as a barrier between the inside of the cell and the cell’s environment
11. organelles-structures in a cell that allow it to live, grow, and reproduce
12. cytoplasm-fluid in a cell that contains the organelles
Vocabulary continued
13. nucleus- holds the cells DNA and is the control center for the cell
14.prokayotic- cells that do not have a nucleus
15. eukaryotic- cells with a nucleus16. bacteria- singe celled organisms
without a nucleus
The discovery of cells
1. In 1665, a British scientist named Robert Hooke discovered cells
2. He named them cells,which means “little rooms”In Latin
Cell Theory
- The foundation of biologyCell 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 cells
Video
Compare and Contrast Eukaryotes and Prokaryotes
Prokaryotic cell1. no nucleus2. no membrane-covered
organelles3. circular DNA4. Bacteria
Eukayotic cell1. nucleus2. membrane-covered
organelles3. linear DNA4. All other cells
Cell organelles
1. 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 cell
It’s function reminds me of ……….
Cell organelles
2. cell wall- made of cellulose, provides strength and support to the cell membrane
Found in plant cells
It’s function reminds me of ……….
Cell organelles
3. nucleus- contains the cell’s DNA and is the control center for the cell
Found in plant and animal cell
It’s function reminds me of ……….
Cell organelles
4. ribosomes- amino acids are hooked together to make proteins
Found in plant and animal cells
It’s function reminds me of……..
Cell organelles
5. Mitochondria-break down food molecules to make ATP (energy) “power house”
Found in plant and animal cells
It’s function reminds me of……….
Cell organelles
6. chloroplasts-make food using the energy from sunlight
Found in plant cells
It’s function reminds of ………
Cell organelles
7. endoplasmic reticulum- makes lipids (fats), breaks down drugs, packages up proteins for release from the cell
Found in plant and animal cells
It’s function reminds me of……
Cell organelles
8. golgi complex- processes and transports materials out of the cell
Found in plant and animal cell
It’s function reminds me of…….
Cell organelles
9. Vacuole-stores water and other materials
A large vacuole is found in plant cells, smaller vacuoles are found in animals cells
It’s function reminds me of……..
Cell organelles
10. lysosomes- digest food particles, wastes, cell parts and foreign invaders
Found in plant and animal cells
It’s function reminds me of……
Cell Organelles
11. Cytoplasm-Fluid that holds the organelles
Found in plant and animal cells
It’s function reminds me of……
