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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.

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Presentation on theme: "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."— Presentation transcript:

1 Cells: The Basic Unit of Life January 2014

2 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

3 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

4 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

5 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 nucleus 16. bacteria- singe celled organisms without a nucleus

6 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

7 Cell Theory - The foundation of biology Cell Theory  1. All living things are made of cells  2. Cells are the basic structure and function of all living things  3. All cells come from existing cells Video

8 Compare and Contrast Eukaryotes and Prokaryotes Prokaryotic cell 1. no nucleus 2. no membrane-covered organelles 3. circular DNA 4. Bacteria Eukayotic cell 1. nucleus 2. membrane-covered organelles 3. linear DNA 4. All other cells

9 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 cell  Found in plant and animal cell  It’s function reminds me of ……….

10 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 ……….

11 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 ……….

12 Cell organelles 4. ribosomes- amino acids are hooked together to make proteins  Found in plant and animal cells  It’s function reminds me of……..

13 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……….

14 Cell organelles 6. chloroplasts-make food using the energy from sunlight  Found in plant cells  It’s function reminds of ………

15 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……

16 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…….

17 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……..

18 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……

19 Cell Organelles 11. Cytoplasm- Fluid that holds the organelles  Found in plant and animal cells  It’s function reminds me of……


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