Mrs. Coffee CH 7 CELLS
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- 14.Define organ systems.
- Groups of organs that work together to perform particular jobs.
- What is the function of the cell membrane?
- It keeps the cytoplasm inside and allows nutrients in and waste products out.
- 13. All cells are surrounded by a ________________________.
- cell membrane
- 15. Define organelle.
- Structures inside the cell that enable the cell to live, grow, and reproduce.
- 16. Define organism.
- Anything that can live on its own.
- 17. Define structure.
- Structure is the shape of a part and the material it is made of.
-
18. How many cells are humans made of?
How many cells did you start from? -
100 trillion;
Only 1 - 7. Name three organ systems in your body. (Short Answer)
- Digestive System, Circulatory System, Respiratory System, Skeletal System
- 8. One of the world's largest cells is a chicken egg. What does this show?
- This shows that not all cells are too small to be seen without a microscope
- 9. Organs are made up of groups of ________________.
- Tissues
- 10. T or F All cells are surrounded by a cell membrane.
- True
- 11. T or F All cells come from other cells.
- True
- 12. T or F All cells are able to survive on their own.
- False. Many cells are dependent on others for life.
- 2. The information for how to make proteins is located in what organelle?
- The nucleus
- 3. What are organs made of?
- Groups of tissues
- 4. What are the three parts of the cell theory?
-
1. The cell is the basic unit of all living things
2. All cells come from existing cells
3. All organisms are made up of one or more cells - 5. What are tissues made of?
- Groups of cells
- 6. What basic structure carries out functions to sustain life?
- Cells
- 28. What did Virchow say about cells?
- Virchow said that all cells come from cells.
- 30. What is DNA?
- The genetic material in the cell.
- 31. What is a single-celled organism?
- It is a single cell that is living on its own.
- 32. What is the difference between a plant cell and an animal cell? (Short answer)
- A plant cell has a cell wall and chloroplasts and the animal cell does not.
- 33. What is the function of the cell membrane?
- It acts as a barrier between the inside of the cell and the cell's environment.
- 23. What is the function of the digestive system?
- It breaks down food into very small particles so that it can be used by all of your body's cells.
- 24. What is the function of the plant leaf?
- It captures light energy to make food for the plant.
- 25. What is the structure and the function of the lungs and the heart? (Short Answer)
-
1.Lungs-
structure: groups of air sacs
Function: breathing
2. Heart-
structure: set of muscle chambers
Function: pump blood - 26. What types of cells have a nucleus? (Short Answer)
- Eukaryotic
- 27. What was the first person to discover and name "the little boxes" seen under a microscope looking at?
- A slice of cork
- 19. Where in the cell does photosynthesis occur?
- In the chloroplasts
- 20. Where is DNA found?
- In cells (in the nucleus)
- 21. Why is an elephant larger than a human?
- An elephant has more cells than a human does.
- 22. What is the difference between a eukaryote and a prokaryote?
- Eukaryotes have a nucleus. Prokaryotes do not.
- 29. What is DNA and where is it found? (Short Answer)
- DNA is the genetic material. It is found in the nucleus of cells.
- 1. T or F All cells contain cytoplasm and organelles.
- True