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Cell review PowerPoint PPT Presentation


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Cell review. 1. A bacteria can change the types of proteins it has in its membrane depending on which one it detects o the outside env’t. What part of the cell recognizes different substances on the outside env’t?. ER Cell membrane Nucleus lysosome. B.

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Cell review

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Cell review l.jpg

Cell review


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1. A bacteria can change the types of proteins it has in its membrane depending on which one it detects o the outside env’t. What part of the cell recognizes different substances on the outside env’t?

  • ER

  • Cell membrane

  • Nucleus

  • lysosome

B


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2. What came first, that we use in class, in the scientific discovery of living things?

  • Light microscope

  • Cell theory

  • Electron microscope

  • Model of DNA

A


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3. What is the total magnification if the eyepiece is 10X and the objective is 25X?

250X


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4. What is the one thing all eukaryotic cells have in common?

A nucleus


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5. What is on the outside of the endoplasmic reticulum that makes it look rough?

Ribosomes


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C

A student was studying the responses of cells to solutions of varying salt concentrations. Which solution below would cause no change in cell size?

B

A

D

C


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7. If a cell has a tail, what might it be used for?

moving


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Pro’s do not have a nucleus

8. What is the difference between a prokaryotic cell and a eukaryotic cell?


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Put the coverslip on at an angle

9. What is the best way to put on a coverslip to avoid getting air bubbles?


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wilt

10. If a plant cell has lost water what will the plant tend to do?


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Some things can get through and some cannot

11. Why is the cell membrane called semi-permeable?


12 what helps this algae move l.jpg

12. What helps this algae move?

flagella


13 what is the cell membrane composed of besides proteins l.jpg

13. What is the cell membrane composed of besides proteins?

lipids


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14. What kind of transport moves substances against the concentration gradient(against the flow of traffic)

Active transport


15 the main function is to give a plant cell its rigid structure l.jpg

15. The ______ ______ main function is to give a plant cell its rigid structure.

Cell Wall


16 what does the nucleus do l.jpg

16. What does the nucleus do?

Controls all the day to day activities


17 what does the mitochondria do l.jpg

17. What does the mitochondria do?

Makes energy to power the cell


18 what does the lysosome do l.jpg

18. What does the lysosome do?

Digests molecules in the cell that are worn out or not working anymore


19 what is diffusion l.jpg

19. What is diffusion?

Movement of molecules from area of high concentration to low concentration.


20 what are the 3 parts of the cell theory l.jpg

20. What are the 3 parts of the cell theory?

  • All living things are made of cells

  • Cells are the basic unit of structure and function

  • All cells come from pre-existing cells


21 what organelle transforms light energy into chemical energy l.jpg

21. What organelle transforms light energy into chemical energy?

Chloroplast


22 what theory was a direct result of the microscope being invented l.jpg

22. What theory was a direct result of the microscope being invented?

  • Theory of natural selection

  • Gaia thoery

  • Theory of independent assortment

  • Cell theory

D


23 what cell organelle would hold onto extra food water or wastes l.jpg

23. What cell organelle would hold onto extra food, water or wastes?

vacuole


24 what is an important function of the cell part you see below l.jpg

24. What is an important function of the cell part you see below?

  • Maintaining homeostasis

  • Controlling what goes out and what goes in


25 what organism contains cell walls l.jpg

25. What organism contains cell walls?

Plants


26 describe what is happening in the picture l.jpg

26. Describe what is happening in the picture?

Plasmolysis- water has left the plant cell, and all the organelles are smooshed up in the middle of the cell.


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