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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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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

slide3
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

slide7

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

pro s do not have a nucleus
Pro’s do not have a nucleus

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

put the coverslip on at an angle
Put the coverslip on at an angle

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

slide11
wilt

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

some things can get through and some cannot
Some things can get through and some cannot

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

slide15
14. What kind of transport moves substances against the concentration gradient(against the flow of traffic)

Active transport

16 what does the nucleus do
16. What does the nucleus do?

Controls all the day to day activities

17 what does the mitochondria do
17. What does the mitochondria do?

Makes energy to power the cell

18 what does the lysosome do
18. What does the lysosome do?

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

19 what is diffusion
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
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
22 what theory was a direct result of the microscope being invented
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

24 what is an important function of the cell part you see below
24. What is an important function of the cell part you see below?
  • Maintaining homeostasis
  • Controlling what goes out and what goes in
26 describe what is happening in the picture
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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