Your SlideShare is downloading. ×
Mr. Cruz Chapter 10 Cell Cycle
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Mr. Cruz Chapter 10 Cell Cycle

4,232
views

Published on

Chapter 10 Miller-Levine Biology.

Chapter 10 Miller-Levine Biology.

Published in: Education, Technology

0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
4,232
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
261
Comments
0
Likes
2
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Sarahi Ibarra Salazar Melissa Guzmán Hernández Karla Giselle Ibarra Arriaga Iliana Esquivel Garza Alessandro Andriulo Garza Centro de Investigación y Desarrollo de Educación Bilingüe Biology MC Alejandro Cruz
  • 2. Cell growth and division
    • Cell growth
    • Cell division
    • Regulating the cell cycle
    • Activities
    Back Cell growth and division - English
  • 3. Cell growth
    • Limits to cell growth
    • Division of the cell
    Back Cell growth - Cell growth and division
  • 4. Cell division
    • Chromosomes
    • Cell cycle
    • Mitosis
    • Cytokinesis
    Back Cell division - Cell growth and division
  • 5. Regulating the Cell Cycle
    • Controls on cell division
    • Cell Cycle regulators
    • Uncontrolled cell growth
    Back Regulating the cell cycle - Cell growth and division
  • 6. Limits to cell growth
    • DNA overload
    • Exchanging materials
    • Ratio of surface area to volume
    Back Limits to cell growth - Cell growth and division
  • 7. DNA overload
    • When a cell is small, its DNA is able to meet all of the cell’s needs.
    • As the cell grows it produces more organelles, but the DNA is not replicated and it cannot meet the cell’s needs.
    Back DNA overload - Limits to cell growth
  • 8. Exchanging materials
    • The rate at which food and oxygen are used up and waste products are produced depends on the cell’s volume.
    • As the cell grows it becomes more difficult for it to get rid of wastes and to get food and oxygen into the cell.
    Back Exchanging materials - Limits to cell growth
  • 9. Ratio of surface area to volume
    • Imagine a cell that is shaped like a cube.
    • The surface area of a cell would be equal to length x width x number of sides(6) of a cell.
    • The volume of the cell would be equal to length x width x height of the cell.
    • The volume of the cell increases more rapidly than the surface area.
    Back Example Ratio of surface area to volume - Limits to cell growth
  • 10. Example Cell size Surface area volume Ratio of surface area to volume Back Ratio of surface area to volume - Limits to cell growth
  • 11. Division of the cell
    • The process by which a cell divides into two new daughter cells is called cell division.
    • Before the cell divides, it replicates all of its DNA.
    • This process reduces cell volume and solves the DNA overload problem.
    Back Division of the cell – Cell growth
  • 12. Chromosomes
    • The information that is passed from one generation to the next is carried by chromosomes.
    • They are made up of DNA and proteins
    • A chromosome consists of two sister chromatids.
    Back Chromosomes – Cell division
  • 13. Cell cycle
    • The cell cycle is divided into four phases, which are:
      • G1 phase: the cell grows
      • S phase: DNA is replicated
      • G2 phase: The cell prepares to divide
      • M phase: mitosis and cytokinesis
    • The G1, S and G2 phases are part of the interphase in the cell cycle.
    Back Cell cycle – Cell division
  • 14. Mitosis Back Prophase Metaphase Anaphase
    • Telophase
    Cytokinesis Cell Cycle Mitosis – Cell division
  • 15. Prophase
    • During prophase, the chromosomes become visible. The centrioles take positions in opposite sides of the cell and form the spindle.
    Back Next Prophase - Mitosis
  • 16. Metaphase
    • During metaphase, the chromosomes line up across the center of the cell.
    • Microtubules connect the centromere of each chromosome to the two poles of the spindle.
    Back Next Return Metaphase - Mitosis
  • 17. Anaphase
    • During Anaphase, the centromeres that joined the sister chromatids split becoming individual chromosomes.
    Back Next Return Anaphase - Mitosis
  • 18. Telophase
    • The chromosomes move to opposite sides of the cell and a nuclear envelope forms around each group of chromosomes.
    Back Return Telophase - Mitosis
  • 19. Cytokinesis
    • The process in which the cytoplasm separates, forming completely the two new daughter cells.
    • It usually occurs about the same time as Telophase.
    • This occurs different in plants and in animals.
    Back Cytokinesis – Cell division
  • 20. Animals
    • The cell membrane is drawn inwards until the cytoplasm is pinched into two nearly equal parts.
    • Each part contains its own nucleus and cytoplasmic organelles.
    Back Animals - Cytokinesis
  • 21. Plants
    • A structure known as the cell plate forms midway between the divided nuclei.
    • The cell plate gradually develops into a separating membrane.
    • A cell wall then begins to appear in the cell plate.
    Back Plants - Cytokinesis
  • 22. Controls on cell division
    • Cells have a characteristic that allows them to know when to stop growing and dividing.
    • When cells come into contact with other cells, they respond by not growing.
    Back Controls on cell division – Regulating the cell cycle
  • 23. Cell cycle regulators
    • The cyclin is a protein that regulates the cell cycle in eukaryotic cells.
    • There are two types of regulating proteins:
      • Internal Regulators
      • External regulators
    Back Cell cycle regulators – Regulating the cell cycle
  • 24. Internal regulators
    • Allow the cell cycle to proceed only when certain processes have happened inside the cell.
    • It prevents a cell from entering anaphase until all its chromosomes are attached to the spindle.
    Back Internal regulators – Cell cycle regulators
  • 25. External regulators
    • They are proteins that respond to events outside the cell
    • They direct cells to speed up or slow down the cell cycle
    • They prevent excessive cell growth
    Back External Regulators – Cell cycle regulators
  • 26. Uncontrolled cell growth
    • The consequences of uncontrolled cell growth in a multicellular organism are very severe.
    • An example could be cancer, which is a disorder in which some of the body’s own cells lose the ability to control growth
    • Cancer cells do not respond to the signals that regulate the growth of most cells.
    Back Uncontrolled cell growth – Regulating the cell cycle
  • 27. Activities Back
  • 28. Videos
  • 29. Solution Back Cell Cytokinesis Metaphase Prophase Centriole Cytoplasm Mitosis Spindle Chromosomes DNA Nuclear envelope telophase E F N I Y O U Y R Z Y I S W W S J G Y Z V D M I T O S I S H A V B E S V E C W A C T W A U H Z V M S A L P O T Y C X Q H P C S A C A Q V C L T F Z M I A K H O X S H E S E O C E D Q T I C R C P N P S P K K N H R E I E W O T A A O X I A S N Y M N L B R M H L Z L N N J P Q T O L I D P O J D G E B D R V U E O Z O M V S X F S T L L S W L D R X B M L O V I G W A E E S P G B C Y G I M S T I D R N U C L E A R E N V E L O P E Y S Q W I Y E I P J S S T C Y
  • 30. Back E F N I Y O U Y R Z Y I S W W S J G Y Z V D M I T O S I S H A V B E S V E C W A C T W A U H Z V M S A L P O T Y C X Q H P C S A C A Q V C L T F Z M I A K H O X S H E S E O C E D Q T I C R C P N P S P K K N H R E I E W O T A A O X I A S N Y M N L B R M H L Z L N N J P Q T O L I D P O J D G E B D R V U E O Z O M V S X F S T L L S W L D R X B M L O V I G W A E E S P G B C Y G I M S T I D R N U C L E A R E N V E L O P E Y S Q W I Y E I P J S S T C Y
  • 31. Solución ADN Citocinesis Huso Profase Anafase Citoplasma Metafase Telofase Celula Cromosomas Mitosis H O S U H S A M O S O M O R C H C P X W T Q U P U L V L K D U X E L K L N X I R T Q X O A E Y H A I T L V C K O M N E I S R C N M I T O S I S F Y K C A I I A A D F P U E O C A I Q F O U F A M E S S M C N T S A A L O A V M S A A W F O D B E T I C S N M F A O W C V V A B E B L E D O N I L I P F L C G M T H U L C R R N P V L E C X N P K E Q Q Q E X P O L R J V W R T S D H S M B F U T Y X M N W C W W I U F D L C D I B E B R Z C S N G C A N L O K C X
  • 32. H O S U H S A M O S O M O R C H C P X W T Q U P U L V L K D U X E L K L N X I R T Q X O A E Y H A I T L V C K O M N E I S R C N M I T O S I S F Y K C A I I A A D F P U E O C A I Q F O U F A M E S S M C N T S A A L O A V M S A A W F O D B E T I C S N M F A O W C V V A B E B L E D O N I L I P F L C G M T H U L C R R N P V L E C X N P K E Q Q Q E X P O L R J V W R T S D H S M B F U T Y X M N W C W W I U F D L C D I B E B R Z C S N G C A N L O K C X
  • 33. Write the name of the phase in the cell cycle in the corresponding figure Back
  • 34. Match word with definition
    • Mitosis
    • Cytokinesis
    • Chromatids
    The second stage, division of the cytoplasm. ( ) The first stage, division of the cell nucleus ( ) One of the two identical “sister” parts of a duplicated chromosome. ( ) B A C NEXT Back
  • 35. Match word with definition Usually located in the middle of the chromatids ( ) Period of the cell cycle between cell divisions ( ) The series of events that cells go through as they Grow and divide ( ) First and longest phase of mitosis ( ) Two tiny structures located in the cytoplasm of animal Cells near the nuclear envelope ( ) Fanlike microtubule structure that helps separate the Chromosomes during mitosis ( )
    • Prophase
    • Spindle
    • Centromeres
    • Cell cycle
    • Centrioles
    • Interphase
    C F D A E B Back
  • 36. Are you ready to test your knowledge? Why don’t we check it now! Press any button Back
  • 37. Mini-Test
    • How do you call the process in which a cell divides into two new daughter cells?
    a) Cell fractioning b) Cell division What is the second stage in the cell cycle, where the cytoplasm divides? a) Mitosis b) Cytokinesis Click here for another question! Click here for another question!
  • 38.
    • Biologists divide the events of mitosis into four phases, which are they?
    a) G 1 Phase, Sphase, G 2 Phase, cytokinesis b) Prophase, metaphase, anaphase, telophase When are the chromosomes replicated, or “copied”? a) Before cell division b) After cell division Click here for another question! Click here for another question!
  • 39.
    • What is the name for the proteins that regulate the timing of the cell cycle in eukaryotic cells?
    a) Centrioles b) Cyclin What kind of cells do not respond to the signals that regulate the growth of most cells? a) Cancer cells b) Typhoid fever Click here for another question! Click here!
  • 40.
    • This is all for today! Thank you! You have been such a great listener and/or student!.
    Back
  • 41.
    • Of course you were right!
    Back to test
  • 42.
    • I’m sorry… You need to study more.
    Back to test
  • 43.
    • Great job!
    Back to test
  • 44.
    • Try it again!
    Back to test
  • 45.
    • You’re always correct!
    Back to test
  • 46.
    • Oh no! We have some trouble here! Please check your answers.