Presentation is loading. Please wait.

Presentation is loading. Please wait.

OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells.

Similar presentations


Presentation on theme: "OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells."— Presentation transcript:

1 OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells Homework: Quiz on Vocabulary terms (6 terms) from Section 1 (pages 34-37) on Monday. *Materials, Procedures, Variables and Trials due on 10/15 The Cell in Action Today is Day 1

2 To do: Animal/ Plant cell lab Jigsaw Terms to know! Demonstration – I need your help!

3 Jigsaw / Perform it! You will be put into a group. Your group will research your assigned process in which a cell exchanges with the environment. You may use your book and a computer. Once you finished with your research, write a rhythm or rap about your process. (Remember: what is involved? What types of particles? Do you need energy?) You need to be ready to perform THIS period! Your rap/ rhythm will be considered for a class work grade.

4 Diffusion Movement of particles from an area of high concentration to low concentration Can occur across membranes or outside cells Do not need energy

5 Osmosis The diffusion of water through the cell membrane

6 Passive Transport Diffusion of particles through proteins (From High to Low)

7 Active Transport Movement of particles through proteins against the normal direction of diffusion. The cell must use energy (ATP) for this to happen.

8 Endocytosis The cell membrane surrounds a particle and encloses itin a vesicle How large particles can be brought into cells

9 Exocytosis When large particles must be removed from the cell Vesicles are formed at the ER or GB and carry the particles to the cell membrane

10 Crossing Membranes Demonstration Red Rover anyone?

11 OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells Warm-up: none Homework: Quiz on Vocabulary terms (6 terms) from Section 1 (pages 34-37) on Monday. *SF stuff The Cell in Action Today is Day 2

12 To do: Jigsaw Demonstration – I need your help!

13 Jigsaw / Perform it! You will be put into a group. Your group will research your assigned process in which a cell exchanges with the environment. You may use your book and a computer. Once you finished with your research, write a rhythm or rap about your process. (Remember: what is involved? What types of particles? Do you need energy?) You need to be ready to perform THIS period! Your rap/ rhythm will be considered for a class work grade.

14 Terms/ Groups Group 1: osmosis Group 2: endocytosis Group 3: active transport Group 4: exocytosis

15 OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells Warm-up: TURN in Bibliography & Hypothesis. Homework: Review notes. Quiz on Monday. *SF stuff The Cell in Action Today is Day 3

16 To Do… Finish Jigsaw Diffusion DEMO (perfume/ food coloring) Slides: diffusion (TAKE GOOD NOTES!) http://science- class.net/PowerPoints/Diffusion_osmosis_files/frame.htm http://science- class.net/PowerPoints/Diffusion_osmosis_files/frame.htm http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1903 http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP11003

17 Jigsaw / Perform it! You will be put into a group. Your group will research your assigned process in which a cell exchanges with the environment. You may use your book and a computer. Once you finished with your research, write a rhythm or rap about your process. (Remember: what is involved? What types of particles? Do you need energy?) You need to be ready to perform THIS period! Your rap/ rhythm will be considered for a class work grade.

18 Conclusion What is the difference between diffusion and osmosis?

19 OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells Warm-up: Why did the particles in the graduated cylinder appear to move faster than those in the beaker? Homework: Review notes. Quiz on Monday. *SF stuff The Cell in Action Today is Day 4

20 To Do… Slides: diffusion (TAKE GOOD NOTES!) http://science- class.net/PowerPoints/Diffusion_osmosis_files/frame.htm http://science- class.net/PowerPoints/Diffusion_osmosis_files/frame.htm http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1903 http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP11003

21 Conclusion What type of exchange requires ATP?

22 OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells Warm-up: In your own words, describe endocytosis and exocytosis. Homework: Quiz on Monday. *SF stuff The Cell in Action Today is Day 5

23 Conclusion DEMO Slides: diffusion (TAKE GOOD NOTES!) http://science- class.net/PowerPoints/Diffusion_osmosis_files/frame.htm http://science- class.net/PowerPoints/Diffusion_osmosis_files/frame.htm http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1903 http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP11003 Slide 22 To Do

24 OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells Warm-up: QUIZ- right now! Homework: Review notes. *SF stuff The Cell in Action Today is Day 6

25 QUIZ DEMO Slides: diffusion (TAKE GOOD NOTES!) http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.phschool.com/science/biology_place/labbench/lab1/intro.html http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1903 http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP11003 To Do

26 OBJ 1-3. See previous slides. OBJ 4: Describe photosynthesis OBJ 5: Compare cellular respiration with fermentation. Homework: Read and take notes on pages 38-41 *SF stuff The Cell in Action Today is Day 7

27 To Do 1. Let’s review: http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1903 http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP11003 2. Endocytosis/ Exocytosis: http://highered.mcgraw- hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::535::/sites/dl/free/00 72437316/120068/bio02.swf::Endocytosis%20and%20Exocytosis http://highered.mcgraw- hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::535::/sites/dl/free/00 72437316/120068/bio02.swf::Endocytosis%20and%20Exocytosis 3. YouTube: http://www.youtube.com/watch?NR=1&v=y31DlJ6uGgE&feature=end screen http://www.youtube.com/watch?NR=1&v=y31DlJ6uGgE&feature=end screen http://www.youtube.com/watch?v=SSS3EtKAzYc&NR=1&feature=end screen http://www.youtube.com/watch?v=SSS3EtKAzYc&NR=1&feature=end screen 4. Exit ticket: Section Review on page 37 (check)

28 OBJ 1-3. See previous slides. OBJ 4: Describe photosynthesis OBJ 5: Compare cellular respiration with fermentation. Warm-up: next slide Homework: Read and take notes on pages 38-41 The Cell in Action Today is Day 8

29 To carry out the chemical activities that all cells to live, grow, and reproduce. Why do cells need energy?

30 Photosynthesis: the process by which plants capture light from the sun and convert it into sugar From Cell to Sun

31 Chlorophyll- the main pigment that absorbs light energy (why plants are green). Found in chloroplasts. Absorbing the Sun

32 Food that plants make supplies them with energy and also becomes a source of energy for organisms that eat plants. Without plants, consumers could not live! Why is photosynthesis important?

33 An arrow 6CO 2 6H 2 O Light Energy C 6 H 12 O 6 6O 2 Photosynthesis Cards

34 6CO 2 + 6H 2 O + Light Energy  C 6 H 12 O 6 + 6O 2 Plants use energy to take in Carbon Dioxide and water to produce food (glucose... A simple carbohydrate) and oxygen This sugar can now be stored as USABLE energy Photosynthesis Equation

35 C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + Energy (ATP) Energy stored as ATP Any inital energy release is in the form of heat Photosynthesis/ Respiration

36 Plants have to make their food, we buy, find, hunt our food. (Remember we are consumers) Now that we have food, our cells can take that food to make usable energy by... Cellular Respiration: The process of producing ATP in the cell from oxygen and glucose; releases carbon dioxide & water. Okay now we have food...

37 Means “breathing” … breathing supplies your cells with oxygen so your cells can perform cellular respiration Obtain energy from food Takes place in mitochondria Respiration

38

39 Fermentation: the breakdown of sugars to make ATP in the absence of oxygen (not as much ATP, partial breakdown of sugar) (Sometimes your muscles don’t get enough O2….cramping! Runner’s stitch! But what if there’s no Oxygen

40 Lactic Acid- (muscles)... Alcohol- occurs in yeast & bacteria. Yeast cells make carbon dioxide and alcohol during the fermentation of sugar. 2 types of fermentation

41 OBJ 6: Explain how cells produce more cells. OBJ 7: Discuss the importance of mitosis OBJ 8: Explain how cell division differs in animals and plants. Warm-up: How are photosynthesis and respiration related? Homework: Complete Section Review on text pages 37 and 41 The Cell in Action Today is Day 9

42 Clarification HOW would each of the following materials get through a cell membrane A. Pure Water = osmosis; simple diffusion B. Sugar entering a cell that already contains a high concentration of particles = according to your text: active transport b/c particles are going from an area of low concentration to an area of high concentration C. Sugar entering a cell that has a low concentration of particles = Question: can we assume that there is a higher concentration outside of the cell? If “yes”, passive transport; if “no”, diffusion D. A large protein = endocytosis or exocytosis

43 Active vs. Passive Transport Passive Transport: Simple diffusion and osmosis = DOES not require energy (back and forth) Channel diffusion= involves channel proteins where material moves through an open, aqueous pore; can be regulated; ions and charged particles can pass through the open pore. Facilitated (Pumps) diffusion = uses proteins; can occur back and forth http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapter2/animation__how_facili tated_diffusion_works.html Active Transport: Primary active transport = directly uses ATP Secondary active transport = does not directly use ATP. It takes advantage of a previously existing concentration gradient (via carriers).

44 A Different Look

45 To Do: Notes on photosynthesis (slides 31- 42) Begin “The Cell Cycle”

46 The Cell Cycle Includes the period of mitosis plus the time in between Usually takes about 18-24 hours in mammals (some fly embryos can divide their cells in 8 minutes!) http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapter2/animation__how_the_cell_cycle _works.html Explain why fermentation occurs in your muscles when you all of a sudden get a cramp while running. Conclusion

47 Cell Cycle & Mitosis OBJ 1-8: See above. Warm-up: Check SR on 37 and 41. In your own words, explain what the below statement means: “Biology is the only science in which multiplication means the same thing as division.” Homework: Read/take notes/ Review pages 42-45. Complete the Section Review. HINT: review photosynthesis and respiration equations. To Do: continue slides 42 & 48 Cell Cycle &Mitosis Today is Day 9/10

48 The Cell Cycle Includes the period of mitosis plus the time in between (Interphase) Usually takes about 18-24 hours in mammals (some fly embryos can divide their cells in 8 minutes!) http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapter2/animation__how_the_cell_cycle_works.html

49 Take Note Read page 42-45. Purpose for reading: To explain how cells produce more cells Task1: Under each heading, write the main idea and 2-3 supporting facts. Task 2: Complete the section review on page 45.

50 Reproduction Asexual-genetic material from 1 parent Ex: copy their own genetic material and split in two Sexual-genetic material from 2 parents Ex: sperm and egg

51 Asexual Reproduction “splitting into two parts”

52 Reproduction Cell Division- division of the nucleus and cytoplasm resulting in 2 new cells Division of cytoplasm-cytokinesis 2 new cells-daughter cells Broken into 4 distinct parts Prophase, Metaphase, Anaphase, Telophase

53 Cell Cycle: Gap 0 (G0) Resting Time Can be permanent or temporary Example: neurons stay in Gap 0 because they don’t grow or replicate

54 Cell Cycle: Gap 1 (G1) Cell growth Increase in size Produce RNA Put together proteins Prepares for DNA synthesis

55 Cell Cycle: S Phase or Synthesis DNA reproduction DNA copies in order to make 2 daughter cells during mitosis

56 Cell Cycle: Gap 2 (G2) Continue to grow Produce proteins Checkpoint for entering mitosis In your own words, describe what happens to the chromosomes during mitosis. What does the cell spend most of its time doing? Conclusion

57 Genetic Material Chromatin-long fibers that contain DNA and protein Chromosomes-condensed chromatin Centromeres-region that holds together 2 chromatids Sister Chromatids-2 duplicated copies of chromosomes Centromere Sister Chromatids

58

59 Interphase Cells spend majority of time in this phase G1, G2, & S phase

60 Mitotic Phase or M Phase Cell growth and protein synthesis stops All energy focused on making daughter cells This phase only last about 2 hours in mammals

61 Mitosis Phase 1 Chromosomes are visible Condensed in the nucleus Nuclear envelope breaks down Spindles form

62 Mitosis Phase 2 Chromosomes line up in the middle of the cell Spindle fully formed

63 Mitosis Phase 3 Sister chromatids separate (now a daughter chromosome) Spindles pull chromosomes apart

64 Mitosis Phase 4 Chromosomes reach the poles of the spindles Spindle disappears Nuclear envelope forms around chromosomes Cytokinesis begins Daughter cells form

65 Cytokinesis Pinching off of cytoplasm 2 daughter cells are formed Not officially a part of mitosis

66

67 Let’s Review!

68 Cell Cycle & Mitosis OBJ 1-8: See above. Homework: study G0, G1, G2, S phase and M phase (including 4 stages in M phase). TEST on Ch. 2 on 11/12 To Do: continue previous slides; handout; review video http://www.youtube.com/watch?v=lf9rcqifx34 Cell Cycle &Mitosis Today is Day 11

69

70

71

72 Name that phase!

73

74 Cell Cycle & Mitosis OBJ 1-8: See above. Homework: Complete chapter review on text pages 50-51 #1-14 and #20-23. TEST on Ch. 2 on 10/30 To Do: review slides/handout; activity Cell Cycle &Mitosis Today is Day 12/13

75 Activity Make your own mitosis stages. 1. Cut out 4 cells (3 using the lysol bottles, if you want to trace) 2. Cut out chromosomes 3. Glue chromosomes on your cell to represent the phase. 4. Repeat for all 4 phases. Why do cells undergo mitosis? Wrap Up

76 Cell Cycle & Mitosis OBJ 1-8: See above. Homework: Study/ finish today’s classwork. TEST on Ch. 2 on 10/30 To Do: check Chapter Review; activity Cell Cycle &Mitosis Today is Day 14/15


Download ppt "OBJ 1: Explain the processes of diffusion & osmosis. OBJ 2: Compare active & passive transport OBJ 3: Explain how large particles get in and out of cells."

Similar presentations


Ads by Google