General Biology 1 for STEM presentation.pptx

a quality powerpoint presentation

1. HOLY MASS Tomorrow @ 6:30 Reader Choir

2. ZONES Stairs at the accounting office Sheds

3. EVENT ON FRIDAY Commemoration of the Birth of Mary Poster Making Quiz Bee

4. SCIENCE CAMP Poster & Slogan Photo exhibit Speech choir Sayawit Docu-kalikasan Guardians of Nature Costume: Indigenous Plastic Paper

5. CELL ORGANELLES LEOFF REYES LESSON E

6. CELLS

7. OBJECTIVE Describe the structure and function of major and subcellular organelles

8. CELL ORGANELLES All the processes that occur within an organism are supported by the cell. The cell contains different parts called organelles.

9. CELL MEMBRANE The cell is bound by the cell membrane. phospholipid embedded with proteins and carbohydrates

10. CELL MEMBRANE Semipermeable (not everything can pass through) allows the cell to absorb, secrete, or excrete

11. CELL MEMBRANE Selective Controls entry and exit of the cell.

12. CYTOPLASM Semifluid substance Contains electrolytes, metabolites, RNA, and synthesized proteins

13. CYTOPLASM Site for glycolysis and protein and fat synthesis Where organelles are suspended.

14. CYTOPLASM Semifluid substance Contains electrolytes, metabolites, RNA, and synthesized proteins

15. CYTOPLASM Cytoplasm has no form, but it has a structure due to the cytoskeleton

16. CYTOSKELETON a network of protein filaments (microfilaments, intermediate filaments, and microtubules)

17. CYTOSKELETON provide structural support, maintain cell shape, and facilitate cell movement

18. NUCLEUS contains the cell's genetic material (DNA) responsible for regulating gene expression and DNA replication

19. NUCLEUS also houses the nucleolus

20. NUCLEOLUS responsible for the synthesis and assembly of ribosomal RNA

21. RIBOSOMES the cellular machinery responsible for protein synthesis. reads the genetic code and assembles amino acids

22. ENDOPLASMIC RETICULUM a network of membranes that comes in two types: Smooth and Rough

23. ROUGH ER Studded with ribosomes, it's involved in protein synthesis, folding, and modification

24. SMOOTH ER Lacks ribosomes and is involved in lipid metabolism, detoxification, and calcium ion storage

25. GOLGI APPARATUS processes, modifies, and sorts proteins and lipids synthesized in the ER

26. GOLGI APPARATUS It packages them into vesicles for transport to other cell destinations or outside the cell.

27. LYSOSOMES contain digestive enzymes that break down waste materials, cellular debris, and foreign substances

28. LYSOSOMES maintains cellular cleanliness and recycling cellular components

29. MITOCHONDRIA The powerhouse of the cell carries out cellular respiration, converting nutrients and oxygen into ATP

30. CELL WALL hair-like structures extend from the cell surface and are involved in cell movement

31. CHLOROPLAST sites of photosynthesis convert light energy into chemical energy (glucose) and produce oxygen as a byproduct

32. VACUOLE storage organelles store water, nutrients, and pigments

33. THANK U

34. ACTIVITY Organelle Nickname Choose 2 organelles and give them a nickname and explain how you came up with it. Example: Organelle: Mitochondria Nickname: NUVELCO Reason: NUVELCO acts as a powerhouse for N.Vizcaya . Mitochondria also act as a powerhouse but for the cell, except there are no brownouts. 1/4 Crosswise

35. PLANT ANIMAL V S No Cell Wall Has Cell Wall Both have Vacuoles Has one large central vacuole Has small temporary vacuole No Chloroplast Has Chloroplast

36. PLANT ANIMAL V S Has Lysosomes No Lysosomes Some have Cilia and Flagella No Centrioles Has Centrioles Does not require Cilia and Flagella

37. PLANT ANIMAL V S Balaenoptera musculus Sequoiadendron giganteum

38. PLANT ANIMAL GROUP 1 GROUP 2

39. PLANT Diameter: 1 foot 6 inches Label the organelles. Drop Test

40. MEIOSIS special type of division exclusive for gametes

41. MEIOSIS I II MEIOSIS

42. MEIOSIS I INTERPHASE DNA is copied.

43. MEIOSIS I PROPHASE I Chromosomes pair up.

44. MEIOSIS I METAPHASE I Chromosomes line up at the equator.

45. MEIOSIS I ANAPHASE I Chromosomes are pulled apart.

46. MEIOSIS I TELOPHASE I Cell pinches in the middle.

47. MEIOSIS II PROHASE ii Two daughter cells are made.

48. MEIOSIS II METAPHASE II Chromosomes line up at the equator.

49. MEIOSIS ANAPHASE II Sister chromatids are pulled apart. II

50. MEIOSIS TELOPHASE II Cell pinches in the middle. II

51. MEIOSIS From here, there should be 4 granddaughter cells II

52. An organism has six chromosomes. How many chromosomes will there be in each daughter cell after… Mitosis? Meiosis? 6 3

53. CELL MEMBRANE

54. What do these images have in common with the CAT officers at the gate?

55. CELL MEMBRANE made up with a phospholipid bilayer and embedded proteins

56. PHOSHOLIPID BILAYER are molecules with hydrophilic (water-attracting) heads and hydrophobic (water-repelling) tails

57. INTEGRAL PROTEINS play various roles, including transport of molecules, cell signaling, and cell adhesion.

58. PERIPHERAL PROTEINS not embedded in the lipid bilayer but are instead associated with the membrane's surface

59. GLYCOPROTEINS glycosylated, meaning they have carbohydrate chains attached to them. play a role in cell recognition, cell adhesion, and communication with other cells.

60. CHOLESTEROL interspersed within the phospholipid bilayer regulate the fluidity and stability of the membrane.

61. CHOLESTEROL Cholesterol molecules prevent the fatty acid tails of phospholipids from packing too closely together, which maintains membrane fluidity.

62. FLUID MOSAIC MODEL This model illustrates the dynamic and heterogeneous nature of the membrane, where proteins and lipids can move laterally within the bilayer.

63. SELECTIVE PERMEABILITY Permeability - a measure of the ease of passage of liquids or gases or specific chemicals through the material

64. SELECTIVE PERMEABILITY Small, nonpolar molecules like oxygen and carbon dioxide can diffuse freely through the lipid bilayer.

65. SELECTIVE PERMEABILITY while larger or polar molecules typically require the assistance of membrane proteins to cross.

66. ACTIVITY a. Explain the role of integral proteins in the cell membrane. b. What is the significance of selectively permeable membranes in cells? c. How does the presence of glycolipids and glycoproteins on the cell membrane contribute to cell function? Provide concise answers to the following questions.