WEEK 1-FINALS.pptx Educational presentat

Educational presentation

1. LIFE SCIENCE The evolving concept of life based on emerging pieces of evidence

2. What is LIFE?

3. ACTIVITY Think and write down in a sheet of paper your immediate observation of what characteristic of life is illustrated/ being portrayed in each photo.

4. A pygmy seahorse camouflaging itself with its environment

5. A jackrabbit’s ears opening wide, vividly showing its blood vessels

6. A butterfly obtaining fuel in the form of nectar from flowers

7. A sprouting seed.

8. A venus flytrap closing its trap.

9. A mother giraffe with its young calf standing beside her

10. A garden showing lush vegetation and diverse animals

11. BRANCHES OF BIOLOGY

12. ORIGIN OF LIFE (THEORIES)

13. 1. Divine Creation Life was put on Earth by divine forces. Common to the world’s religions and cultures. Does not always reject science. Question: scientific or not?

14. 2. Abiogenesis Life aroused from non-living matter. Oparin-Haldane theory : there was gradual chemical evolution; inorganic molecules reacted with an external energy to form building blocks; life formed in the primordial soup. Miller-Urey experiment showed that organic molecules could be produced under reducing conditions.

15. No atmospheric oxygen Nitrogen Carbon Ammonia Water Methane Hydrogen

16. PRIMORDIAL SOUP a solution rich in organic compounds in the primitive oceans of the earth, from which life is hypothesized to have originated. Nitrogen Carbon Ammonia Water Methane Hydrogen Organic Compound ENERGY UV Rays or lightning

17. 3. Spontaneous Generation start with Aristotle, the hypothetical process by which living organisms develop from nonliving matter, maggots on decaying meat

18. 4. Biogenesis Life arises from pre-existing life. Contested abiogenesis Redi’s and Pasteur’s experiments supported biogenesis and disproved abiogenesis.

19. TYPES OF REPRODUCTION

20. 5. Panspermia From Greek, ‘ panspermos ’, meaning “containing all kinds of seed” Life originated from other parts of the universe Life was transported by debris here on earth through an impact that sustained life Support: bombardment period

21. INDIVIDUAL ACTIVITY (essay) Which theory do you believe in? Expound your answer based on the discussion of each theory.

22. GROUP ACTIVITY (DEBATE NEXT MEETING) BIOGENESIS vs ABIOGENESIS

23. Early forms of life The first form of life is believed to have appeared some 3.5 billion years ago. The evidence of life is found in microfossils .

24. Early forms of life Prokaryotes are known as the earliest forms of life; no nucleus. They have survived the extreme conditions of the early environment. Photosynthetic organisms.

25. Early forms of life The cyanobacteria are the first photosynthetic organisms to form. Also known as the blue-green algae.

26. HOW MANY CELLS DOES A NORMAL HUMAN BODY HAVE?

27. Cytology- study of cells Cells - basic unit of life Robert Hooke- discovered and coined the term “cells”

28. BIOLOGICAL ORGANIZATION OF LIVING ORGANISMS

29. Biological organization of living organism Quarks and leptons – sub atom ( e,p,n ) – atom – molecule – organelles – cells – tissue – organ – organ system – organism – population – community – ecosystem – biome - biosphere

30. Elementary particles Biosphere Proton Electron Molecule Organelles Cell Tissue Organ System Population

31. 13. ELECTRON 14. PROTON 15. NEUTRON 16-17 (ORGANISMS) 18-20. 3 ATOMS

32. ELEMENTARY PARTICLES, SUB ATOM, and ATOM

33. Cell membrane

34. Cell wall

35. Mitochondria ATP – adenosine triphosphate apoptosis

36. Autolysis – cell destruction

37. Golgi complex/apparatus/bodies

38. plastid

39. vacuole

40. peroxisome

41. 1 BOND PAPER EACH (SHORT) DRAW AN ANIMAL AND A PLANT CELL WITH ITS ORGANELLES. WITH COLOR (LABEL ITS PARTS)

42. CELL MODEL

43. reporting Organ system in the human body