Science 77777777777777777 Week 2- Day 1.pptx

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1. LEARNING OBJECTIVES

2. Name examples of unicellular and multicellular organims.

3. Classify unicellular and multicellular organism.

4. Recognize the importance of unicellular and multicellular organisms on earth.

5. EUKARYOTIC PROKARYOTIC WHAT CAN YOU RECALL?

6. EUKARYOTIC PROKARYOTIC Has a nucleus Has membrane-bound organelles Has multiple chromosomes Examples: plants, animals, fungi Lacks a nucleus Lacks membrane-bound structures Has a singular piece of DNA Example: bacteria Both types have a plasma membrane, ribosomes, cytoplasm, and DNA.

7. UNICELLULAR, MULTICELLULAR, OR BOTH? CLICK HERE TO PLAY!

8. They are made up of only a single cell. They can be a prokaryote, like bacteria, or eukaryote like some protists.

9. ribosome ribosome plasma membrane cell wall capsule flagella cytoplasm cilia micro nucleus macro nucleus food vacuole contractile vacuole fimbriae oral groove

10. They are the most abundant organisms on Earth due to their ability to survive in various environments. You can find them almost everywhere—on coins, doorknobs, shoes, bags, pens, skin, and even inside your body.

11. Scientists estimat that bacteria have existed for more or less 3.5 billion years, making them among the oldest organisms on Earth.

12. Bacteria can be classified based on their shape: rod (bacillus), spherical (coccus), spiral (spirillum), comma (vibrio), or coiled (spirochete). Bacteria are so small that around 3000 of them could fit in the period at the end of this sentence.

13. Bacteria can live as a single cell or in colonies. A colony is a group of identical bacterial cells closely associated with one another, although they are independent of one another. They may join together in clusters or in chains.

14. The cell’s function must be interconnected with the other cells.

15. Though each cell of multicellular organisms contains similar organelles, the function and survival of one cell depends on the other cells.

16. Most fungi, plants, and animals are multicellular.

17. animals fungi

18. plants fungi

19. Click here to play!

20. Quiz Time

21. Question 1 Which of the following are characteristics of unicellular organisms? A. They consist of one cell B. They can perform all life processes within one cell C. They are always prokaryotic D. They can be eukaryotic

22. Question 2 What are the shapes of bacteria? A. Coccus (spherical) B. Bacillus (rod-shaped) C. Spirillum (spiral) D. Cuboidal

23. Question 3 Which of the following are examples of unicellular eukaryotes? A. Amoeba B. Paramecium C. Saccharomyces (yeast) D. E. coli

24. Question 4 Which of the following organisms are multicellular eukaryotes? A. Humans B. Mushrooms C. Bacteria D. Plants

25. Question 5 Which statements are true regarding prokaryotes? A. They lack a nucleus B. They are always multicellular C. They can be bacteria D. They are generally smaller than eukaryotes

26. Question 6 Which organisms are classified as bacteria? A. Archaea B. Fungi C. Cyanobacteria D. Eukarya

27. Question 7 What are some examples of multicellular organisms? A. Corals B. Fungi C. Bacteria D. Trees

28. Question 8 Which forms of life are considered unicellular? A. Protozoa B. Yeasts C. Molds D. Plants

29. Question 9 Which of the following are true about eukaryotic cells? A. They have membrane-bound organelles B. They can be unicellular C. They are always larger than prokaryotic cells D. They lack a defined nucleus

30. Question 10 Which of the following can be found in prokaryotic cells? A. Ribosomes B. Cell membrane C. Mitochondria D. Plasmids

31. Answer - 1 Which of the following are characteristics of unicellular organisms? A. They consist of one cell B. They can perform all life processes within one cell C. They are always prokaryotic D. They can be eukaryotic Correct Answers: A - They consist of one cell, B - They can perform all life processes within one cell, D - They can be eukaryotic

32. Answer - 2 What are the shapes of bacteria? A. Coccus (spherical) B. Bacillus (rod-shaped) C. Spirillum (spiral) D. Cuboidal Correct Answers: A - Coccus (spherical), B - Bacillus (rod-shaped), C - Spirillum (spiral)

33. Answer - 3 Which of the following are examples of unicellular eukaryotes? A. Amoeba B. Paramecium C. Saccharomyces (yeast) D. E. coli Correct Answers: A - Amoeba, B - Paramecium, C - Saccharomyces (yeast)

34. Answer - 4 Which of the following organisms are multicellular eukaryotes? A. Humans B. Mushrooms C. Bacteria D. Plants Correct Answers: A - Humans, B - Mushrooms, D - Plants

35. Answer - 5 Which statements are true regarding prokaryotes? A. They lack a nucleus B. They are always multicellular C. They can be bacteria D. They are generally smaller than eukaryotes Correct Answers: A - They lack a nucleus, C - They can be bacteria, D - They are generally smaller than eukaryotes

36. Answer - 6 Which organisms are classified as bacteria? A. Archaea B. Fungi C. Cyanobacteria D. Eukarya Correct Answers: A - Archaea, C - Cyanobacteria

37. Answer - 7 What are some examples of multicellular organisms? A. Corals B. Fungi C. Bacteria D. Trees Correct Answers: A - Corals, B - Fungi, D - Trees

38. Answer - 8 Which forms of life are considered unicellular? A. Protozoa B. Yeasts C. Molds D. Plants Correct Answers: A - Protozoa, B - Yeasts

39. Answer - 9 Which of the following are true about eukaryotic cells? A. They have membrane-bound organelles B. They can be unicellular C. They are always larger than prokaryotic cells D. They lack a defined nucleus Correct Answers: A - They have membrane-bound organelles, B - They can be unicellular, C - They are always larger than prokaryotic cells

40. Answer - 10 Which of the following can be found in prokaryotic cells? A. Ribosomes B. Cell membrane C. Mitochondria D. Plasmids Correct Answers: A - Ribosomes, B - Cell membrane, D - Plasmids

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