1 00:00:04,849 --> 00:00:20,269 Hi, everyone. In this video, we are going to practice lesson two in our natural science subject. 2 00:00:21,149 --> 00:00:34,490 From a cell to an organism. Mirror word. From a cell to an organism. 3 00:00:34,490 --> 00:00:41,009 What is a cell? 4 00:00:44,140 --> 00:00:48,439 A cell is the smallest living unit. 5 00:00:52,100 --> 00:01:11,719 We need a microscope to see individual cell, like a population of bacteria on a petri dish. 6 00:01:14,159 --> 00:01:14,739 Mirror word. 7 00:01:15,879 --> 00:01:18,519 What is a cell? 8 00:01:18,519 --> 00:01:25,849 A cell is the smallest living unit. 9 00:01:29,030 --> 00:01:39,810 We need a microscope to see individual cells, 10 00:01:42,650 --> 00:01:50,170 like a population of bacteria on a petri dish. 11 00:01:50,170 --> 00:02:03,430 One cell, many cells. 12 00:02:03,790 --> 00:02:29,810 Unicellular organisms, multicellular organisms, unicellular organisms only have one cell. 13 00:02:33,039 --> 00:02:40,259 Multicellular organisms have many cells. 14 00:02:40,259 --> 00:02:49,590 The cell carries out three vital functions. 15 00:02:52,319 --> 00:02:58,979 Different cells have a different function. 16 00:03:02,719 --> 00:03:08,620 Algae and bacteria are unicellular organisms. 17 00:03:08,620 --> 00:03:19,599 Plants and animals are multicellular organisms. 18 00:03:20,319 --> 00:03:22,560 Mirror word. 19 00:03:24,300 --> 00:03:25,719 One cell. 20 00:03:28,539 --> 00:03:30,580 Many cells. 21 00:03:33,319 --> 00:03:36,900 Unicellular organisms. 22 00:03:39,960 --> 00:03:43,560 Multicellular organisms. 23 00:03:43,560 --> 00:03:55,120 Unicellular organisms only have one cell. 24 00:03:58,479 --> 00:04:07,780 Multicellular organisms have many cells. 25 00:04:11,280 --> 00:04:17,319 The cell carries out three vital functions. 26 00:04:17,319 --> 00:04:26,439 Different cells have different functions. 27 00:04:29,319 --> 00:04:35,920 Fungi and bacteria are unicellular organisms. 28 00:04:38,920 --> 00:04:49,319 Plants and animals are multicellular organisms. 29 00:04:49,319 --> 00:05:09,949 Now, are cells organized? 30 00:05:13,319 --> 00:05:22,579 Multicellular organisms have five levels of organization. 31 00:05:25,660 --> 00:05:28,160 Level one, cells. 32 00:05:30,300 --> 00:05:32,939 Level two, tissue. 33 00:05:35,680 --> 00:05:38,740 Level three, organ. 34 00:05:38,740 --> 00:05:43,899 Level four, systems. 35 00:05:43,959 --> 00:05:50,060 Level five, living organisms. 36 00:05:54,009 --> 00:05:54,589 Mirror word. 37 00:05:56,569 --> 00:05:57,709 Level one. 38 00:05:58,209 --> 00:06:02,870 No, our cells organized. 39 00:06:05,870 --> 00:06:15,910 Multicellular organisms have five levels of organization. 40 00:06:18,740 --> 00:06:19,540 Level one. 41 00:06:19,540 --> 00:06:42,519 cells. Level two, tissue. Level three, organ. Level four, systems. Level five, living organism. 42 00:06:42,519 --> 00:06:54,199 Level 1. Cells are the smallest living unit. 43 00:06:55,680 --> 00:07:02,579 Level 2. Cells are grouped together to form tissue. 44 00:07:05,170 --> 00:07:12,050 Level 3. Tissues are grouped together to form an organ. 45 00:07:12,050 --> 00:07:20,509 Level 4. Organs work together and form systems. 46 00:07:20,550 --> 00:07:29,220 Level 5. Systems form a living organism. 47 00:07:30,740 --> 00:07:32,579 Mirror word. 48 00:07:34,300 --> 00:07:40,800 Level 1. Cells are the smallest living unit. 49 00:07:43,529 --> 00:07:52,189 Level 2. Cells group together to form tissue. 50 00:07:52,189 --> 00:08:04,779 Level 3. Tissues group together and form an organ. 51 00:08:07,350 --> 00:08:16,149 Level 4. Organs work together and form systems. 52 00:08:16,149 --> 00:08:27,060 Level 5. Systems form a living organism. 53 00:08:27,060 --> 00:08:44,809 Animal cells and plant cells. 54 00:08:48,679 --> 00:08:54,909 Animal cell, plant cell. 55 00:09:03,440 --> 00:09:08,419 Rectangular, oval, or irregular shape. 56 00:09:08,799 --> 00:09:09,799 That's for animal. 57 00:09:11,080 --> 00:09:15,000 Plant cell, regular shapes. 58 00:09:15,000 --> 00:09:50,120 Mirror word. Animal cell. Plant cell. Animal cell. Rectangular. Oval. Or irregular shape. Plant cell. Regular shape. 59 00:09:50,120 --> 00:10:11,830 animal cells and plant cells. 60 00:10:13,350 --> 00:10:21,909 Number one, cell wall makes the plant rigid. 61 00:10:21,909 --> 00:10:34,649 Number two, cell membrane controls substance 62 00:10:34,649 --> 00:10:38,870 entering and leaving the cell. 63 00:10:38,870 --> 00:10:47,590 Number three, vacuums, contain water. 64 00:10:52,820 --> 00:10:59,360 Nucleus, controls cell functions. 65 00:11:02,399 --> 00:11:08,980 Number five, chloroplast, contains chlorophyll. 66 00:11:08,980 --> 00:11:23,620 Mirror word, cell wall, makes the plant rigid. 67 00:11:23,940 --> 00:11:38,450 Cell membrane controls substance entering and leaving the cell. 68 00:11:38,450 --> 00:11:41,279 Very sweet. 69 00:11:42,720 --> 00:11:45,700 Vacuoles contain water. 70 00:11:48,419 --> 00:11:55,580 Nucleus controls cell functions. 71 00:11:57,600 --> 00:11:58,259 Number five. 72 00:11:59,179 --> 00:12:00,240 Chloroplast. 73 00:12:00,759 --> 00:12:25,740 contained chlorophyll. Okay, let's check the metaphors of the cell parts. So for 74 00:12:25,740 --> 00:12:39,039 cell wall, it's the armor. The cell membrane is the door. The vacuole is the 75 00:12:39,039 --> 00:12:51,590 water well the nucleus is the brain and the chloroplast is the solar panel 76 00:12:51,590 --> 00:13:14,690 mirror word cell parts cell wall armor cell membrane door vacuum water well 77 00:13:14,690 --> 00:13:23,519 nucleus, brain, chloroplast, solar, pet. 78 00:13:26,529 --> 00:13:30,549 And that's our lessons about cell to organism. 79 00:13:31,529 --> 00:13:34,269 I hope you enjoy practicing. See you!