1 00:00:11,310 --> 00:00:18,010 Hello everyone, we continue with the cell, remember that the day we did the levels of organization 2 00:00:18,010 --> 00:00:23,850 now we are going to focus on one of these levels, the cell, cell level 3 00:00:23,850 --> 00:00:27,170 ok, so what do we have to do? 4 00:00:27,489 --> 00:00:31,370 first of all, we have another point, so we write the heading 5 00:00:31,370 --> 00:00:37,270 number 2, the cell, so that's the unit of life 6 00:00:41,310 --> 00:00:49,030 Why do we say that is the unit of life? Think a little bit. Yes, because it's the first level 7 00:00:49,030 --> 00:00:55,310 in which we can consider that it has life on its own. We cannot say that an organelle, for example, 8 00:00:55,310 --> 00:01:03,729 has life. No, because it cannot survive without the whole cell. Okay, so what we need to do is, 9 00:01:03,950 --> 00:01:09,670 I don't know if you can see it well. Okay, we're gonna prepare a cell like the one I have drawn 10 00:01:09,670 --> 00:01:17,790 here on the board you look for a picture on internet copy it yeah you can trace it if you 11 00:01:17,790 --> 00:01:24,090 want put the paper on the screen of your computer okay and we're going to make it in a small piece 12 00:01:24,090 --> 00:01:33,870 of paper a paper that we can lift up and down so here we have to be all the different organelles 13 00:01:33,870 --> 00:01:39,609 okay and underneath we're going to write the definition of cell and remember here we need 14 00:01:39,609 --> 00:01:45,290 to write cell like the one i have here now i'm going to tell you the definition of cell 15 00:01:45,290 --> 00:01:55,969 get ready to copy the cell is the most basic part of a living organism that is capable 16 00:01:55,969 --> 00:02:05,870 of performing the three vital functions to that nutrition, coma, interaction and reproduction. 17 00:02:06,530 --> 00:02:12,530 When we're finished with drawing ourselves and writing the definition, we're going to 18 00:02:12,530 --> 00:02:13,909 make a couple of exercises. 19 00:02:14,370 --> 00:02:18,810 Remember that these exercises must be on the other part of our notebook. 20 00:02:18,990 --> 00:02:22,289 It cannot be on the same part where we have the theory. 21 00:02:22,689 --> 00:02:25,250 So get ready to copy the exercises. 22 00:02:36,370 --> 00:02:46,370 Continuing with our notebook, on the same point of the cell, we're going to write characteristics of human cells. 23 00:02:46,590 --> 00:02:48,349 Let's see what characteristics do we have. 24 00:02:48,430 --> 00:02:53,750 First of all, human cells are heterotrophic, and second, they are eukaryotic. 25 00:02:54,189 --> 00:03:01,210 To write the definition of heterotrophic and eukaryotic, we're going to cut two triangles, okay? 26 00:03:01,210 --> 00:03:06,750 And we're going to make a flap because we need to write the definition underneath. 27 00:03:07,469 --> 00:03:07,969 Okay, you see? 28 00:03:08,710 --> 00:03:10,210 Okay, and mark the triangle. 29 00:03:10,569 --> 00:03:11,210 So, let's see. 30 00:03:11,289 --> 00:03:12,689 Let's start with aterotrophic. 31 00:03:13,110 --> 00:03:17,349 Aterotrophic is a cell that obtains nutrients from other organisms. 32 00:03:19,289 --> 00:03:27,289 And eukaryotic is a cell with nucleus and organelles surrounded by membranes. 33 00:03:27,289 --> 00:03:54,000 and so prepare these two flaps now now you're gonna watch a video and keep an 34 00:03:54,000 --> 00:03:59,860 eye on it and we're gonna talk about the different parts of the cell 35 00:04:03,219 --> 00:04:11,159 now you're gonna watch a video and keep an eye on it and we're gonna talk about 36 00:04:11,159 --> 00:04:31,980 the different parts of the cell let's see the basic parts of ourselves so first of all we have 37 00:04:32,779 --> 00:04:40,300 something that surrounds the cell that is the wall that doesn't allow all the substances to 38 00:04:40,300 --> 00:04:48,699 get inside the cell do you remember the name of it it was membrane yes it was the membrane 39 00:04:52,569 --> 00:04:57,769 As I said, it's the point where the substances would be allowed to get inside the cell 40 00:04:57,769 --> 00:05:00,269 or won't be allowed to get inside the cell. 41 00:05:00,769 --> 00:05:06,970 Then, when you get in, there was a liquid substance that was called in the red, 42 00:05:06,970 --> 00:05:10,990 that it was called cytoplasm. 43 00:05:16,600 --> 00:05:23,500 Inside this liquid, we have different things floating on top. 44 00:05:24,019 --> 00:05:25,360 What were the name of them? 45 00:05:25,360 --> 00:05:27,899 They were the organelles 46 00:05:27,899 --> 00:05:35,180 Also inside the cytoplasm 47 00:05:35,180 --> 00:05:38,079 There is the central part of the cell 48 00:05:38,079 --> 00:05:39,759 That organises the rest 49 00:05:39,759 --> 00:05:41,480 What was the name of it? 50 00:05:42,360 --> 00:05:43,199 The nucleus 51 00:05:43,199 --> 00:05:50,410 So we have four parts 52 00:05:50,410 --> 00:05:55,410 We have membrane, cytoplasm, organelles and nucleus 53 00:06:04,509 --> 00:06:08,009 Hey! Hey! Hey!