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NS 3º U1 L2 From Cells to Organisms - Contenido educativo

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Subido el 1 de octubre de 2023 por Fernando G.

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let's now move on to lesson number two from a cell to an organism 00:00:00
in this picture we are representing millions of cells first of all what is a cell 00:00:08
Mirror world. A cell is the smallest living unit. Remember, we need a microscope to see 00:00:17
individual cells. These are alga cells under a microscope. In this case, we can see a population 00:00:34
bacteria on a battery dish. One cell, many cells. Remember that we can classify organisms into 00:00:47
unicellular organisms and multicellular organisms. Let's talk about the number. 00:01:00
In the world, unicellular organisms only have one cell. On the other hand, multicellular organisms have many cells. Good job. 00:01:07
In your world, in unicellular organisms, the single cell carries out the three vital functions. 00:01:25
On the other hand, in multicellular organisms, different cells have a different function. 00:01:45
This means that in unicellular organisms, the cell has to do the nutrition, interaction and reproduction. 00:01:52
In multicellular organisms, there are cells just for nutrition, other cells for interaction and other cells for reproduction. 00:02:06
Some examples of unicellular organisms are alga and bacteria. 00:02:20
Some examples of multicellular organisms are plants and animals. 00:02:29
Let's move on to the following slide. 00:02:38
This is the pyramid with the levels of organization of multicellular organisms. 00:02:42
Level number one is the cell. Your world. Cells are the smallest living unit. Level number two. Your world. Cells group together and form tissues. Good job. 00:02:51
Level number 3. In your world, tissues group together and form an organ. Some examples of organs are the lungs to breathe, the heart in the circulatory system, among others. 00:03:21
Level 4. Mirror world. Organs work together and form systems. 00:03:45
Some examples of systems are the circulatory system, the digestive system, the respiratory system. 00:03:56
level number five, mirror world, systems form a living organism. For example, all the human systems 00:04:08
form a complete human being. Finally, in this lesson, we are going to learn some parts of animal 00:04:26
and plant cells. Remember that some cells are included in both animal and plant cells, 00:04:37
but other parts are only for plant cells. Part number one is the cell wall. The cell 00:04:46
wall makes the plant rigid, supports the plant. It's all included in plant cells. 00:04:59
Part number two is the cell membrane. The cell membrane controls the substances 00:05:10
entering and leaving the cell. It is included in both animal and plant cells. 00:05:20
Part number three are the vacuoles. Vacuoles contain water. Vacuoles are 00:05:30
included in both animal and plant cells. Part number four is the nucleus. The 00:05:44
nucleus controls the cell functions. The nucleus is included in both animal and cell plants. 00:05:54
Finally, the chloroplasts. The chloroplasts contain chlorophyll and they are included 00:06:06
only implant cells parts of a cell cell wall cell membrane black walls nucleus and chloroplast 00:06:14
on the one hand we have the parts of the cell and on the other hand we have some metaphors 00:06:36
Can you guess which of the cell parts correspond to the different metaphors? 00:06:43
Let's see. First of all, let's start with the cell membrane. Do you remember 00:06:49
which metaphor corresponds to the cell membrane? Think about it. Great, the door. Why? 00:06:57
because the cell membrane is in charge of controlling the substances that enter and leave 00:07:08
the cell. Great. The second one is the back wall. Do you remember which metaphor corresponds to the 00:07:16
back wall? Great, the water well. Part number three is the cell wall only included in plant cells. 00:07:25
Do you remember the metaphor? 00:07:38
Think about it. 00:07:42
Great, it's the armor. 00:07:44
What about the nucleus? 00:07:48
Do you remember which metaphor corresponds to the nucleus? 00:07:51
Great, the nucleus is the brain that controls all the functions, 00:07:56
nutrition, production, interaction. 00:08:03
And finally, the chloroplast is the part of the plant cell that could be represented by 00:08:06
a solar panel as it is included or involved in the photosynthesis. 00:08:14
Idioma/s:
en
Autor/es:
Fernando García
Subido por:
Fernando G.
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
105
Fecha:
1 de octubre de 2023 - 18:44
Visibilidad:
Clave
Centro:
CP INF-PRI IPLACEA
Duración:
08′ 20″
Relación de aspecto:
1.78:1
Resolución:
1366x768 píxeles
Tamaño:
27.81 MBytes

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