4. Human cells have a nucleus, a cell membrane, and...

Name: 4. Human cells have a nucleus, a cell membrane, and cytoplasm. However, not all cells are the same. The different functions of a cell, and thus of an organ and organ system, will require a difference in quantity and type of organelles within those cells.
Uploaded: 2021-09-21T18:52:57-08:00
Duration: 8 min 29 s
Channel: Bryan Valdivia
Description: 4. Human cells have a nucleus, a cell membrane, and cytoplasm. However, not all cells are the same. The different functions of a cell, and thus of an organ and organ system, will require a difference in quantity and type of organelles within those cells.

4. Human cells have a nucleus, a cell membrane, and cytoplasm. However, not all cells are the same. The different functions of a cell, and thus of an organ and organ system, will require a difference in quantity and type of organelles within those cells.

Transcript

00:01 Okay, you're going to answer this question.

00:01 Let's talk about some organelles that are presenting different types of cells, okay? and that quality is going to help those types of cells to accomplish specific functions.

00:16 For example, one example is going to be a macrophage.

00:21 This is a macrophage.

00:22 Imagine this is a macrophage.

00:24 So you know that cells have an organelle that is called lysosome.

00:30 And lysoform is related with.

00:32 With cell digestion, okay, because it is going to, for example, by you have a lysosome.

00:40 This lysosome is going to be surrounded by a membrane, and it is going to contain a very low ph, and also many enzymes that are going to break down molecules that are, for example, wasted from the cell, or, i don't know, for example, carbohydrates in the cell in order to break them down back to monomers, okay? to, like, it means to monosacrides.

01:02 So that's a function of lysosomes.

01:05 And in case of macrophage, you're going to have a very high level of lysosomes.

01:11 Why? well, because the function of macrophages is to engulf pathogens.

01:19 And while you engulf pathogen, you're going to produce a vesicle with a pathogen.

01:23 And this bicycle is going to fuse with a lysosome.

01:26 And this lysosome, and this vesicle are going to fuse, so the content of the lysosome is going to get into a this compartment containing the pathogen, and it is going to lead to the digestion of this pathogen there.

01:40 Okay, so because lysosomes are required for pathogens, in digestion, particularly, macrophages, and some other immune cells are going to have high levels of lysosome.

01:51 So the question says, for each of the descriptions below identify how these characteristics help this type of cell accomplish its function.

02:00 The first one said, each sperm has a flagellum and very little, cytoplasm.

02:06 So the general structure of the sperm is like this.

02:10 It has a head, okay, the acrosome, and you're going to have like the tail here.

02:20 This tail is a flagellus.

02:24 Okay, this very long tail is a flagellum and it has a very little cytoplasm here.

02:32 Okay.

02:35 Also it is going to have a meat piece here.

02:38 A meat piece is going to be a meat piece.

02:42 The meat piece.

02:44 Okay, and this midpiece is going to contain high levels of mitochondria.

02:51 So they are not asking us about the meat piece, but just for you to know, this midpiece is going to have all the mitochondria, okay, in order, because practically this sperm needs to, needs high levels of atp in order to move, because it has to move, okay? so it is going to have high levels of mitochondria.

03:11 Then also it is going to have a small cytoplasm, okay, a very large.

03:17 Little cytoplasm because it is going to, well, it needs to be a little in order to move.

03:24 Okay, in order to move faster and to move more like freely.

03:29 And the phagealog is going to allow a movement of this sperm...

Question

4. Human cells have a nucleus, a cell membrane, and cytoplasm. However, not all cells are the same. The different functions of a cell, and thus of an organ and organ system, will require a difference in quantity and type of organelles within those cells.

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