In this article, you will find out what protects the plant cell from the outside. We will also consider the general structure of the plant cell, which will further expand your horizons. So what protects the plant cell from the outside? Grade 3 of general education must explain this to children.
This question is very important, elementary school children should already understand that everything in our world consists of various cells. They have different structures and functions. A cell can only be seen with a microscope, it is so small in size. But there are also smaller components called organoids. Let's start our informative story.
Plant cell: structure
So, we have already found out that the cell is part of the constructor of all living things on our planet. We did not just fall from the sky, but evolved from unicellular creatures for a long time. So the cell is the result of the evolution of living matter. The body can contain a different number of them - from 1 to several billion. So it becomes clear that the cell can exist as a separate organism and perform all the necessary functions.
To begin with, it protects the plant cell from the outside. Each cell is covered with a kind of wall called a cell membrane. It is not everywhere the same thickness, in some places there are pores with which it becomes possible to exchange substances between cells. So, what protects the plant cell from the outside, we found out.
Inside are:
The main difference between these substances is that protoplast is a living substance, and its derivatives are not. Protoplast, in turn, is formed from the following components:
To the question of what protects the plant cell from the outside, we have already received the answer, now it remains to consider the structure and functions of the cell wall.
Cell wall
When comparing a plant and an animal cell, pay attention to the fact that the wall bounding the cell can only be found in plants. It has a fairly solid structure, as it performs some very important functions, which we will discuss in the next section. One of the functions we have already mentioned in the table of contents of the article: what protects the plant cell from the outside. It mainly consists of cellulose. There are also cells that do not have this membrane; they are called protoplast.
What else is important to highlight in the structure of the walls? Of course, the presence of pores. Pores are recesses for the interaction and metabolism between neighboring cells.
Functions
The last issue of our work is the allocation of all the functions that the protective wall of plant cells performs. We suggest listing them in the form of a list:
- mechanical strength;
- support;
- resistance to stretching and proliferation;
- growth regulation;
- regulation of form;
- conductor of water and minerals;
- prevention of water loss;
- restriction of cells from the penetration of bad bacteria;
- transportation of substances;
- hemicellulose stock;
- stock of cations.
As you can see, the role of the walls is quite large.