Cellulose.
i think that would be the cell wall
Plant cells are surrounded by a stiff cell wall made of cellulose, which makes the cells very rigid. It is this strong structure that gives plants their sturdiness.
Well, a cell wall gives the plant cell it's straight structure, which makes the plant stand up and animals can support there own weight and plants need protection that gives the cell wall and animals dont need that protection.
It gives a structure and protects the inner cells from the external environment.
There are two system that do this. Your skeleton (bones) and your skin (integument).
the root take in the nutrients for the plant and it take in the water from the soil. the stem only makes a plant stand and gives it shape and support plants.
Well your skeletal system gives the human body structure. Without your skeleton you wouldn't be able to stand.
One structure that helps a plant stand upright is its stem. The stem provides support for the plant and allows it to grow vertically. In addition, other structures such as roots and specialized tissues also contribute to the plant's stability and ability to remain upright.
In plant cells, rigidity is primarily provided by the cell wall, which is composed mainly of cellulose, hemicellulose, and pectin. Cellulose fibers create a strong structural framework that helps maintain the cell's shape and resist external pressure. This rigidity allows plants to stand upright and supports overall plant structure. Additionally, turgor pressure from the central vacuole also contributes to the firmness of plant cells.
The cellulose molecules
the structure needed by humans to stand and move is the bone and the muscles
Polysaccharide!!