As plants cannot move they need protection against variations in temperature, high wind speed, atmospheric moisture, etc. These variations damage the plant cell to an extent of killing them. The cell membrane is a flexible and semi-permeable membrane and cannot fight the adverse climatic changes in its own. Therefore, a stiffer outer covering is present which protects and gives shape to the plant cell. This layer is called the cell wall.
Question
Why do plant cells have an additional layer surrounding the cell membrane? What is this layer known as?
- Cell structure and functions CBSE Class 8
WhatsApp
Didn't liked the above answer ?
×
![Crop Image]()
💡 Some Related Questions
Classify the following terms into cells, tissues and organs and write in the tabular column given below. RBC, WBC, nerve cell, blood vessels, brain, heart, hand, blood, muscle, nerve.
| Cell | Tissue | Organ |
| ——– | ——– | ——– |
| ——– | ——– | ——– |
| ——– | ——– | ——– |
(i) Does it represent a plant cell or an animal cell? (ii) Does it represent a prokaryotic cell or a eukaryotic cell?