Cell Structure
The knowledge and concept about the structure of the cells have changed constantly over the past years. Primarily the scientist defines the cells as a simple membranous sac with fluids and some particles. Researches have now revealed that the cell is the more complex and basic unit of life. There are different types of cells and they also differ in shape and structure. The basic three parts of a cell are cell membrane, cytoplasm, and organelle.
Plant Cell
The smallest functional unit of a living organism is known as the cell. It is composed of cytoplasm enclosed by an outer layer known as the cell membrane. A cell is classified as a prokaryotic cell and a eukaryotic cell. A prokaryotic cell does not contain a nucleus, and the genetic material is freely suspended in the cell cytoplasm; for example, bacteria are composed of a prokaryotic cell. Whereas a eukaryotic cell contains a nucleus and membrane-bound cell organelles with a specific function, plants and animal cells are examples of eukaryotic cells.
Plant Cell Types
Plants are made up of a variety of cell types that include both living and dead cells. These cells provide them mechanical and structural support along with the growth of plants. Plant tissue is a group or collection of cells, which are similar in structure and work together to accomplish a specific function. Plant cells are most similar to animal cells, both being eukaryotic cells.
Draw an animal and plqant cell indicating all the cell organelles.
Introduction
The major difference between the plant cell and animal cell is that the former one contains cell wall while the later one doesn’t have the cell wall. Cell wall is the outer most covering of the cell which is followed by plasma membrane. Cell wall is permeable to almost all the things, it provides mechanical support to the cell. While, plasma membrane is selectively permeable which allows only some selected molecules to pass through.
Cell is filled with a fluid like substance which contains all the cell organelle, called as Cytoplasm. The key component of any cell is its Nucleus which contain the genetic material which controls all the activity of the cell. The main energy source for the cell is mitochondria, which maintains all the energy requirement of the cell.
Other various organelles are Endoplasmic Reticulum (ER), Golgi Bodies, Lysosomes, Ribosomes, Plastids etc.
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