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Plant cells are composed of:
The nucleus, which contains the DNA. It includes the nuclear envelope (outer layer), the nucleolus, which makes ribosomes, and the chromatin, which is the genetic material (DNA).
The smooth and rough endoplasmic reticuli. The rough ER contains ribosomes, which process DNA transcripts into protein chains. The smooth ER detoxifies the cell.
The central vacuole, which functions mainly for storage, especially of waste products and continues to expand throughout the cell's lifetime. It contributes to overall plant growth.
The tonoplast, the membrane enclosing the central vacuole.
The microfilaments, intermediate filaments, and microtubules, which form the cytoskeleton, which supports the cell and provides avenues of transport for vacuoles and other parts of the cell.
Chloroplasts, which perform photosynthesis to create energy for the cell.
The centrosome, which is the area where microtubules are initiated. (In plants, it lacks centrioles.)
Golgi bodies, which assemble proteins and transport substances between parts of the cell.
Mitochondria, which also function to provide energy for the cell.
Peroxisomes, which break down fatty acids and detoxify toxic substances.
The plasma membrane, which runs along the inside of the cell wall.
The cell wall, which protects the cell and provides structure to the plant, similar to a skeleton.
The plasmodesmata, channels between cells which allow material to pass between them.
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Where is the cell membrane located in a plant cell?
The cell wall is the outer-most layer, found outside the cell membrane. Animal cells only have a cell membrane, not a cell wall. Plant, bacteria, fungi and algal cells usually have a cell wall, as well as some archaea.
What maintains shape of plant cells?
The cell wall in a plant cell maintains the shape of the plant cell. It also supports and protects the cell. Animal cells do not consist of cell walls they only have a cell membranes. Hope that helped :)
What happens when plant is put into water?
If a plant cell is placed in fresh water, there will be a net movement of water into the cell - because the solute concentration inside the cell is greater than outside. This occurs because the system is attempting to reach equilibrium (where the concentrations inside and outside are equal). Unlike an animal cell, a plant cell will not burst when excess water enters the cell. This is because the cell wall helps the plant cell maintain its structure.
What are the main differences between plant cells and animal cells?
the plant cell is round and the animal cell is squered
In addition to a cell membrane what other cell boundary might a cell have?
Cell wall if it's a plant cell.
