Plant Anotology
Internal Structure Of A Plant
PLANT CELL STRUCTURE
Plant cells are classed as eukaryotes organisms, because they have a membrane enclosed nuclei and organelles. Here is a diagram of a plant cell;

Cytoplasm
Most chemical reactions take place here. It helps the cell maintain it’s shape.
Nucleus
The nucleus has two main roles. Firstly it contains all the cells genetic information. Secondly it coordinates the cell's activities, which include growth, intermediary metabolism, protein synthesis, and reproduction (cell division).
Chloroplasts
Contain a green pigment known as chlorophyll which absorbs light energy (needed in the plants food making process of photosynthesis.) It does this by converting the water and carbon dioxide, found in the cell, into sugars and carbohydrates. Therefore the chloroplasts covert light energy into chemical energy.
Permanent vacuole
Large liquid filled (cell sap) storage containers help to support the cell. The vacuole can store anything from waste, to nutrients, even water. These can be quite big, allowing a cell to grow without having to produce new cytoplasm.
Cell wall
Made from a compound of cellulose, the cell wall protects the cell and strengthens the cell.
Cell membrane
Controls the chemical movement in and out of the cell. It is crucial to the cells survival as an internal balance of chemicals needs to be maintained. As the membrane is semi-permeable this allows some substances to pass through freely, but others cannot. Here the process of diffusion takes place.
Diffusion
Substances dissolved in water move naturally from areas where there are large amounts to scarce areas. An example could be that of carbon dioxide (co2.) Carbon dioxide will distribute itself from inside the cell through the membrane to water outside the cell until a balanced level is reached.
PLANT TISSUES

(Britannia,2008)
Parenchyma cells
Parenchyma tissue is composed of cells (parenchyma cells) that are
PLANT CELL STRUCTURE
Plant cells are classed as eukaryotes organisms, because they have a membrane enclosed nuclei and organelles. Here is a diagram of a plant cell;

Cytoplasm
Most chemical reactions take place here. It helps the cell maintain it’s shape.
Nucleus
The nucleus has two main roles. Firstly it contains all the cells genetic information. Secondly it coordinates the cell's activities, which include growth, intermediary metabolism, protein synthesis, and reproduction (cell division).
Chloroplasts
Contain a green pigment known as chlorophyll which absorbs light energy (needed in the plants food making process of photosynthesis.) It does this by converting the water and carbon dioxide, found in the cell, into sugars and carbohydrates. Therefore the chloroplasts covert light energy into chemical energy.
Permanent vacuole
Large liquid filled (cell sap) storage containers help to support the cell. The vacuole can store anything from waste, to nutrients, even water. These can be quite big, allowing a cell to grow without having to produce new cytoplasm.
Cell wall
Made from a compound of cellulose, the cell wall protects the cell and strengthens the cell.
Cell membrane
Controls the chemical movement in and out of the cell. It is crucial to the cells survival as an internal balance of chemicals needs to be maintained. As the membrane is semi-permeable this allows some substances to pass through freely, but others cannot. Here the process of diffusion takes place.
Diffusion
Substances dissolved in water move naturally from areas where there are large amounts to scarce areas. An example could be that of carbon dioxide (co2.) Carbon dioxide will distribute itself from inside the cell through the membrane to water outside the cell until a balanced level is reached.
PLANT TISSUES

(Britannia,2008)
Parenchyma cells
Parenchyma tissue is composed of cells (parenchyma cells) that are