Monday, October 7, 2013

Cell Organelles of the Plant Cell by Rebecca Dean


The Plant Cell Organelles



The Cell wall protects, structurally supports cells. It is the outside layer of the plant cell.
Providing shape to different cell types to form tissues and organs of a plant. Forming the interface between adjacent cells, plant cell walls often play roles in intercellular communication. 
Chloroplast- specializes in photosynthesis,  pancake looking textures in the plant cell.
Providing shape to the different cell types needed to form the tissues and organs of a plant. Forming the interface between adjacent cells, plant cell walls often play important roles in intercellular communication. 

Central Vacuole- Increases cell surface area, stores metabolic wastes. Looks like a bowl. It stores food, water, and wastes.
Nucleus- keeps DNA and its transcription into RNA away from     potentially damaging  reactions in cytoplasm. To control the many functions of the cell. It does this by communicating with surrounding cytoplasm via numerous nuclear pores. 
Ribosomes- attached to rough ER and free cytoplasm sites of protein synthesis.
Ribosomes are the sites where amino acids are assembled into proteins.




Rough ER- modifies new polypeptide chains; synthesizes lipids, provides surface area for protein synthesis.

Smooth ER diverse roles; makes lipids, degrades fats, inactivates toxins. functions in metabolic processes, including synthesis of lipids, metabolism of carbs and calcium concentration, drug detoxification, and attachment of receptors on cell membrane proteins.

Golgi Apparatus- modifies, sorts & ships proteins &  lipids into cell membranes, it  sorts, and packages proteins. 

Lysosome- Like Vesicle digests, recycles materials.   powerful digestive enzymes that digest excess or worn-out organelles, food particles and bacteria or viruses.

Mitochondrion- energy power house produces ATP. they generate most of the cell's supply of cells energy.
Cytoskeleton- supports, impacts shape and moves cell and components.
Tonoplast- holds vacuole together,semi-permeable phospholipid bilayer membrane encloses large central vacuole and permits entry and exit of material between the cytoplasm and the vacuole.











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