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Unformatted text preview: regulates the movement of substances into and out of the cell. The plasma membrane is also involved in the production and assembly of cellulose for cell walls. 4. The cytoplasm in most living cells is located in the open area of each cell. It is what fills the empty space inside of a cell. 5. Vacuoles in a plant cell are very important. Vacuoles usually make up about 90% of a mature plants cell. They hold a watery fluid called cell sap which helps to maintain pressure within the cell. Vacuoles also aid in the breakdown and digestion of organelles, such as plastids and mitochondria. 6. Chromoplasts are different from chloroplasts because chromoplasts sometimes develop from chloroplasts through internal changes that include the disappearance of chlorophyll. All chloroplasts are chromoplasts but not all chromoplasts are chloroplasts because in order for it to be considered chloroplast, it must have chlorophyll or that green color to them. (Photosynthesis)...
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This note was uploaded on 04/07/2008 for the course BOTANY, SO 104 taught by Professor Schmitz during the Spring '08 term at Community College of Baltimore County.
- Spring '08