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4.4 Vocabulary

Terms for chapter four section four: Modern Biology

QuestionAnswer
cell wall rigid layer that lays outside the cell's plasma membrane. cell walls contain a carbohydrate called cellulose. pores in the cell wall allow water, ions, and some molecules to enter and exit the cell.
central vacuole large, fluid filled organelle that stores not only water but also enzymes, metabolic wastes, and other materials. it forms as other smaller vacuoles fuse together.
plastids organelles that, like mitochondria, are surrounded by a double membrane and contain their own DNA.
chloroplasts use light energy to make carbohydrates from carbon dioxde and water.
thylakoids flattened, membranous sacs contained in chloroplasts. thylakoids contain the green pigment of chlorophyll.
chlorophyll a green pigment that's the main molecule that absorbs light and captures light energy for the cell.
Created by: DouglasI16
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