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mr. charles16

cellular structure and function

QuestionAnswer
Nucleus holds DNA & controls activities of the cell.
Cell Membrane seperates cell from surroundings; regulates what leaves and enters; supports and protects cell. also called cell envelope, plasma membrane, lipid bilayer.
Nuclear Membrane(nuclear envelope) protects the nucleus. Double layer membrane surrounding the nucleus. Porous to allow communication to the rest of cell.
Nucleolus makes ribosomes. Found in the nucleus. Made up of RNA and proteins.
Cytoplasm Area between the cell membrane and the nucleus. Contains important organelles.
Mitochondria Powerhouse of the cell. Site where respiration(breaking down of food to produce energy)takes place.
Chloroplast traps energy from the sunlight.Site for photosynthesis. Found only in plants cells.
Ribosome make proteins. Composed of RNA and proteins.
Lysosome membrane bound structure containing enzymes to digest certain materials in the cell
Rough Endolasmic Reticulum transports materials through the inside of the cell; proteins are synthesized (made) here.
Smooth Endoplasmic Reticulum transports materials through the inside of the cell.Has no ribosomes.
Golgi Body/ Apparatus flattened sac of membranes, modifies proteins by adding carbohydrates and lipids to them. Also stores protein.
Vacuole stores materials like water, salt, proteins,& carbs
Cell Theory 1.all living things are composed of cells 2. cells are the basic units of the structure of l iving things. 3. All cells come from pre-exi sting cells.
prokaryote Cell that lacks internal structures surrounded by membranes. Example: bacteria(no nucleus or other membrane bound organelles).
eukaryotic cell Contains a nucleus and other organelles. ex. plant cells, animal cells, protists, fungi.
Created by: eccharles77
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