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chapter7 (1)

cell structure and function

QuestionAnswer
Cell the basic unit of life
Cell theory a fundamental concept of biology that states all living things are composed of cells, cells are the basic units of structure and function in living things, New cells are produced from existing cells
Nucleus a large membrane- enclosed structure that contains the cells genetic material in the form of DNA
eukaryote Cells that contain a nuclei
prokaryote Cells that do not contain nuclei
Organelles "little organs"
Cytoplasm the portion outside the necleus
Nuclear envelope two membranes that surround the nucleus
Chromatin the granular material you can see in the nucleus
Chromosomes when a cell divides the chromatin condenses and makes chromosomes
Nucleolus a small dense region in the nuclei that assembles ribosomes
Ribosomes small particles of RNA and proteins found in the cytoplasm
Endoplasmic Reticulum it in eukaryotic cells; its the place where lipid components of the cell membrane are assembled, along with proteins and other material
Golgi Apparatus A organelle that modifies sorts and packages proteins
Lysosomes Small organelles filled with enzymes; the clean up crew
Vacuoles saclike structures that store materials like water salts proteins and carbs
Mitochondria organelles that convert the chemical energy stored in food into compounds that are more convenient for the cells to use
Chloroplasts Organelles that capture the energy from sunlight and convert it into chemical energy by photosysthesis
Cytoskeleton the supporting structure that give eukaryotic cells their shape and internal organization
Centrioles locates near the nucleus and help organize cell division
Created by: aguida
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