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Cell Structure

QuestionAnswer
what are cells? The basic units of life
what is the cell theory? A fundamental concept of biology
What is the nucleus? a large membrane enclosed structure that contains the cell's genetic material in the form of DNA
what are eukaryotes? cells that contain nuclei
what are prokaryotes? cells that do not contain nuclei
What are organelles? specialized structure that performs improtant cellular functions with a eukaryote cell
what is the cytoplasm? The portion of the cell outside the nucleus
What is a nuclear envelope? Layer of two membranes that surround the nucleus of a cell
What is a chromatin? Granular material that consists of DNA bound to protein
What are chromosomes? Threadlike structures that conatain the genetic info that is passed from one generation of cells to the next
Whatis a nucleolus? small dense region of most nuclei
What are ribosomes? Small particles of RNA and protein found throughout the cytoplasm
What is the endoplasmic reticulum? The internal membrane system of eukaryotic cells
What is the golgi apparatus? A stack of closely apposed membranes
What are lysosomes? Small organelles filled with enzymes
What are vacuoles? Saclike structures that store materials such as water, salts, and proteins, and carbohydrates.
What is the mitochondria? Organelles that convert the chemical energy stored in food into compounds that are more convenient for the cell to use
What are chloroplasts? Organelles that capture the energy from the sunlight AND CONVERT IT INTO chemical energy in a process called photosynthesis
What is the cytoskeleton? A network of protein filaments that helps the cell to maintain its shape.
What are centrioles? L:ocated near the nucleus and help to organize cell division
Created by: BBarbato
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