cell organelles

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created 6 years ago by queene222
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updated 6 years ago by queene222
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1

cell

basic unit of all forms of life

2

cell theory

the idea that all living things are composed of cells

3

cell membrane

thin, flexible barrier that surrounds the cell and regulates what goes in and out

4

cell wall

strong supporting outer layer of plant, algae, and some fungus cells

5

nucleus

structure that contains a cells genetic material and controls the cell

6

cytoplasm

material inside the cell membrane- not including the nucleus

7

prokaryote

unicellular organism with no nucleus

8

eukaryote

organism whose cells contain nuclei

9

organelle

specialized structure that performs important cellular functions within a eukaryotic

10

chromatin

granular material visible within the nucleus that consists of DNA tightly coiled around proteins

11

chromosome

threadlike structure in the nucleus containing genetic information

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nucleolus

small, dense region of the nucleus where the assembly of proteins begin

13

nuclear envelope

layer of two membranes that surround the nucleus

14

cytoskeleton

network of proteins that help some cells maintain shape and/or move

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microtubule

components of the cytoskeleton, found in the cytoplasm

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microfilament

thinnest filament of the cytoplasm

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ribosome

small particle in which the proteins are assembled. made of RNA and protein

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endoplasmic reticulum

internal membrane system in cells in which lipid components of the cell membrane are assembled and some proteins are modified

19

Golgi apparatus

stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum

20

lysosome

cell organelle filled with enzymes needed to break down certain materials in the cell

21

vacuole

cell organelle that stores materials such as water, salts, proteins, and carbohydrates

22

chloroplast

organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy

23

mitochondria

cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use

24

cell specialization

the process in which cells develop in different ways to perform different tasks

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tissue

group of similar cells that perform a particular function

26

organ

group of tissues that work together to perform closely related functions

27

organ system

group of organs that work together to perform a specific function