Chapter 8 Biology test

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36 Terms

1

eurkaryotes

plants,animals,fungus

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2

prokaryotes

non living single-celled organisms without a nucleus

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3

similarities in prokaryotes and Eukaryotes

Have both DNA and ribosomes, reproduce and carry out metabolic processes.

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4

Nuclolsis

(found within the nucleus) put all the genes in one place to make ribosomes

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5

Nucleous

genetic material in the cell is in little pores on the outside is how material moves in and out of the nucleus through the nuclear envelope.

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6

Rough ER

a member (the factor in the cells) with ribosomes on top to make materials like membranes and proteins.

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7

Golgi body

snakes up proteins (shipping out)

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8

Smooth ER

Produces lipids (Cholesterol)

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9

Mitochondria

Generating ATP(The source of energy and storage at a cellular level

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10

vacuole

Where water is stored (animal cells donā€™t have one and immature plant cells donā€™t have on either)

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11

Cystoplasm

The fluid and have salutes inside

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12

Lystosomes

has digestive insides inside it and break down cells

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13

Centriole

Sets up where parts of the cell are

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14

Ribosomes

Cell organelle consisting of RNA and protein found throughout the cytoplasm and in a cell; The site of protein synthesis

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15

Protein synthesis

the biological process by which cells create proteins

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16

endoplasmic reticulum

Internal membrane system found in Eurkaryotes cells; place where lipid components of the cell membrane are assembled

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17

Lysosomes

Cell organelle that breaks down lipids, carbohydrates and proteins into small molecules that can be used by the rest of the cell

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18

cell wall

Strong supporting layer around the cell membrane in some cells

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19

lipid bilayer

flexible double layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings

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20

Selectively permeable

decide if something can go into or exit the cell

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21

micro filaments

threadlike structures made up of a protein called actin

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22

microtubules

hollow structures made up of proteins known as tublin

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23

homeostasis

relatively constant internal physical chemical conditions that organisms maintain

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24

diffusions

process by which particles tend to move from area where they are more concentrated to an area where they are less concentrated

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25

facilitated diffusion

process of diffusion in which molecules pass across the membrane through cell membrane channels

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26

osmosis

diffusion of water through a selectively permeable membrane

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27

isotonic

when the concentration two solution is the same

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28

hypertonic

when comparing two solutions, the solutions with the greater concentration of solutes

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29

osmotic pressure

pressure that must be applied to prevent osmotic movement across a selectively permeable membrane

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30

cell

basic unit of all forms of life

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31

cell theory

fundamental concept of biology that slates that all living things are composed of cells; that cells are basic units of structure and function in living things; and that new cells are produced by old cells

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32

cell membrane

breaks up the interior cell from the outside environment

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33

tissue

group of similar cells that perform a particular function

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34

organ

group of tissues that work together to perform closely related functions

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35

organ system

group of organs that work together to perform a specific function

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36

receptor

on or in a cell, a specific protein to whose shape fits that of a specific molecular messenger such as a hormone

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