Cell Unit - Honors Bio

Front 1

cell

Back 1

basic unit of structure and organization of all living organisms

Front 2

cell theory

Back 2

states that: 1- organisms are made of one or more cells. 2- cells are the basic unit of life

3- all cells come only from other cells

Front 3

cell wall

Back 3

in plants the rigid barrier that surrounds the plasma membrane. Made of cellulose, provides support/protection for the cell

Front 4

centriole

Back 4

organelle that plays a role in cell division and is made of microtubes

Front 5

chloroplast

Back 5

double membrane organelle that captures light energy and converts into chemical energy through photosynthesis`

Front 6

cytoplasm

Back 6

semi fluid material inside the cells plasma membrane

Front 7

cytoskeleton

Back 7

supporting network of protein fibers that provide a framework for the cell within the cytoplasm

Front 8

plasma membrane

Back 8

flexible, selectively preamble boundary that helps control what leaves and enters the cell

Front 9

organelle

Back 9

specialized internal cell structure that carries out specific functions such as protein synthesis and energy transformation

Front 10

eukaryotic cell

Back 10

unicellular organism with membrane bound nucleus and organelles

Front 11

prokaryotic cell

Back 11

microscopic unicellular organism without a nucleus or other membrane bound organelles

Front 12

nucleus

Back 12

center of an atom, contains neutrons and protons. In eukaryotic cells the central membrane bound organelle that manages cellular functions and contains dna

Front 13

selective permeability

Back 13

property of the plasma membrane that allows it to control the movement of substances into or out of the cell

Front 14

phospholipid bi-layer

Back 14

plasma membrane layers composed of phospholipid molecules arranged with polar heads facing the outside and nonpolar tails facing the inside

Front 15

transport protein

Back 15

protein that moves substances or wastes through the plasma membrane

Front 16

fluid mosaic model

Back 16

a plasma membrane with components constantly in motion, sliding past another with the lipid layer.

Front 17

ribosome

Back 17

simple cell organelle that helps manufacture proteins

Front 18

nucleolus

Back 18

the site of ribosome production within the nucleus of eukaryotic cells

Front 19

endoplasmic reticulum

Back 19

highly folded membrane system in eukaryotic cells that is the site for protein and lipid synthesis

Front 20

Golgi apparatus

Back 20

flattened stack of tubular membranes that modifies, sorts, and packages proteins into vesicles and transports them to other organelles or out of the cell

Front 21

vacuole

Back 21

membrane bound vesicle for temporary storage of materials such as food, enzymes, and waste

Front 22

lysosomes

Back 22

vesicle that uses enzymes to digest excess, or worn out cellular substances

Front 23

mitochondria

Back 23

membrane bound organelle that converts fuel into energy that is available to the rest of the cell

Front 24

flagella

Back 24

long tail like projection with a whip like motion that helps a cell to move through a variety of watery environment

Front 25

mcirovilli

Back 25

Any of the minute hairlike structures projecting from the exposed surface of the cell in order to increase the surface area for absorption, secretion, cellular adhesion, or mechanotransduction