Cell Biology Flashcards

Front 1

Cytoskeleton

Back 1

supports organelles and cell shape and plays a role in cell motion

Front 2

Microtubule

Back 2

tube of protein molecules present in cytoplasm, centrioles, cilia, and flagella

Front 3

intermediate filament

Back 3

intertwined protein fibers that provide support and strength

Front 4

actin filament

Back 4

twisted protein fibers that are responsible for cell movement

Front 5

plasma membrane

Back 5

lipid bilayer in which proteins are embedded

Front 6

Mitochondrion

Back 6

organelle in which energy is extracted from food during oxidative metabolism

Front 7

Secretory vesicle

Back 7

vesicle fusing with the plasma membrane, releasing materials to be secreted from the cell

Front 8

cytoplasm

Back 8

semifluid matrix that contains the nucleus and other organelles

Front 9

nucleus

Back 9

command center of cell

Front 10

nucleolus

Back 10

site where ribosomes are produced

Front 11

nuclear envelope

Back 11

double membrane between the nucleus and the cytoplasm

Front 12

nuclear pore

Back 12

opening embedded with proteins that regulates passage into and out of the nucleus

Front 13

ribosomes

Back 13

small complexes of RNA and protein that are the sites of protein synthesis

Front 14

smooth endoplasmic reticulum

Back 14

system of internal membranes that aids in the manufacture of carbohydrates and lipids

Front 15

rough endoplasmic reticulum

Back 15

internal membranes studded with ribosomes that carry out protein synthesis

Front 16

Golgi complex

Back 16

collects, packages, and distributes molecules manufactured in the cell

Front 17

peroxisome

Back 17

vesicle that contains enzymes that carry out particular reactions, such as detoxifying potentially harmful molecules

Front 18

lysosome

Back 18

vesicle that breaks down macromolecules and digest worn out cell compeonents

Front 19

chloroplast

Back 19

organelle containing thylakoids, the sites of photosynthesis

Front 20

central vacuole

Back 20

in plants, storage compartment for water, sugars, ions and pigments

Front 21

tonoplast

Back 21

membrane surrounding the central vacuole

Front 22

plasmodesmata

Back 22

openings in the cell wall that function in the cell-cell communication

Front 23

adjacent cell wall

Back 23

in plants, adjacent cells are glued together by a sticky substance between their walls

Front 24

cell wall

Back 24

outer layer in some organisms that provides support