Cell Structures

Front 1

Plasm membrane

Back 1

Outer layer of the cell, composed mainly of lipids and proteins

Hint 1

Function: encloses the cell contents; regulates what enters and leaves the cell; participates in many activities, such as growth, reproduction and interactions between cells

Front 2

Microvilli

Back 2

Short extensions of the cell membrane

Hint 2

Function: Absorb material into the cell

Front 3

Nucleus

Back 3

Large membrane-bound, dark-staining organelles near the center of the cell

Hint 3

Function: Contains the chromosomes, the hereditary units that direct all cellular activities

Front 4

Nucleolus

Back 4

Small body in the nucleus

Hint 4

Function: Makes ribosomes

Front 5

Cytoplasm

Back 5

Colloidal suspension that fills the cell from the nuclear membrane to the plasma membrane

Hint 5

Function: Site of many cellular activities; consists of cytosoland organelles

Front 6

Cytosol

Back 6

Fluid portion of the cytoplasm

Hint 6

Function: Surrounds the organelles

Front 7

Endoplasmic reticulum

Back 7

Network of membranes within the cytoplasm; rough ER has ribosomes attached to it; smooth ER does not

Hint 7

Function: Rough ER modifies, folds and sorts proteins; smooth ER participates in liquid synthesis

Front 8

Ribosomes

Back 8

Small bodies free in the cytoplasm or attached to the ER, composed of RNA and protein

Hint 8

Function: Manufacture proteins

Front 9

Golgi apparatus

Back 9

Layers of membrane

Hint 9

Function: Modifies proteins; sorts and prepares proteins for transport to other parts of the cell or out of the cell

Front 10

Mitochondria

Back 10

Large organelles with internal folded membranes

Hint 10

Function: Convert energy from nutrients to ATP

Front 11

Lyosomes

Back 11

Small sac of digested enzymes

Hint 11

Function: Digest substances within the cell

Front 12

Peroxisomes

Back 12

Membrane-enclosed organelles containing enzymes

Hint 12

Function: Break down harmful substances

Front 13

Vesicles

Back 13

Small membrane-bound sacs in the cytoplasm

Hint 13

Function: store materials and move materials into or out of the cell in bulk

Front 14

Centrioles

Back 14

Rod-shaped bodies(usually two) near the nucleus

Hint 14

Function: help separate the chromosomes during cell division

Front 15

Surface projections

Back 15

Structures that extend from the cell

Hint 15

Function: move the cell or the fluids around the cell

Front 16

Cilia

Back 16

Short hair-like projections from the cell

Hint 16

Function: move the fluid around the cell

Front 17

Flagellum

Back 17

Long, whip-like projections from the cell

Hint 17

Function: moves the cell