Biology

Front 1

cells

Back 1

basic units of life

Front 2

cell membrane

Back 2

thin flexible barrier that surrounds all cells; regulates what enters and leaves the cell

Front 3

nucleus

Back 3

large membrane -enclosed structure that contains genetic material in the form of DNA and controls many of the cell's activities

Front 4

eukaryote

Back 4

organism whose cells contain a nucleus

Front 5

prokaryote

Back 5

unicellular organism that lacks a nucleus

Front 6

cytoplasm

Back 6

the portion of the cell outside of the nucleus

Front 7

organelle

Back 7

specialized structure that performs important cellular functions within a eukaryotic cell

Front 8

vacuole

Back 8

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

Front 9

lysosomes

Back 9

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

Front 10

cytoskeleton

Back 10

supports and gives shape to the cell, and is involved in many forms of cell movement.

Front 11

centriole

Back 11

located near the nucleus and help organize cell division

Front 12

Ribosomes

Back 12

small particles of RNA and protein found throughout the cytoplasm in all cells.

Front 13

endoplasmic reticulum (ER)

Back 13

an internal membrane of the cell where
lipid components of the cell membrane are assembled along with proteins and other materials that are exported from the cell

Front 14

Golgi apparatus

Back 14

organelle in cells that modifies, sorts, and packages proteins and other materials from the endoplasmic reticulum for storage in the cell or release outside the cell.

Front 15

chloroplasts

Back 15

captures the energy from the sunlight and converts it into food that contains chemical energy

Front 16

mitochondria

Back 16

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

Front 17

cell wall

Back 17

strong supporting layer around the cell membrane

Front 18

lipid bilayer

Back 18

gives the cell membrane a flexible structure that forms a strong barrier between the cell and its surroundings

Front 19

selectively permeable

Back 19

property of biological membranes that allows some substances to pass across it while others can not.

Front 20

I love biology

Back 20

I love biology

Front 21

prokaryotic cell

Back 21

cells that do not separate their genetic material within a nucleus

Front 22

eukaryotic cell

Back 22

cells in which the nucleus seperates the genetic material from the rest of the cell