Cells 22-23

cell membrane

thin ouside lining of the cell, controls what goes in and out

nucleus

the brain of the cell, controls all functions and has the DNA

golgi apparatus

packages and ships things in and out of cell, the UPS

mitochondria

releases energy, the powerhouse

Robert Hooke

first to observe and name the cell (1665)

vacuole

stores food and waste

cell, tissue, organ, organ system, organism

the way cells are organized, smallest to largest

cytoplasm

thick jellylike substance that holds organelles in place inside of the cell

ribosome

makes proteins

eukaryote

a cell or organism that has a nucleus and many organelles

prokaryote

a single celled organism, with no nucleus or organelles, reproduce faster

organelle

a specialized part of a cell

mitosis

the process of cell reproduction, cell division

cell theory

1. all living things are made of cells, 2. cells are the basic units of function and struction, 3. cells come from only other living cells

unicellular organism

an independent organism of one cell that can live on its own

multicellular organism

an organism made up of more than one cell

cell wall

the thick outer layer, only in plant cells

cell

the basic, smallest unit of life

chloroplast

where photosynthesis happens, only in plant cells

flagella

long tail that helps a unicellular organism move

cilia

many tiny hairs that cover a unicellular organism that help it move

5 functions of life

using energy, growing and developing, getting rid of waste, responding to environment, reproducing

virus

not alive, but can reproduce

microscope

they magnify tiny objects, and were important in discovering cells and organelles