Cells and Parts

Cell

a membrane bound structure that is the basic unit of life

Cell Membrane

the outer boundary of the cell: determines what enters and leaves the cell

Cell Theory

all living things are made of cells, that cells are the basic unit of structure and function and that cells only come from other cells.

Cell wall

a rigid structure that surrounds the cells of plants and most bacteria

Chloroplast

a plastid containing chlorophyll, the site of photosynthesis

Cytoplasm

region of the cell between the cell membrane and the nucleus ; material inside the cell that holds the organelles in place

Eukaryote

a cell that contains a membrane bound nucleus and membrane bound organelles

Golgi apparatus

a system of membranes that modifies and packages proteins for export by the cell

Lysosomes

an organelle containing digestive enzymes

Mitochondria

powerhouse of the cell, organelle that is the site of energy production

Nuclear envelope

a double membrane that surrounds the nucleus in the cell

Nucleolus

the organelle where ribosomes are made, synthesized and partially assembled, located in the nucleus

Nucleus

the organelle that contains the DNA and controls the processes of the cell

Organelle

one of several bodies with a specialized function that is suspended in the cytosol of the cell

Ribosome

an organelle that functions in the synthesis of proteins

Vacuole

a fluid filled organelle that stores enzymes or water

Prokaryote

a unicellular organism that lacks (does not have) a membrane bound nucleus and membrane bound organelles

Tissue

a group of similar cells that carry out a similar function

Vesicle

a membrane bound sac that contains materials involved in transport of the cell.

Schleiden

Botanist who concluded all plants are made of cells

Robert Hooke

credited with discovering cells

Anton Van Leeuwenhoek

first to see living cells

Virchow

observed that cells come from preexisting cell

Cell ________ organ organ system organism

tissue

The shape of a cell tells you something about its ________

job

All cells have _______________ in common

carrying out life processes.

The shape, or structure, of an animal cell is determined by its _____

function (job)

An organelle in a plant cell changes light energy into chemical energy in the form of sugar is ______.

chloroplasts

multicellular

composed of many cells

unicellular

composed of only one cell

Schwann

Zoologist who concluded all animals are made of cells