32 terms

Chapter 1 Cells

STUDY
PLAY
Cell
the basic units of structure and function in living things
Microscope
tool used to magnify small objects
Cell Theory
Has 3 Parts: 1- cells are the Basic unit of life 2- all cells come from Other cells 3- all living things are made of One or more cells
Structure
what something is made of and how its parts are put together
Function
job
Cell wall
surrounds plants cells
cell membrane
controls what substances come into and out of a cell; found in all cells
nucleus
the control center of a cell
organelle
tiny cell structures that perform functions for a cell
cytoplasm
fill the inside of the cell
mitochondria
converts FOOD into ENERGY
endoplasmic reticulum
helps ribosomes make proteins
ribosomes
found on the ER; makes proteins
Golgi apparatus
receives, packages and sends out materials
vacuoles
store food, water & wastes
chloroplast
converts SUNLIGHT into FOOD
lysosome
breaks down particles into smaller parts
multicellular
means "made of many cells"; there are advantages of being multicellular such as longer life, larger size and specialization
unicellular
one-celled organism
specialization
cells have specific jobs within an organism
tissue
a group of cells working together to perform a specific function
organ
a group of tissues working together to perform a specific function
organ system
a group of organs working together
organism
a group of organ systems working together
organization in living things
cell -> tissue -> organ -> organ system -> organism
selectively permeable
some substances can cross the membrane while others cannot
passive transport
the movement of materials across a cell membrane without using the cell's energy
active transport
the movement of materials across a cell membrane using the cell's energy
diffusion
a type of passive transport; moving from an area of high concentration to an area of low concentration
osmosis
the diffusion of water
endocytosis
the cell membrane engulfs a large particle
exocytosis
the cell membrane expels a large particle