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Cells

Science

Cells Chapter Video

Cells Chapter Video

carbohydrate

an energy-rich organic molecule of carbon, hydrogen, and oxygen, like sugar or starches
carbohydrate Simple Definition

cell

the basic unit of life
cell Simple Definition

cell membrane

the cell boundary that controls what enters and leaves the cell
cell membrane Simple Definition

cell theory

cells make up all organisms, are the basic units of life, and come from other cells
cell theory Simple Definition

cell wall

the rigid structure around a plant cell that supports and protects it
cell wall Simple Definition

chloroplast

the plant organelle that uses light energy to make food
chloroplast Simple Definition

cytoplasm

a jellylike material in a cell
cytoplasm Simple Definition

cytoskeleton

the protein network that controls the cells shape and movement
cytoskeleton Simple Definition

endoplasmic reticulum

the membranes in a cells cytoplasm that move proteins
endoplasmic reticulum Simple Definition

eukaryote

a cell that has a membrane and nucleus
eukaryote Simple Definition

function

the special, normal, or proper activity of an organ or part
function Simple Definition

golgi body

the cell structure that packages materials for transport within and out of cell
golgi body Simple Definition

homeostasis

the maintenance of the stable internal conditions in an organism
homeostasis Simple Definition

lipid

an energy-rich organic compound such as a fat or oil
lipid Simple Definition

lysosome

a cell organelle that contains digestive enzymes
lysosome Simple Definition

mitochondrion

the cell organelle that releases energy from food molecules
mitochondrion Simple Definition

multicellular

an organism that is made up of many cells, like all animals, plants and fungi
multicellular Simple Definition

nucleic acid

a molecule made of nucelotides that contain genetic material, like DNA and RNA
nucleic acid Simple Definition

nucleus cell

the control center of a cell
nucleus cell Simple Definition

organ

a group of tissues that work together to perform a function, like the heart, liver or stomach
organ Simple Definition

organ system

a group of organs that work together to perform a specific function, like the digestive system
organ system Simple Definition

organelle

a structure in a cell, specialized to perform a specific function
organelle Simple Definition

organism

any living thing
organism Simple Definition

protein

an organic compound that is made of amino acids
protein Simple Definition

ribosome

a small cell structure that builds proteins
ribosome Simple Definition

structure

the parts of a organism as a whole
structure Simple Definition

tissue

a group of similar cells working together to perform the same function
tissue Simple Definition

unicellular

an organism made of a single cell
unicellular Simple Definition

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