sceince terms

Photosynthesis

process by which most plants some protists and many types of bacteria make their own food

Cell membrane

Protective outer covering of all cells that regulates the interaction between the cell and the environment

Cytoplasm

Gel like material inside the cell

Cell wall

Rigid structure that encloses supports and protects the cells the cell

Organelle

Structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances.

Nucleus

organelle that controls all the activities of a cell and contains hereditary material made of proteins and DNA

Chloroplast

green chlorophyll-containing plant-cell organelle that uses light energy to produce sugar from carbon dioxide and water

Mitochondrion

cell organelle that breaks down food and releases energy

Ribosome

small cytoplasmic structure on which cells make their own proteins

Endoplasmic reticulum

cytoplasmic organelle that moves materials around the cell and is made up of a complex series of folded membranes

Golgi body

organelles that package cellular materials and transport them within the cell or out of the cell

Tissue

group of similar cells that work together to do one job

Organ

structure such as the heart made up of different types of tissues that all work together

Magnify

To increase the size of something

Cell theory

states that all organisms are made up of one or more cells the cell is the basic unit of life and all cells come from other cells

Disease

a condition that results from the disruption in function of one or more of an organism's normal processes

Virus

a stand of hereditary material surrounded by a protein coating

Host cell

living cell in which a virus can actively multiply or in which a virus can hide until activated by environmental stimuli

Lysosomes

Organelle that contains digestive chemicals th\at help break down food molecules, cell waste and worn-out cell parts

Vacuole

an organelle used for temporary storage of water waste products food and other cellular matterials