vocab 2 science hard words

organelles

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

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

constantly moving gel-like mixture inside the cell membrane that contains heredity material and is the location of most of a cell’s life process.

nucleus

organelle that controls all the activites of the cell and contains herdity material made of proteins and DNA; positively charged, central part of an atom.

chloroplasts

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

mitochondrion

cell organelle that breaks down food and releases energy.

ribosomes

small cytoplasmic structure on which cells make their own proteins.

endoplasmic reticulum

cytoplasmic organelle that moves materials around in a cell and is made up of a complex series of folded membranes; can be rough (with attached ribosomes) or smooth (without attached ribosomes)

Golgi bodies

organelles

tissue

group of similar cells that work together to do one thing.

organ

structure, such as the heart, made up of different types of tissues that work together to do one job.

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.

virus

a strand 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

disease

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

magnify

to increase the size of something

Lysosomes

contains digestive chemicals that help break down food molecules, cell water, and worn-out cell parts.

Vacuole

a membrane-bound space for temporary storage of materials. It can store waste, water, food or other cellular material.