CELL NOTES☐☐～(つˆДˆ)つ｡☆

the basic unit of structure and function in an organism *its shape and size contribute to its function

used a microscope to discover cells

tool used to magnify or enlarge small things

• All organisms are made up of one or more cells. • Cells are the basic units of structure and function in all living things • All cells come from cells that already exist.

a tiny structure in the cell that performs a function

directs all cell activities (similar to the brain of the cell

makes ribosomes

contains DNA (genetic material that are the instructions for the cell) DNA= deoxyribonucleic acid

surrounds the nucleus

selectively permeable membrane meaning it only lets specific materials move in and out of the cell

gel-like material inside the cell - cytosol is part of the cytoplasm

moves material around in the cell

make proteins and translate messages

the packaging organelle

powerhouse of the cell because it breaks down food molecules and releases energy *does cellular respiration

storage area in the cell

digest wastes and worn-out cell parts, “cleans” the cell

contain a chemical called chlorophyll (absorbs the sun’s energy & makes the plant green) and allows the plant to make food for itself (like solar panels) *does photosynthesis *only in plants

outer boundary of plant cell, rigid & tough, provides support and shape -made of cellulose *only in plants

Cells that do not have a nucleus, usually unicellular

Cells contain a nucleus and other organelles