Cell notes Flashcards
Cell
the basic unit of structure and function in an organism
*its shape and size contribute to its function
rober hoke
used a microscope to discover cells
microscope
tool used to magnify or enlarge small things
cell theory
- 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.
organelle
a tiny structure in the cell that perfomrs a function
nucleus
directs all cell activities (similar to the brain of the cell)
nucleolus
makes ribosomes
chromatin
contains DNA (genetic material that are the instructions for the cell)
DNA= deoxyribonucleic acid
nuclear membrane
surrounds the nucleus
cell membrane
selectively permeable membrane meaning it only lets specific materials move in and out of the cell
cytoplasm
gel-like material inside the cell
- cytosol is part of the cytoplasm
Endoplasmic Reticulum
(ER)
moves material around in the cell
- like a highway
ribosomes
make proteins and translate messages
golgi bodies
the packaging organelle
mitochondria
powerhouse of the cell because it breaks down food molecules and releases energy
*does cellular respiration