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Cell Organelles
cell organelles and their function
Question | Answer |
---|---|
the theory that states that all living things are made of one or more cells, the cell is the smallest unit of life, and all new cells come from preexisting cells | cell theory |
the smallest unit of life | cell |
a microscope that uses light and lenses to enlarge an image of an object | light microscope |
microscope that uses a magnetic field to focus a beam of electrons through an object or onto an objects surface | electron microscope |
a living thing that is made up of one or more cells. | multicellular organism |
a living thing that is mad up of only one cell | unicellular organism |
the process by which new organisms are produced | Reproduction |
an organism's ability to maintain steady internal conditions when outside conditions change | homeostasis |
a cell that does not have a nucleus or other membrane bound organelle | prokaryotic |
a cell that has a nucleus and other membrane bound organelles | eukaryotic |
a flexible covering that protects the inside of a cell from the environment outside the cell | cell membrane |
the liquid part of a cell inside the cell membrane; contains salts and other molecules | cytoplasm |
a stiff structure outside the cell membrane that protects the cell from being attacked by viruses and other harmful organisms | cell wall |
membrane-bound component of a eukaryotic cell with a specialized function | organelle |
a long chain of amino acid molecules; contains carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur | protein |
a series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP | cellular respiration |
a membrane bound organelle that uses light energy and makes food- a sugar called glucose- from water and carbon dioxide; known as Photosynthesis | chloroplast |
part of a eukaryotic cell that directs activity and contains genetic information that is stored in DNA | nucleus |