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Ch.2 Vocab

Across
Membrane-bound organelles that use light energy and make food a sugar called glucose from water and carbon dioxide in a process known as photosynthesis
A single or chain of sugar molecules
Stiff structure outside the cell membrane
Movement of substances from an area of higher concentration to an area of lower concentration
Molecules pass through a cell membrane using special proteins called transport proteins
Movement of substances through a cell membrane without using the cell's energy
Process by which glucose a sugar, is broken down into smaller moledules
A large macromolecule that does not dissolve in water
Series of chemical reactions that convert light energy and water. into the food-energy molecule glucose and give off oxygen
States that all living things are made of one or more
Process during which a cell takes in a substance by surrounding it with the cell membrane
Is the diffusion of water molecules only through a membrane
Down
Macromolecules that form when long chains of molecules called nucleotides
Substances formed by joining many small molecules together
Fluid inside a cell that contains salts and other miledules
A network of threadlike proteins that are joined together
Long chains of amino acid molecules
Movement of substances through a cell membrane only by using the cell's energy
Flexible covering that protects the inside of a cell from the environment
Series of chemical reactions that convert the energy in food molecules into a usable form of energy called atp
The part of a eukaryotic dell that directs cell activities and contains genetic info stored in DNA
Eukaryotic cells have other structures that have specialized functions called this
Process during which a cell's vesicles release their contents outside the cell