Science

Science

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Question Answer
Carbohydrate One or more sugar molecules
Cell theory Living tings are made up of cells; the cell is the smallest unit of life; new cells come from preexisting cells
Lipids Don't dissolve in water
Macromolecule Forms by joining many small cells
Nucleic acid Macromolecules that form large chains made up of nucleotides
Protein Large chains of amino acid molecules
Theory The explanation of scientific knowledge
Cell membrane Protects the inside of a cell from the things outside
Cell wall Stiff structure outside the membrane of the cell
Chloroplast Makes food using sunlight and can only be found in a plant cell
Cytoplasm Fluid that contains salt in the cell
Cytoskeleton A network of proteins that are threadlike
Envelope Outer covering
Function Purpose for which something is used for
Nucleus Contains DNA
Active Transport Needs energy
Diffusion Goes from higher to lower
Endocytosis A cell takes in a substance by surrounding it with the cell membrane
Exocytosis A cells vesiscles release their contents outside the cell
Facilitated diffusion When molecules pass through a cell membrane using transport proteins
Osmosis Water
Passive transport Doesn't use the cells energy
Cellular respiration Series of chemical reactions that convert energy from food molecules into ATP
Fermentation Reaction used to obtain energy when food levels are low
Glycolysis Process by which glucose is broken down
Photosynthesis Converts light energy, water, and carbon dioxide into glucose and gives off oxygen

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