Unit 3 Cell Vocabulary

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Across
  1. 2. a class of molecules that includes sugar, starches, and fiber
  2. 4. reticulum a system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
  3. 8. a fluid- filled vesicle found in the cytoplasm of plant cells or protozoarios
  4. 11. acid a molecule made up of subunits called nucleotides
  5. 13. the diffusion of water through a semipermeable membrane
  6. 14. transport the movement of substances across the cell membrane that requires the cell to use energy
  7. 15. compound a covalently bonded compound that contains carbon
  8. 17. the cytoplasm network or protein filaments that plays an essential role in cell movement, shape, and division
  9. 18. transport the movement of substances across a cell membrane without the use of energy by the cell
  10. 19. a molecule that is made up of amino acids and and that is needed to build and repair body structures and regulate processes in the body
Down
  1. 1. the process by which plants, algae, and some bacteria use sunlight, carbon dioxide and water to make food
  2. 3. the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell
  3. 4. substances that cannot be separated or broken down into simpler substances by chemical means
  4. 5. the movement of particles from regions of higher density to regions of lower density
  5. 6. a green pigment that captures light energy for photosynthesis
  6. 7. fat molecule or molecule that has similar properties
  7. 9. the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface
  8. 10. in eukaryotic cells, a process of cell division that forms two new nuclei, each of which had the same number of chromosomes
  9. 12. respiration The process by which cells use oxygen to produce energy from food
  10. 16. the smallest unit of an element that maintains the properties of that element
  11. 17. theory the theory states that all living things are made up of cells, that cells are the basic units of organisms, that each cell in a multicellular organism has a specific job, and that cells only come from existing cells