Year 8 Biology - Cell Biology

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Across
  1. 2. The smallest particle of a chemical element that can exist.
  2. 4. Theory that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
  3. 7. The spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
  4. 9. Eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.
  5. 10. Respiration of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.
  6. 13. Are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes (Bacteria and Archaea), which have no membrane-bound organelles.
  7. 14. Organelles found in plant cells and eukaryotic algae that conduct photosynthesis.
  8. 15. The body's recognizable structures (for example, the heart, lungs, liver, eyes, and stomach) that perform specific functions.
  9. 16. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  10. 19. A German botanist and co-founder of cell theory in plants.
  11. 20. The movement of a substance from an area of high concentration to an area of low concentration.
  12. 22. The extracellular fluid has the same osmolarity as the cell, and there will be no net movement of water into or out of the cell.
  13. 24. Organisms are organisms that consist of more than one cell.
  14. 25. A chemical reaction that takes place inside a plant, producing food for the plant to survive.
  15. 27. The process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles.
  16. 29. A microscopic protozoan that can be found in freshwater and saltwater environments.
Down
  1. 1. Are closed sacs, made of membranes with inorganic or organic molecules inside, such as enzymes.
  2. 3. An individual animal, plant, or single-celled life form.
  3. 4. Basic unit of life.
  4. 5. A long, whip-like structure that helps some single celled organisms move. It is composed of microtubules.
  5. 6. A German physician and physiologist, co-founder of cell theory in animals.
  6. 8. A type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.
  7. 11. Rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP).
  8. 12. One in which there is a greater concentration or number of solute particles outside a membrane than there are inside it.
  9. 17. Less than—to the cell, and the net flow of water will be into the cell.
  10. 18. An organism that consists of a single cell.
  11. 21. Process by which DNA makes a copy of itself during cell division.
  12. 23. The integumentary, muscular, skeletal, nervous, circulatory, lymphatic, respiratory, endocrine, urinary/excretory, reproductive and digestive
  13. 26. Do not have cell walls or chloroplasts, the organelle that carries out photosynthesis
  14. 28. Transport A movement of ions and other atomic or molecular substances across cell membranes without need of energy input.