Year 8 Biology - Cell Biology

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Across
  1. 3. A microscopic protozoan that can be found in freshwater and saltwater environments.
  2. 4. A long, whip-like structure that helps some single celled organisms move. It is composed of microtubules.
  3. 7. One in which there is a greater concentration or number of solute particles outside a membrane than there are inside it.
  4. 8. So small as to be visible only with a microscope.
  5. 10. Less than—to the cell, and the net flow of water will be into the cell.
  6. 12. Do not have cell walls or chloroplasts, the organelle that carries out photosynthesis
  7. 13. Transport A movement of ions and other atomic or molecular substances across cell membranes without need of energy input.
  8. 16. 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.
  9. 17. The action of magnifying something or the process of being magnified.
  10. 19. A German physician and physiologist, co-founder of cell theory in animals.
  11. 20. cell Tissues that are swollen from water uptake.
  12. 21. Organelles found in plant cells and eukaryotic algae that conduct photosynthesis.
  13. 23. More than one young dog.
  14. 24. An individual animal, plant, or single-celled life form.
  15. 26. A group of cells that have similar structure and that function together as a unit.
  16. 28. A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
  17. 29. Eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.
  18. 31. 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.
  19. 32. Are closed sacs, made of membranes with inorganic or organic molecules inside, such as enzymes.
  20. 33. The movement of a substance from an area of high concentration to an area of low concentration.
  21. 34. The smallest particle of a chemical element that can exist.
  22. 36. A German botanist and co-founder of cell theory in plants.
  23. 37. 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.
  24. 38. Rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP).
Down
  1. 1. Are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes (Bacteria and Archaea), which have no membrane-bound organelles.
  2. 2. Basic unit of life.
  3. 5. Process by which DNA makes a copy of itself during cell division.
  4. 6. The body's recognizable structures (for example, the heart, lungs, liver, eyes, and stomach) that perform specific functions.
  5. 9. 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.
  6. 11. 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.
  7. 14. A chemical reaction that takes place inside a plant, producing food for the plant to survive.
  8. 15. An organism that consists of a single cell.
  9. 18. The integumentary, muscular, skeletal, nervous, circulatory, lymphatic, respiratory, endocrine, urinary/excretory, reproductive and digestive
  10. 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.
  11. 25. Organisms are organisms that consist of more than one cell.
  12. 27. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  13. 30. cell One in which the plasma membrane is not pressed tightly against the cell wall.
  14. 35. A type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.