Science Practice Puzzle

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  1. 3. As such, plants look green because they absorb red light most efficiently and the green light is reflected.Aug 28, 2019
  2. 7. each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells.
  3. 8. dioxide a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.
  4. 10. a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.
  5. 12. a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
  6. 13. a thing or person that is the result of an action or process.
  7. 14. a cell that is a structural and functional unit of a plant
  8. 15. the vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves.
  9. 16. any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width which allows movement of gases in and out of the intercellular spaces.
  10. 17. in the region of the electromagnetic spectrum perceptible to human vision.
Down
  1. 1. (in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.
  2. 2. a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.
  3. 4. a substance that takes part in and undergoes change during a reaction.
  4. 5. the star around which the earth orbits.
  5. 6. a simple sugar which is an important energy source in living organisms and is a component of many carbohydrates.
  6. 9. the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.
  7. 11. is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.