Additional Science Glossary gloassry words and definition 5.0 / 5 based on 2 ratings ? ScienceBiologyGCSEAQA Created by: Benjamin John CarterCreated on: 08-04-13 17:17 43651278910 Across 1. Gland in the mouth which produces saliva containing the enzyme amylase. (8, 5) 6. Individual who is heterozygous for a faulty allele that causes a genetic disease in the homozygous form. (7) 7. A tiny positive particle found inside the nucleus of an atom. (6) 8. A charged particle produced by the loss or gain of electrons. (3) 9. The chemical opposite of an alkali. when dissolved in water, its solution has a pH number less than 7. acids are proton H+ donors. (4) 10. A salt is a compound formed when some or all of the hydrogen in an acid is replaced by a metal (or by an ammonium ion). For example, potassium nitrate, KNO3 (from nitric acid) (4) Down 2. Speed in a given direction (in metres/second, m/s). (8) 3. The organelle in which photosynthesis takes place. (11) 4. The chemical reaction of an acid with a base in which they cancel each other out, forming a salt and water. If the base is a carbonate or hydrogen carbonate, carbon dioxide is also produced in the reaction. (14) 5. The extra oxygen that must be taken into the body after exercise has stopped to complete the aerobic respiration of lactic acid. (6, 4)
Comments
No comments have yet been made