Science Quiz Bee Answers

Science Quiz Bee Answers 1. 96% human body - Carbon, Hydrogen, Oxygen, Nitrogen 2. Minute element needed by humans - Iodine 3. Elements have different chemical properties because of different radioactive properties - Isotopes 4. Water molecule bonding - Hydrogen bonding 5. Something question about changing the calories to kcal... SADLY I do not remember huhu but the answer is 1 kg of H2O by 1 degree Celsius 6. Hydrophobic substances are nonpolar substances and they repel H2O molecules 7. Carbon molecule bonding - Covalent bond 8. Organic Chemistry - Study of carbon compounds 9. Insoluble fiber - Cellulose 10. Lactose - Is a disaccharide, combination of glucose and galactose 11. Saturated fats have single bonds not multiple double bonds 12. Lipids are insoluble to water 13. Amino acid structure - Alpha helix and beta turn (secondary level structure) 14. DNA - Nitrogenous base + Phosphate group + Pentose sugar 15. Most important lipids in biological membranes - Phospholipid 16. Organic compound in primitive atmosphere - Methane 17. Cellulose passes the human digestive tract unchanged 18. Simplest sugar, sub-unit of carbohydrates - Monosaccharides 19. Lipids are biochemicals that store energy and make up the cell membrane 20. Nucleotides are composed of nucleic acid chain/nitrogenous base + phosphate group + pentose sugar 21. Marcomolecules are large molecules, combining many polymers and carbon atoms as their backbone