Find Vocabulary and Meaning PDF

Summary

This document provides definitions for various scientific terms, including chemical elements, compounds, and molecular structures. It is a useful reference for students studying basic chemistry concepts.

Full Transcript

1. Find the vocabulary and meaning 2. Atoms: Smallest units of chemical elements. 3. Elements: Pure substances with one type atom. 4. Isotope: Atoms of the same element, differing neutrons. 5. Isomer: Same formula, different molecular structure. 6. Compound: Two or more elements bonded chemically. 7...

1. Find the vocabulary and meaning 2. Atoms: Smallest units of chemical elements. 3. Elements: Pure substances with one type atom. 4. Isotope: Atoms of the same element, differing neutrons. 5. Isomer: Same formula, different molecular structure. 6. Compound: Two or more elements bonded chemically. 7. Molecule: Smallest unit of a chemical compound. 8. Hydrogen bond: Weak bond between hydrogen and electronegative atom. 9. Polarity: Uneven charge distribution in a molecule. 10. Adhesion: Attraction between different substances or surfaces. 11. Cohesion: Attraction between molecules of the same substance. 12. Specific heat: Heat needed to raise temperature one degree. 13. Carbohydrate: Organic compounds used for energy, sugars. 14. Lipid: Hydrophobic molecules, including fats and oils. 15. Protein: Molecules made of amino acids, diverse functions. 16. Nucleic acid: Biopolymers storing genetic information, DNA/RNA. 17. Nucleotide: Building block of nucleic acids, includes phosphate. 18. Dehydration synthesis: Joins molecules by removing water molecule. 19. Hydrolysis: Breaks down molecules by adding water. 20. Monosaccharide: Single sugar unit, simplest carbohydrate form. 21. Polysaccharide: Long carbohydrate chains of sugar units. 22. Hydrophobic: Repels water, does not dissolve easily. 23. Hydrophilic: Attracts water, dissolves in it easily. 24. Polypeptide: Chain of amino acids, makes proteins. 25. Enzyme: Protein that accelerates biochemical reactions. 26. Hormone: Chemical messenger regulating physiological processes. 27. Adenine: DNA/RNA base, pairs with thymine/uracil. 28. Thymine: DNA base, pairs with adenine. 29. Guanine: DNA/RNA base, pairs with cytosine. 30. Cytosine: DNA/RNA base, pairs with guanine. 31. Uracil: RNA base, pairs with adenine. 32. mRNA: Messenger RNA, carries genetic information. 33. tRNA: Transfer RNA, brings amino acids to ribosome. 34. rRNA: Ribosomal RNA, part of ribosome structure. 35. Abiogenesis: Life arising naturally from non-living matter.

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