BIOLOGY CROSSWORD

2. are soluble protein molecules that can speed up chemical reactions in cells
5. catalysts which speed up chemical reactions, but remain unchanged themselves
7. consist of either one or two long chains of repeating units called nucleotides, which consist of a nitrogen base
11. A chemical reaction in which two molecules combine to form a larger molecule with the elimination of a small molecule (H 2O in biological systems)
12. are large molecules composed of many similar smaller molecules linked together
13. A chemical bond formed by the sharing of one or more electrons
14. are the building blocks of all biological proteins
17. refers to the sticking together of alike molecules, such as water molecule being attracted to another water molecule
19. The specific action of an enzyme with a single substrate can be explained using a
21. Any of a series of sweet-tasting, crystalline carbohydrates
22. the basic unit of a chemical element

1. is the process of joining two molecules, or compounds, together following the removal of water
3. The force of attraction between unlike molecules, or the attraction between the surfaces of contacting bodies
4. a weak chemical bond between an electronegative atom, such as fluorine, oxygen, or nitrogen
6. A tiny or a very small piece of something.
8. A molecule that may react chemically to another molecule of the same type to form a larger molecule, such as dimer, trimer, tetramer, polymer, etc.
9. A large complex molecule, such as nucleic acids, proteins, carbohydrates, and lipids, with relatively large molecular weight. Supplement
10. comprise a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble
15. are molecular compounds made from just three elements
16. a substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with identical number of protons.
18. A chemical bond formed between two ions with opposite charges
20. is a measure of the hydrogen ion concentration of a solution