Across
- 3. the diffusion of water across a semipermeable membrane
- 7. a molecule made of amino acids, preforming various functions in the body
- 8. tiny openings on leaves that let CO2 in and O2 out
- 10. chemical bond of atoms that share electrons
- 11. movement of substances through the cell membrane without using energy
- 12. a molecule that has a positive and negative end
- 13. a chemical reaction that breaks a compound by adding water
- 15. a substance that speeds up a chemical reaction without being used up
Down
- 1. a small molecule that can join with others to form a polymer
- 2. the building blocks of proteins
- 4. a protein that speeds up biochemical reactions
- 5. a solution with the same concentration of solutes as another solution
- 6. having identical alleles for a particular genes
- 9. an organism that makes its own food through photosynthesis
- 13. the passing of genetic traits from parents to offspring through the transmission of genes
- 14. a sac inside chloroplasts where light reactions occur