Across
- 3. division of the nucleus into two genetically identical daughter nuclei
- 6. binding together 2 molecules of the same type
- 8. structure of DNA strands
- 11. synthesized continuously following the replication fork
- 12. movement of substances that requires ATP and goes against the concentration gradient
- 15. synthesized in fragments moving away from the replication fork
- 20. compounds composed of carbon, hydrogen, and oxygen
- 21. substances with both hydrophilic and hydrophobic properties
- 22. magnifies images as small as 0.001 micrometers and revealed ultrastructure of cells
- 25. the process of cell division after mitosis
- 26. composed of a phosphate group, a base and a sugar
- 28. proteins used by the cell to package the DNA into nucleosomes
Down
- 1. hydrogen bonding between water and other polar molecules
- 2. special region on the surface of the enzyme to which substrates bond
- 3. sum of all the enzyme catalyzed reactions in an organism
- 4. breakdown of complex molecules into simpler ones
- 5. chains of subunits called nucleotides
- 7. substances that enzymes convert into products
- 9. diffusion of water with the concentration gradient
- 10. cell division in prokaryotic cells
- 13. the expression of some genes and not others in a cell's genome
- 14. process by which monosaccharides combine
- 15. class of molecules that are insoluble in water including steroids, waxes, and fatty acids
- 16. condensation of chromosomes during the first stage of mitosis
- 17. reactions that build up larger molecules from smaller ones
- 18. irreversible damage to protein structure
- 19. bond formed between the carboxyl group of one amino acid and the amine group of the other
- 22. explains the origin and evolution of eukaryotic cells
- 23. consists of a central core of 8 histone proteins with DNA coiled around the proteins
- 24. composed of one or more chains of amino acids
- 25. a group of proteins that control the cell cycle
- 27. all of the proteins produced by a cell, tissue or organism