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Across 2. organic molecules possessing both carboxyl and amino groups 8. unit of inheritance 12. two kinds of smaller molecules: glycerol and fatty acids 13. sugars adn polymers 14. the covalent bond tha joins amino acids through a dehydration reaction 16. the pentose is connected toe this nitrogenous base 17. two molecules are covalently bonded to each other through loss of a water molecule 21. genes consist of DNA which is a polymer belinging to the class of compounds 24. two monosaccharides joined together 25. a strong covalent bond used to conform proteins 26. a polymer of glucose taht is like amylopectin but more extrememly branched

Down 1. a delicate coil held together by hydrogen bonding between every fourth amino acid 3. the building blocks of a polymer are small molecules 4. many hydrogen atoms bonded to the carbon skeleton 5. a unique three-dimensional shape 6. the protein may unravel and lose its native conformation 7. polymers of amino acids 8. a covalent bond formed between two monosaccharides by a dehydration reaction 9. one or more double bonds, formed by the reoval of hydrogen atoms formthe carbon skeleton 10. lipids charactersized by a carbon skeleton consisting of four fused rings 11. make up membrane bilayer 15. comes from greek word monos "single" and sacchar "sugar" 18. a storage polysaccharide of plants 19. a long molecule consisting of many identical or similar building blocks linked by covalent bonds 20. a process that is essentially the reverse of the dehyration reaction 22. a mojor component of the tough walls taht enclose plant cells 23. a type of steroid that is a common component of animal cell membranes and is also the precursor for which other steroids are synthesized