Homework Chapter 5 Week 10 BIO 181 Lecture PDF

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Homework Chapter 5 Week 10 BIO 181 Lecture...

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BIO 181 General Biology TOPIC 2 Chapter 5 1. The part of an atom that carries a single negative charge is the ________Electron_____________.

2. The type of chemical bond formed when atoms share electrons is called ______Covalent Bonds________

3. A decomposition reaction is also called_______ analysis reactions or chemical breakdowns_______________.

4. If the pH of a substance is 5, then that substance is considered to be ________Acidic_________

5. Organic substances always contain the element ________Carbon____________.

6. ________Fatty __________ acid is the main building block of a lipid. ________Amino___________acid is the main building block of a protein.

7. Why is it that humans can digest starch and not cellulose? Humans are unable to digest cellulose because the appropriate enzymes to breakdown the beta acetal linkages are lacking. Humans can digest starch because of the alpha acetal linkages.

8. Dehydration reactions assemble ____polymers_______, and hydrolysis reactions break down ______polymers____________

9. Saturated fatty acids contain___no double________bonds and unsaturated fatty acid have___one or more double bonds___.

10. Lipids are not macromolecules .T/F It is true. Lipids are large molecules not macromolecules.

11. Human sex hormones are insoluble in water. Why?

Because of all of the nonpolar C-H bonds, sex hormones are not soluble in water. Sex hormones such as steroid are consider lipids which are known to be hydrophobic....