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1. What is an acid? What do acids do with hydrogen ions? 2. What is a base? What do bases do with hydrogen ions? 3. What are the three fundamental
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Question

1. What is an acid? What do acids do with hydrogen ions? 2. What is a base? What do bases do with hydrogen ions?

3. What are the three fundamental parts of an atom, and what is the charge on


each?


4. Can you tell what an atom is by looking at its subatomic elements? How?


5. What is the difference between Carbon 12 and Carbon 14?


6. Nitrogen's atomic number is 7. How many protons does nitrogen have?


7. What is the pH of a lemon?


8. You walk into lab and see that there is a liquid burning a hole in the floor. You


test it with a handy pH test strip and find that its pH is less than 1 What kind of


substance is on the floor?


9. Which element is central to the molecules that make up the living world?


10. What does diffusion mean?


11. Which of the following cells is hypertonic, isotonic, hypotonic?


What do these terms mean?


12. What does osmosis mean?


13. What does osmosis have to do with living processes?


14. What is passive transport?


15. What is endocytosis?


16. What is facilitated diffusion?


17. What is active transport?


18. What is phagocytosis?


19. According to the fluid-mosaic model of membrane structure, the membrane is


made up of a:


a. Continuous base of proteins with phospholipids in it that have fairly free


lateral movement


b. Bilayer of phospholipids with proteins interspersed in it that have fairly free


lateral movement


c. Bilayer of protein with layers of phospholipids on the outside and inside


d. Bilayer of phospholipids with layers of proteins on the outside and inside



e. Bialyer of phospholipid sandwiched between two bilayers of proteins.


20. Because of the fatty acid chains that help make up the phospholipid bilayer, the


only substances that can pass through the plasma membrane purely by means


of diffusion are:


a. Small proteins.


b. Amino acids and lipids


c. Small carbohydrates


d. Lipids or very small polar molecules


e. Lipids or polar molecules of any size


21. You cut your finger and some bacteria enter. Your immune system cells kill offf


the invaders by ingesting them. This is an example of:


a. Pinocytosis


b. Phagocytosis


c. Receptor-mediated endocytosis


d. Exocytosis


e. Active Transport.


22. What are the two forms of energy discussed in lecture?


23. What are the first and second laws of thermodynamics?


24. Does either law of thermodynamics disprove evolution?


25. What is an endergonic reaction?


26. What is an exergonic reaction?


27. What is ATP?


28. People who are lactose intolerant lack a compound called lactase in their


digestive tract. You know that this compound, lactase, is probably a(n):


a. Hormone, because it causes a change in the person


b. Coenzyme, because it helps the enzyme, lactose, do its job


c. Vitamin because it is essential to health


d. Substrate, because it is involved with food.


e. Enzyme, because its name ends in -ase.


29. Enzymes:


a. Accelerate specific chemical reaction


b. Are not chemically altered by binding with a substrate


c. Lower the activation energy of specific chemical reactions


d. All of the above.


e. A and c only


30. Each molecule of ATP stores a good deal of energy because:


a. ATP is such a large protein.


b. ATP captures energy directly from the sun.


c. ATP's third phosphate group exists in a highly energetic state



d. A long metabolic pathway is required for the production of ATP


31. What is it called when an enzyme (or any protein) is destroyed?


32. Which of the four biomolecules in an enzyme?


33. What is competitive inhibition of an enzyme?


34. What is meant by allosteric regulation of an enzyme?

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