A student prepared this table to gather information about digestion. Digestion of Food Column A Column B Physical Changes Chemical Changes The results of which investigation would be entered in Column A of the table? A. How do mitochondria release the energy in food molecules? B. Which type of teeth are most important in crushing food? C. What chemicals in the stomach are most important in breaking down proteins? D How do substances released by the pancreas affect the rate of digestion?

B. Which type of teeth are most important in crushing food?

Explanation:

According to the question physical changes ought to be entered into column A while chemical changes ought to be entered into column B.

The crushing of food is a physical change. It does not involve any chemical transformation of the food material.The other options involve some sort of chemical transformation taking place on the food material being digested.

CHEMISTRY IS DUMB

Explanation:

TIME FOr THE Ax? The Situation You are the sales manager for a well-established medical equipment company. You’ve been with the company a long time and, generally, you really enjoy your job. The company’s new president is interested in proving herself and has set a goal of 10 percent sales growth per year. Each sales representative has a quota that they are expected to meet. Those who exceed their quota will receive a bonus, and those who fall short of their quota will be fired or placed on probation.

The Dilemma

Your sales staff have worked really hard over the past year

to meet their new quotas. Six of the eight representatives met

their quotas and received bonuses. However, two others have

fallen below. Jane fell 2 percent short of her quota and you’re not surprised. She’s not hard working and often leaves work early to

play golf. Bill, on the other hand, has been with the company a

long time and is widely respected for his work ethic. However,

he’s struggling to care for his sick mother and fell 7 percent

below his quota. You know that control is an important part of

being a manager, but you’re unsure what to do. The company

president has asked to meet with you tomorrow to discuss the

situation.

QUESTIONS TO ADDRESS

5-21. Which management functions are involved in setting

goals and measuring performance?

5-22. What are the ethical issues in this situation?

5-23. What do you think most managers would do in this

situation?

5-24. What would you do?