WARM UP #3 IS DUE BEFORE 9:30 AM WEDNESDAY, JANUARY 31, 2001

Please type in the last 4 digits of your SSN: (Important!)
Please type your LAST name: Please type your FIRST name:
Please type in a 'nickname': (In case your answer is used in class)

The following three questions refer to material you were to read in preparation for class (Chapter 2). These questions require you to write a three or four sentence response. It is OK to answer 'I don't know' - but try and state why you are confused! Each WarmUp worth 6 points if answered on time and must be submitted via the web.

Warm Up 1 responses,Warm Up 2 responses,Warm Up 3 responses, Warm Up 4 responses, Warm Up 5 responses, Warm Up 6 responses, Warm Up 7 responses, Warm Up 8 responses, Warm Up 9 responses, Warm Up 10 responses, Warm Up 11 responses, Warm Up 12 responses, Warm Up 13 responses, Warm Up 14 responses.

QUESTION 1: Starch (like bread, pasta) is a glucose polymer that gives us energy, but cellulose, an almost identical glucose polymer, is indigestible. Why do you think that ONE of these almost identical molecules can be digested, while the other can't? Why is cellulose (non-nutritive and indigestible) a very necessary part of our diet?

QUESTION 2: Butter and oil are both fats. Why is butter a solid at room temperature, but corn oil a liquid? What is "soft margerine"?

QUESTION 3: When we eat the cells of another animal (like muscle cells - hamburger, or leaf cells - spinach) what happens to the protein and the DNA in those cells that we eat? How are we able to use cow proteins and cow DNA, or spinach proteins and spinach DNA for the growth and development of our human bodies?

GIVE ME YOUR OPINION: Below is space for your thoughts, including general comments about class so far (what seemed impossible, what didn't make sense, what we should spend class time on, what was "cool", etc....)

You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button. You will receive a "THANK YOU" page as a confirmation that your response has been sent to me.