Lecture 3B: Wilbur

Some Results from SQ Week 2

(LECTURE 3B follows the results.)

For which of the following nutrients was your intake UNDER the TARGET Recommendation?

	(%)
Protein	19
Total Fiber	56
Saturated Fat	33
Vitamin E	74
Vitamin B₆	44
Vitamin B₁₂	33
Calcium	56
Magnesium	56
Iron	63
Zinc	59
Selenium	15
Potassium	75
Vitamin D	67
None of the above. I was above my “Recommendation or Acceptable Range” for all nutrients.	0

Which groups were you UNDER the target recommendation? (Select all that apply.)

	(%)
Grains	44
Vegetables	65
Fruits	56
Dairy	63
Protein Foods	33
None of the above. I was above my target recommendation for all groups.	0

FN 225: Nutrition
Teresa McFerran, M.S., R.D.
Health Professions Division
Lane Community College
Eugene, Oregon

LECTURE 3B: Wilbur and Solar Power

The Lectures NEXT week (Week 4) are longer than usual, so please plan your time for next week accordingly.

FORUM:

1. As you can see in the above results from the diet analysis project, students report being low in many vitamins, minerals, and fiber. Pick a nutrient you were low in, and use your text (chapters 4, 7, 8, 9, 10) to identify good food sources of these nutrients. What is one realistic change you could make to your diet to increase your intake of one of these nutrients? For example, almonds are a good source of Vitamin E, 9mg for 1/4 cup. I like to incorporate almonds into my snacks (usually 1 oz, which is the size of a golf ball, with a piece of fruit).

2. As you can see in the above results from the diet analysis project, a large percentage of students report being low in vegetables. What kind of strategies do you use or could you use to eat more vegetables?

Note: Overall, students are low in most food groups. I find that when I review food records from students, they don't report eating much of anything. If you don't eat, it is going to be hard to meet the recommendations for nutrient intake. Students also reported being low in dairy, but from my experience you don't need 3 c. of dairy to get the nutrients like calcium that you need. Usually 2 c. is plenty as long as you are meeting the recommendations from the other food groups.

Lecture
For this lecture, have in front of you the "Wilbur Drawing" and "Your Notes about the Wilbur Drawing" and "Wilbur and Solar Power" in the lecture outline for Week 3 (which you can print off of moodle).

The "Wilbur Drawing" in your lecture outline is subtitled "How Energy Goes from the Sun to Human Cells". I will be using corn as a specific example of this, but it's what happens in all plants.

It's sort of hard to read the bottom of the "Wilbur Drawing. It says in cells everywhere in body.

I used two books in particular to help me learn more about this process. Both can be found at the LCC Library. Here's one of them.

I chose corn because it's a crop native to the Americas. The illustration on the right shows rice, which would be better used to illustrate this process if we were in Asia.

The other book I used was Isaac Asimov's book Photosynthesis. He was a Russian-born biochemist and writer who died an American in 1992.

Isaac Asimov is the author of 300 books, many of them science fiction.

5 steps of the Wilbur Drawing

Photosynthesis

Where is the Wilbur Drawing showing photosynthesis taking place?
Making starch in the plant. The plant can bond more than 1000 molecules of glucose together to make starch.

Where in the Wilbur Drawing does it show starch being made in the plant?
Digestion. The starch in the popcorn is digested down to individual glucose molecules. Where is the Wilbur Drawing showing starch enzymes being present? You should see TWO places.
Absorption & Transport. The individual glucose molecules are absorbed from the small intestine into the bloodstream which transports them to cells everywhere.
Cellular Respiration- Inside cells everywhere, the glucose is broken apart, releasing its energy. Only then does Wilbur get any energy out of the popcorn.

The two videos below will explain these 5 steps in more depth.