PSY 1100 HW 3 Instructions & Worksheet PDF

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homework for prof schlosnagle...

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Homework 3 Instructions (PSY 1100) First, watch this video on YouTube, which describes the relations between diet, free radicals and life expectancy: https://www.youtube.com/watch?v=9jvqNG1g62Y

Then, read the .pdf document named “HW 3 Source Article” (available on Canvas) Lastly, complete the “Homework 3 Worksheet” (below), and upload the completed document (in MS Word Format) to Canvas by the deadline. TYPE your answers into the worksheet below using BLUE text:

Homework 3 Worksheet (PSY 1100) Your Name:

Olivia Higgins

Your Class and Section (e.g.; “PSY 1100-003”): PSY1100-006

For questions 1-4 below, aim for 1-5 sentences per response. 1. Using information from the video and source article, briefly summarize the free radical theory of aging, and how diet impacts life expectancy. A free radical is a reactive oxygen molecule, and antioxidants are naturally produced chemicals that destroy or disable free radicals. If you have to many free radicals in your body, your cells will die faster, therefore antioxidants are essential in prolonging cell life. If you eat food that are highly nutritional and low in calories, your life expectancy is longer since antioxidants are found in low cal but high nutritional foods. 2. In the video, what were researchers finding regarding the use of antioxidant supplements? They found that supplements had no effect and that the only way to get antioxidants is to eat the foods that have them. 3. Based on the video, would calorie restriction have the same effects regardless of what types of food were being eaten? In other words, is how much one eats all that matters, or does it also matter what one eats? A calorie restricted diet is only effective is the foods you eat are highly nutritional. For example, a candy bar could have the same amount of calories as an apple, but the apple is far better for your health than the candy bar.

4. Other than the topic, there was a major difference between the source article for this homework, and the source articles for Homeworks 1 and 2. What was the main difference between this source article, and the previous ones from Homework 1 and Homework 2? This source article is different from HW 1 and 2 because 1 and 2 were based off of research and numerical data, but this source has no numerical data to it because it is a relatively new theory, therefore there is no numerical data and you can only look at research done.

For the following multiple choice questions, respond by putting an “X” next to your choice 5. Based on the source article, reactive oxygen species can: □ A. lead to cell aging □ B. extend cell life □ C. lead to cell overgrowth, and possibly cancer X D. Both A and C

6. Based on the source article, the human body: □ does not produce antioxidants X does produce antioxidants □ ages less quickly when more reactive oxygen species are present □ will not age any more quickly or slowly based on how many antioxidants are present

7. The calorie restricted diets in the video: □ may increase life expectancy by increasing the amount of free radical oxygen molecules □ may decrease life expectancy by decreasing the amount of antioxidants X may increase life expectancy by decreasing the amount of free radical oxygen molecules □ generally always reduces life expectancy

8. The monkeys in the video who had calorie restricted diets: □ were less healthy than monkeys on normal diets □ were no different than monkeys on normal diets □ had more cell damage than monkeys on a normal diet X had less cell damage than monkeys on a normal diet

9. The mice in the video who were on a calorie restricted diet: X A. were noticeably more active than the mice on normal diets □ B. were noticeably less active than the mice on normal diets □ C. were more likely to develop age-related illnesses than the mice on normal diets □ D. Both B and C

10. (Bonus Points) The source article notes that: □ Free radicals can only be consumed through food X Free radicals can be inhaled □ Excess free radicals will slow aging □ Excess antioxidants will slow aging...