ESS 3 Lecture Notes - Lecture 12: Low-Density Lipoprotein, Beta-Carotene, Veganism

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olivegerbil603

7 Mar 2018

School

UCSB

Department

Exercise & Sport Studies

Course

ESS 3

Professor

Amy Jamieson

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Document Summary

Protein quality is a measure of how well a protein food meets our needs for protein synthesis. Based on proportion of essential amino acids (aas) Our body synthesizes protein by selecting the needed amino acids available at any given time. For protein synthesis to occur, all essential amino acids must be available to the cell. Limiting amino acid: the amino acid that is missing or in the smallest supply that is responsible for slowing protein synthesis. Incomplete proteins: foods that do not contain all of the essential amino acids to support growth and health. Complete proteins: foods that contain all 9 essential aas. Complementary proteins: combine two incomplete proteins to make complete proteins, examples: beans and grains, beans and nuts. Building blocks for most body structures (muscle, blood, skin) Regulators of fluid balance, edema caused by: Acid solution contains abundance or hydrogen ions (greater acidity = lower ph) Proteins attract hydrogen ions (act as buffers)

Related Questions

question 1

What would be the best guideline to a healthy diet according to your instructor which is validated by other resources.

	1.	Eat organic foods and primarily non-GMO foods.
	2.	Eat all your meals at home.
	3.	Eat a variety of foods.
	4.	Eat a vegetarian diet.

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QUESTION 2

A complete protein has all the 20 amino acids: 9 are essential for our body to consume and 11 our body makes on its own. We need 9 + 11 = complete protein to build muscle, repair cells, keep our immune system working properly, etc.

True

False

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QUESTION 3

It shouldn't be hard to reverse the GMO guidelines in this county.

True

False

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QUESTION 4

Out of a variety of foods you could eat, which one will make you feel the most full?

		Milkshake
		Salad
		Hamburg
		Beer, wine or hard liquors

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QUESTION 5

Which food has been identified as the food that cultures and people who have lived a very long life have always had in their diet?

		Chocolate
		Vegetables
		Whole grains
		Beans

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QUESTION 6

When we eat animal products: fish, turkey, chicken, duck, pork, beef, eggs, etc., these proteins when cooked give the body all the amino acids it needs to do the bodily functions that are dependent on protein.

True

False

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QUESTION 7

Trying new foods has value. Different foods gives the body more nutrition than having the same foods everyday. Your perception of food does change, thus how many times do you recommend to your family and friends to try a food they may not normally like throughout their life?

		2-3
		90-100
		7-8
		20

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QUESTION 8

Supplements should be taken with caution because they are unregulated by the FDA, they do not fall in the category of being food or medication.

True

False

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QUESTION 9

There is little scientific evidence that organic foods are more nutritious than conventionally grown foods.

True

False

1. What is an organic molecule?

2.Name three hydrocarbons and be able to draw their structural formulas.

3. What is an isomer? List and describe the three types (structural, geometric, and enantiomers).

4. Be able to recognize and describe the properties of these functional groups: aldehyde, ketone, hydroxyl, sulfhydryl, carboxyl, amino, and phosphate groups.

5. What is a monosaccharide? Give two examples of these molecules and their functions.

6. Describe these chemical reactions: dehydration synthesis (condensation reaction) and hydrolysis (rehydration).

7. What is a disaccharide? List two and give their functions.

8. What is a polysaccharide? List two storage forms and two structural forms. How are they formed and what is their specific function?

9. How do the pancreatic hormones insulin and glucagon regulate blood sugar levels?

10. What is molting and why is it necessary in certain animals?

11. What four molecules are bonded together to form a triglyceride or fat? Why are fats nonpolar? What are some functions of fats as well as other lipids such as oils and waxes?

12. How do saturated and unsaturated fats differ? Discuss bonding patterns and possible sources of these fats. Which type is healthier for you? Why?

13. Why do animals store most of their excess glucose as fats or oils rather than as glycogen or protein? Give two reasons.

14. What are phospholipids? Identify parts of the phospholipid bilayer that are hydrophobic or hydrophilic? What important cell structure do these molecules help create?

15. Describe the structure of a steroid. How is cholesterol used in beneficial ways in your body?

16. What are LDLs and HDLs? Which is considered good or bad cholesterol? What condition could result from high blood pressure?

17. What are four ways to either reduce high blood cholesterol or maintain a safe level?

18. What is the composition of an amino acid? Why would they be considered nonpolar, polar, acidic, or basic?

19. Define dipeptides and polypeptides.

20. Describe the primary structure of a protein. What type of bonding creates it?

21. What is the secondary structure of a protein? Name two types of secondary structure and indicate what type of bonding holds them together. List three fibrous proteins.

22. What is the tertiary structure of a protein? What types of bonds or chemical interactions allow a protein to maintain this structure? List three globular proteins.

23. What is the quaternary structure of a protein? Describe a hemoglobin molecule.

24. What are the subunits of nucleic acids and what is their composition? How are these subunits bonded together? What is DNS's basic shape?

25. List three differences between DNA and RNA.

QUESTION 11

A sustainable environment means to be maintained indefinitely and when we use products that have been altered by GMO's, genetically modified organisms, those crops cannot reproduce themselves.

True

False

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QUESTION 12

Which foods would not make a complement of 20 amino acids, to make a complete protein?

		Corn and beans
		Brown rice and peas
		Peanut butter and white bread
		Yogurt and walnuts

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QUESTION 13

Which nutrition tip would you not recommend?

		It is recommended to chew your food well.
		It is recommended to go long periods of time without eating to loose weight.
		When you eat out you can expect to get more salt and fat from the food.
		Eating often will not cause weight gain because one is less likely to overeat.

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QUESTION 14

Regarding fiber, which one is not correct?

		If you want to add fiber in your diet also eat the seeds and skins in fruits and vegetables.
		The removal of the outer husk or bran from our wheat diminished the integrity of our grains.
		The lack of fiber in the Western diet (that's our diet) was causing gastrointestinal problems that many countries and continents had not seen: diverticulitis, diverticulosis, constipation, increase in colon cancers, etc.
		You cannot eat too much fiber.

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QUESTION 15

Whey protein is a protein in milk that is most efficient in building muscle.

True

False

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QUESTION 16

Quinoa has been around for thousands of years, it is gluten free and a complete protein.

True

False

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QUESTION 17

Most of us donât get enough Vitamin D since our sun exposure is limited in the northern states. Vitamin D is made in our body with the help of the ultraviolet rays from the sun being absorbed by the skin. Vitamin D is vital for our immune system, skeletal structure hormone balance, and other bodily functions.

In answering this question, the other way we can get Vitamin D is primarily by eating fruits.

True

False

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QUESTION 18

The hypothalamus is our brain's appetite control center.

True

False

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QUESTION 19

The following explains information about antioxidants but one, which one is incorrect?

		We can't stop aging or get rid of the sun or live in a perfectly clean world but we can provide our body antioxidants that will fight free radicals.
		We know from our readings antioxidants are vitamin K and the minerals biotin and selenium.
		The foods with antioxidants are: all berries are great (strawberries, blackberries, blueberries, etc.), green leafy vegetables, carrots, tomatoes, dark chocolate, nuts, kidney beans and all beans, all herbs and foods mother nature provides us.
		The most effective compounds that can fight off free radicals are antioxidants, just as the name implies they counteract oxidation, the harmful reaction that takes place.

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QUESTION 20

It's best to drink beverages without calories. The calories from food leave us more satisfied than fluids and it's much easier to get additional unwanted calories from sodas, juices and lattes.

True False

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ESS 3 Lecture Notes - Lecture 12: Low-Density Lipoprotein, Beta-Carotene, Veganism

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