100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
DHN 212 exam with correct answers 2024 $13.99   Add to cart

Exam (elaborations)

DHN 212 exam with correct answers 2024

 6 views  0 purchase
  • Course
  • DHN 212 ex
  • Institution
  • DHN 212 Ex

Why are fats important in cooking and in the body? correct answers In cooking, they provide flavor, texture, appearance, and are emulsifiers. In the body, they insulate, serve as an energy source, are part of the cell membrane, and can be made into cholesterol for bile production. Are lipids ...

[Show more]

Preview 2 out of 7  pages

  • August 24, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • DHN 212 ex
  • DHN 212 ex
avatar-seller
HopeJewels
DHN 212 exam 2 study

Why are fats important in cooking and in the body? correct answers In cooking, they
provide flavor, texture, appearance, and are emulsifiers.
In the body, they insulate, serve as an energy source, are part of the cell membrane,
and can be made into cholesterol for bile production.

Are lipids organic? correct answers Yes

What are the three general categories of lipids? correct answers Triglycerides,
phospholipids, and sterols

Describe the parts of a triglyceride. correct answers 1 glycerol (three carbon sugar
backbone) + 3 fatty acids (MUFA, PUFA, SFA)

Compare and contrast the general characteristics of saturated and unsaturated fatty
acids - structures, sources, health effects. correct answers Saturated: means that all
the carbons on a fatty acid have a hydrogen; no double bond; increases risk for heart
disease. Ex: butter, Parmesan cheese, whole milk, whipped cream.
Unsaturated: liquid at room temperature; can be either monounsaturated (1 double
bond) or polyunsaturated (2+ double bonds). MUFAs may decrease risk for heart
disease. Ex of MUFA: olive oil, canola oil, avocado. Ex of PUFA: Omega-3 and omega-
6.

In general terms, describe the FA composition of canola oil, olive oil, butter fat, and
coconut oil. correct answers Canola oil: MUFA, PUFA, SFA.
Olive oil: MUFA, SFA, PUFA.
Butter fat: SFA, MUFA, PUFA.
Coconut oil: SFA, MUFA, PUFA.

Draw the structure of an 18-carbon saturated FA. correct answers see review sheet

What are the health benefits of consuming omega-3 fatty acids? correct answers
Reduces the risk for heart disease, depression, dental disease, arthritis, Alzheimer's,
etc. Improves immune function, brain development in infants, and memory.

What are food sources of omega-3 FA? correct answers Flax/chia seeds, fish, hemp
oil, walnuts, almonds, wheat germ, canola oil, breast milk, and soybeans.

What advice do you have about including fish in the diet? correct answers Aim for 2-3
servings per week, varying the type.

What is a potential concern with excessive fish intake? correct answers Mercury toxicity

, How is a trans-fat different than a saturated fat? correct answers Bond altered from a
cis to trans configuration as a result of being hydrogenated

How are most trans-fats made? correct answers Most made as a result of
hydrogenation process

What are trans fats effect on health? correct answers Increases risk for heart disease,
stroke, and type 2 diabetes. Raises LDL and lowers HDL.

How is the structure of a phospholipid different than that of a TG? correct answers
Their structures are similar except for one of the FA chains in PL's are replaced by a
phosphorous-containing group.

What are key functions of phospholipids? correct answers Part of the cell membrane &
emulsifier

What are examples of sterols? correct answers Cholesterol (bile), vitamin D, some
hormones

Why is cholesterol important to the body? correct answers It's an important structure of
the brain and nerve cells

Where is cholesterol made in the body and how much does this contribute to a person's
total blood cholesterol levels? correct answers 2/3 of total levels are made in the liver
and 1/3 is consumed from dietary animal products.

Be familiar with the steps in the process of lipid digestion and absorption (from handout
and diagram in textbook). correct answers 1. Triglycerides detected in the duodenum.
Then bile is released from the gallbladder. Bile emulsifies fat droplets.

What is the function of all lipoproteins? correct answers To transport fat in blood

What are the four parts to a lipoprotein? correct answers Phospholipid, protein,
cholesterol, triglyceride

What are the major classes of lipoproteins? correct answers Chylomicrons: How you
measure blood TG levels
VLDL: Very low-density lipoproteins that are made in the liver
LDL: Low-density lipoproteins that were converted from VLDL to LDL in blood vessels
HDL: High-density lipoproteins that are made in the liver

Contrast LDL and HDL - be able to describe in professional and layman's terms. correct
answers -> LDL is a concentrated source of cholesterol, largely impacted by SFA. If
your body doesn't need lipids as an energy source, LDL transports them from the liver
to other tissues like muscle and fat. It then clogs those blood vessels.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller HopeJewels. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79271 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$13.99
  • (0)
  Add to cart