Which of the following best describes a feature/s of fats that makes them an ideal energy storage macromolecule? Da. They do not interact with water therefore they do not affect cellular osmolarity when stored b. They are highly reduced Oc They produce a lot of energy Od. They are long chain hydrocarbons

Which of the following best describes a feature/s of fats that makes them an ideal energy storage macromolecule? Da. They do not interact with water therefore they do not affect cellular osmolarity when stored b. They are highly reduced Oc They produce a lot of energy Od. They are long chain hydrocarbons

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter16: Specialized Nutrition Support: Enteral And Parenteral Nutrition

Section: Chapter Questions

Problem 2CA

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Lipoprotein particles are relatively large, sphericalclumps of protein and lipid molecules (see Figure 3.18)that circulate in the blood of mammals. They are likesuitcases that move cholesterol, fatty acid remnants, triglycerides, and phospholipids from one place to anotherin the body. Given what you know about the solubilityof lipids in water, which types of lipids would you predict to be on the outside of a lipoprotein clump, bathedin the water-based fluid portion of blood?
Oils can be converted to fats by a commercial process catalyzed bynickel which is called partial hydrogenation. In relatively mild conditions (180ºC and pressures of about 1.33 atm) a sufficient number of double bonds are hydrogenated and solidify liquid oils. This solid material, margarine, has a consistency similar to butter. Come up with a practical reason why oils don'tthey are completely hydrogenated during commercial hydrogenation processes.
Which is NOT true of plasma-membrane-bound carbohydrates? O They are found on the noncytosolic outer face of the plasma membrane. O They protect the plasma membrane from harsh conditions. O They prevent cell-cell adhesion. O They make up the glycocalyx or cell coat. O They are added to proteins within the lumen of ER or Golgi.
Which of the following is NOT TRUE about unsaturated fatty acids?
Glycolipids are nonionic lipids that can orient themselvesinto bilayers as phospholipids do. They accomplish this featalthough they lack an ionic group like that of the phospholipids. Suggest a reason why this is possible.
Which portion of a glycerophospholipid molecule forms the interfacial region of a lipid bilayer? O The -CH2 groups along the hydrocarbon chain. O Sterol rings O Sphingosine head group O The polar head group
None
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These macromolecules self-assemble when exposed to water.and make up the primary component of cell membranes O a. Unsaturated fats O b. Saturated fats O c. Steroids Od. Phospholipids e. Proteins Of. Carbohydrates
Triglycerides are comprised of glycerol plus ____ fatty acids, and are ____ compared to fatty acids. 3; more polar 3; less polar 2; less polar 2; more polar
Which of the following statements about saturated fatty acids are true? O Saturated fatty acids in are found naturally in animal products. O All bonds between carbon atoms on the fatty-acid chain are double bonds. O Saturated fatty acid are solid at room temperature. O No bonds on the fatty-acid chain are attached to hydrogen atoms.
The following are functions of lipids EXCEPT A. Isolate cellular components from its environment B. Serve as signal molecules and mediators of cellular processes C. Membrane fluidity determinant D. Alternative energy source of cells O E. Facilitate movement of metabolites in and out of cells