Which of the following is false about carbohydrates? a. they serve as supportive structure; and protective components in the cell walls of the bacteria and plants b. they are essential components of the genetic material c. they can act as ligands and receptors in cellular communication d. they are generally non-polar and supply the body with fat-soluble vitamins

Which of the following is false about carbohydrates? a. they serve as supportive structure; and protective components in the cell walls of the bacteria and plants b. they are essential components of the genetic material c. they can act as ligands and receptors in cellular communication d. they are generally non-polar and supply the body with fat-soluble vitamins

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter4: Lipids

Section: Chapter Questions

Problem 5SC

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Which of the following is FALSE about carbohydrates? a. They are essential components of the genetic material. b. They serve as supportive structural and protective components in the cell walls of bacteria and plants. c. They can act as ligands and receptors in cellular communication. d. They are generally non-polar and supply the body with fat-soluble vitamins.
Meringue in “Lemon Meringue Pie” can be made from egg whites but not whole eggs, because whole eggs: a. contain the food-borne pathogen Salmonella enterica b. contain the emulsifying agent lecithin c. contain more than 50 proteins that can be denatured by the low pH of lemon juice d. contain the amino acid tryptophan whereas egg whites do not e. have a pH of 9.0
In contrast to other fatty acids, essential fatty acidsa. are always saturated fats.b. cannot be synthesized by the organism and are necessary forsurvival.c. can act as building blocks for large, more complex macromolecules.d. are the simplest form of lipids found in plant cells.e. are structural components of plasma membranes.
all of the following statements regarding lipids are correct EXCEPT for A. lipids contain less energy per unit weight than carbohydrates B. lipids are the body's natural way to store energy long term C. lipids are harder to digest than proteins D. lipids are relatively uncharged E. most lipids cannot be broken down by the body
which of the following are the roles of proteins. select all that apply. - nutrient transport synthesis of molecules - breakdown of molecules - cellular structure - storing information
The following are all examples of inclusion, except? A Glycogen, fats, foreign materials. B Fats, pigments, crystals. C Glycogen, cholesterol, vit Beta. D Water vacuoles, glycogen, pigments.
Which of the following statements is correct? O A. Cholesterol mainly occurs in the cell walls of bacterial cells O B. Cholesterol mainly occurs in the cell walls of mammalian cells O c. Cholesterol mainly occurs in the cell walls of yeast cells O D. Cholesterol mainly occurs in plant cell walls.
All of the following are true about lipids except A. They store more energy than carbohydrates B. They form membranes in the body C. They are hydrophilic D. Contain more hydrogens and carbons in proportion to their oxygens.
What is the structure of micelles? The polar head groups of proteins are inside the micelle and the carbon chains are outside. O Globular structure formed by small proteins in aqueous solution. The polar head groups of fatty acids are outside the micelle and the carbon chains are inside. Phospholipids are inside and cholesterol is outside of the micelle. Bile salts are inside the micelle and the carbon chains are enclosed outside.
Milk forms cottage cheese when: a. the triglycerides in milk are lyophilized to fatty acids and glycerol by amylose b. probiotic bacteria ferment lactose sugar to lactic acid c. the pH is lowered below pH 4.6 d. the salt bridges stabilizing the functional 3-dimensional structure of casein proteins are disrupted e. sunflower oil is emulsified by the lecithin in egg white albumen
Which of the following functions is NOT or cannot be performed by lipids? They can serve as chemical messengers. They can help in the selective permeability of membranes. They can form pores for the thermodynamically favored passage of ions across membranes. They can bind to DNA response elements to control gene expression.
Dixie Bee wanted to make JELL-O shots for her next party, but felt guilty about encouraging her guests to consume alcohol. She tried to compensate for the toxicity of the alcohol by adding pieces of healthy fresh pineapple to the shots, but when she did, the JELL-O never solidified. What happened? Hint: JELL-O is mainly sugar and a gelatinous mixture of proteins.