Explanation:

Unprefer carbohydrates and also proteins, lipids are mostly nonpolar molecules. As a result, they are unable to be dissolved in aqueous remedies, such as blood. This makes them require a lipoprotein in order to be transported via the bloodstream. Without these proteins, lipids would be insoluble in the blood and also cause clots.

You are watching: Gram for gram, which of the following provides the most energy?


Explanation:

Amphipathic molecules have actually both polar and nonpolar sections. For phospholipids, the phosphate area carries a negative charge, making it polar, while the lipid tail is a nonpolar hydrocarbon. Being amphipathic is a crucial characteristic that enables phospholipids to develop the plasma membrane. The polar ends are able to confront the aqueous environment while the nonpolar ends are faced in the direction of each various other. This creates an efficient nonpolar obstacle roughly the cell, while still staying steady by having actually polar regions facing the aqueous atmospheres.


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Example Inquiry #1 : Macromolecules


Which carbohydprice cannot be digested by humans?


Possible Answers:

Cellulose


Glycogen


Starch


Amylose


Correct answer:

Cellulose


Explanation:

Cellulose is a polysaccharide in which the monomers are linked by a beta affiliation. This affiliation calls for a devoted enzyme that is not uncovered in humans. As a result, people cannot break dvery own cellushed.

Glycogen is offered to store glucose in the body, and can be broken down to release power. Starch is offered to keep glucose in plants, but have the right to also be broken down by people. Amylose is a component of starch.


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Example Question #1 : High School Biology


Which of the following classes of molecules produces the many energy per gram?


Possible Answers:

Fats


Carbohydrates


Nucleic acids


Fibers


Proteins


Correct answer:

Fats


Explanation:

Tright here are 4 classes of biological molecules: fats, carbohydrates, proteins, and nucleic acids. Of these, fats create the most power per gram at a whopping nine calories per gram. Carbohydprices and also proteins produce much less than half of this, at just 4 calories per gram.


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Example Inquiry #2 : High School Biology


Which of the following is not a form of fat in the body?


Possible Answers:

Mono-unsaturated fats


Saturated fats


Unsaturated fats


Di-saturated fats


Trans fats


Correct answer:

Di-saturated fats


Explanation:

Lipids, or fats, are formed from hydrocarbon chains. The carbon atoms attach together and bond to hydrogen to fill their orbitals. When all the bonds in the molecule are single bonds, the lipid is saturated. Tbelow is no such point as a "di-saturated fat."

When tright here is a single double bond in the chain, the lipid is mono-unsaturated. When tright here are multiple double bonds in the chain, the lipid is unsaturated. Trans fats have actually a twin bond via the nearby hydrogen atoms on oppowebsite sides of the carbon chain, preserving a straight structure.

Many fats in the body are triglycerides. Their major function is permanent energy storage.


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Example Concern #1 : Macromolecules


Which of the adhering to is a carbohydrate?


Possible Answers:

Ribose


Cholesterol


Triglyceride


Insulin


Helicase


Correct answer:

Ribose


Explanation:

Carbohydrates are recognized as sugars or saccharides. Virtually all carbohydprices end in the sufsolve "-ose," making them easy to identify. Ribose is a five-carbon sugar uncovered in RNA. Some other prevalent carbohydrates incorporate deoxyribose, glucose, cellushed, and also lactose. Sucrose is the technical name of table sugar, which is also a carbohydrate.

The various other classes of molecules are fats, proteins, and also nucleic acids. Fats, or lipids, have the right to be additionally broken down right into various other categories, such as sterols and glycerolipids. Sterol lipids mostly have actually the sufsolve "-ol" and also encompass cholesterol and estradiol (estrogen). Glycerolipids incorporate triglycerides. Proteins are developed from amino acids. Enzymes are a class of protein and mainly have the sufresolve "-ase," such as helicase. Other proteins regularly have the suffix "-in" or "-en," such as insulin.


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Example Question #1 : Macromolecules


Which of the adhering to are true concerning lipids?


Possible Answers:

Lipids are hydrophilic


Lipids have the right to only be triglycerides


Lipids carry out not save energy


Lipids are soluble in water


Lipids are soluble in nonpolar solvents


Correct answer:

Lipids are soluble in nonpolar solvents


Explanation:

Lipids are hydrophobic, which means that they are insoluble in water, a polar solvent. Lipids have the right to save abundant power. Lipids contain huge nonpolar areas, which means that they are soluble in nonpolar solvents. Triglycerides are only one form of lipids. Other types encompass, however are not restricted to: monoglycerides, diglycerides, phospholipids, and fatty acids.

See more: Which Aspect Of Gothic Literature Do The First Four Chapters Of Frankenstein Most Clearly Show?


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Example Inquiry #1 : Understanding Lipids And Carbohydrates


What is the distinction in between saturated and unsaturated fatty acids?

I. Saturated fatty acids carry out not contain double bonds, unsaturated fatty acids contain at leastern one double bond

II. Saturated fatty acids contain at leastern one double bond, unsaturated fatty acids do not contain double bonds

III. Saturated fatty acids contain the maximum amount of H atoms on their carbon skeletons

IV. Unsaturated fatty acids contain the maximum amount of H atoms on their carbon skeletons


Possible Answers:

III only


I only


II only


II and also IV


I and III


Correct answer:

I and also III


Explanation:

Saturated fatty acids perform not have double bonds between carbon atoms. Because of this, the maximum amount of hydrogen atoms are bonded to the carbon skeleton chain. Saturated fatty acids are solid at room temperature, like butter. Unsaturated fatty acids have at lease one double bond. These double bonds create kinks in the carbon skeleton, staying clear of hydrogen atoms from packing onto the skeleton. Unsaturated fatty acids are therefore more fluid and are liquid at room temperature, choose oil and natural peanut butter. 


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Example Question #9 : Macromolecules


What is true of both lipids and fats?

I. Both are macromolecules

II. Both are hydrophobic

III. Fats are written of glycerol and also fatty acids

IV. Lipids are written of glycerol and fatty acids

V. Fats are organized together using ester linkage


Possible Answers:

I, II, IV, and also V


I, II, and also V


I and II


II, III, and also V


I, III, and IV


Correct answer:

II, III, and V


Explanation:

Due to the fact that lipids execute not encompass true polymers, they are not huge sufficient to be taken into consideration macromolecules. However, like fats, lipids are hydrophobic. Fats are taken into consideration macromolecules and are created of glycerol and fatty acid molecules. The glycerol and fatty acid molecules are joined using an ester link, which is developed by a dehydration reaction.


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Example Concern #1 : High School Biology


What sugar molecule does ATP contain?


Possible Answers:

Adenine


Adenosine


Deoxyribose


Triphosphate


Ribose


Correct answer:

Ribose


Explanation:

ATP stands for adenosine triphosphate. Ribose is the five-carbon sugar, which is bonded to a phosphate team and adenine team in a molecule of ATP. 


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