Biology, 02.08.2019 22:10 jroy1973

Which of the following statements about lipids and carbohydrates is true?
a. they are both made from carbon, hydrogen, and oxygen, but lipids have less oxygen.
b. they are both made from carbon, hydrogen, and oxygen, but carbohydrates have less oxygen.
c. they are both made from carbon, hydrogen, and oxygen, but lipids have less hydrogen.
d. only carbohydrates are made from carbon, hydrogen, and oxygen, lipids have no oxygen.

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Answer from: damiangibson2

Lipids and carbohydrates are both made from carbon, hydrogen, and oxygen, but lipids have less oxygen (Option B)

Carbohydrates are biomolecules composed of carbon (C), hydrogen (H), and oxygen (O) in a 1:2:1 ratio, respectively.Carbohydrates can be divided regarding the number of monomers in the biomolecule into monosaccharides, disaccharides, and polysaccharides. Lipids are also composed of C, H and O, but the ratio is less for O compared to carbohydrates. In consequence, in lipids, the C:H:O ratio is 1:2:less than one (1).Lipids can be classified into two types: nonsaponifiable lipid (do not contain fatty acids), and saponifiable lipids (contain fatty acids).In conclusion, both lipids and carbohydrates are composed of C, H and O, but lipids have less O.

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Answer from: daisylaloca

Both A and C are true

Explanation:

O:C ratio

The formula for a typical triglyceride lipid might be C₅₅H₉₈O₆. The ratio of O:C = 6: 55 or about 1:9.

The formula for a typical carbohydrate like glucose is C₆H₁₂O₆. The ratio of O:C = 6:6 or 9:9.

Thus, on a per carbon basis, carbohydrates have about nine time as much oxygen as lipids.

A is TRUE and

B is false.

H:C Ratio

In lipids, the ratio of H:C = 98:55 or about 16:9.

In carbohydrates, the ratio of H:C = 2:1 or 18:9.

This means that lipids contain less hydrogen than carbohydrates.

Carbohydrates are usually saturated, although they contain rings. Triglycerides contain three unsaturated carbonyl groups plus unsaturated C=C double bonds in fatty acids like oleic, linoleic, linolenic, and arachidonic acid.

C is TRUE.

D is false. Lipids are esters of glycerol, so they contain oxygen.

Answer from: Quest

thats not even an aswer choice

Answer from: Quest

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Which of the following statements about lipids and carbohydrates is true?
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