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2 years ago

Glucose, a monosaccharide, is found in three different polysaccharides: starch, glycogen, chitin. There are differences between

Biology

2 answers:

alina1380 [7]2 years ago

7 0

Answer:

b) glucose molecules are joined in long branched chains to make glycogen that allows for long term energy storage in animals

Explanation:

Glucose is a monosaccharide which is used for instant source of energy. Whenever there is excess glucose in the body, it is stored in the body for future use in the form of glycogen molecules. Glycogen is a long branched chain polysaccharide which is formed by joining the monomeric glucose units through glycosidic linkage. Glycogen has α--1,4 & α--1,6 glycosidic linkage.

Option A is somewhat correct but the reason for not choosing option A is because starch exists in 2 forms which are amylose and amylopectin. Although amylose is helical and unbranched yet amylopectin is a branched polymer. In the option it is not given anywhere that starch is a branched polymer.

lorasvet [3.4K]2 years ago

6 0

Answer: A) Glucose molecules are joined in a long chain to make starch that is easily digested for energy.

Explanation: Cellulose is a structural carbohydrate, not easily digested.

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Read 2 more answers

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Anni [7]

Hi there!

Electronegativity is the concept of how likely an atom is to attract the shared molecules in one of these bonds to itself. We know the molecule water is made up of two hydrogens and one oxygen. The electronegativity of hydrogen is 2.2, and oxygen 3.4. An ionic bond needs at least a difference in electronegativity of 1.6. As the difference is less than that, we can say that water is a covalent molecule. This then wipes out choice B, because it is not ionic, and C, as we have seen it is actually covalent.

Now, we can see the difference in electronegativity between oxygen and hydrogen is still 1.2. This means that while it is not at the point for there to be an ionic bond, there is still a difference in attraction, where the electrons will tend to favor the oxygen more and 'hang around it' more. As electrons are negatively charged, this means that the oxygen will gain a slightly negative charge. This then makes the molecule polar, because it now has a charge within the molecule. This means we have our answer, choice D.

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Hope this helps! Feel free to ask me any other questions you have about this specific problem.

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