How are amylose and amylopectin similar to each other, and how are they different from each other?

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Hi, everybody. Our next question says, starch is made up of amylase and Amy, which are similar in structure. What is the difference between amylase and Amycin? And then we have four answer choices which are somewhat long. So rather than read them, talk about it, read them again. Let's talk briefly about these two glucose chains. And then we'll look at the answer choices. So again, both are glucose polymers. A Milos is primarily linear in structure. So just a long straight chain and those linkages between the glucose units are alpha 14 gly acidic bonds. And then Amel Loin has branching points. So this has branches and the branches occur every 20 to 30 glucose units and just like amylase, the linear part of Amy. And so the straight chain part is also alpha 14 glycolytic bonds. And then the branch points occur when you have an alpha 16 gly acidic bond. So with that in mind, let's look at our answer choices. So choice A says Amy los is composed of glucose units connected by alpha 14 glyco linkages. While Amycin is composed primarily of glucose units connected by alpha 14 glyco cytic linkages with branching points formed by alpha 16 glyco linkages. So that will be our answer as it correctly describes the differences there. But to be thorough, we'll go through each of the others. So choice B says Ayo is combined composed primarily of glucose units connected by alpha 14 glyco linkages with branching points formed by alpha 16 glyco linkages. While Amy is composed of glucose units connected by alpha 14 gly acidic linkages. So choice B is incorrect since it flips the two, then choice C says amylase is composed of glucose units connected by alpha 16 gly acidic linkages. While Amy ECT is composed of glucose units connected by alpha 14 gly acidic linkages. So this is incorrect since a alos has alpha 14 glycolytic linkages to give it that linear structure. And then Amycin has alpha 14 gly acidic linkages for the street parts and alpha one six glyco cytic linkages for the branch points. And then finally, if we look at choice D amylase is composed of glucose units connected by alpha 14 glyco linkages. While Amy is composed of glucose units connected by alpha 16 glyco linkages. So here the description of amylase is correct but Amy is not. So it also has alpha one or Glyco linkages for the straight chain parts, but then branch points with alpha one six gly acidic linkages. So that's why twisty is incorrect. So once again, a correct answer here as to the difference between amylase and Amy is choice a Amy los composed of glucose units connected by alpha 14 glyco linkages. While Amy is composed primarily of glucose units connected by alpha 14 Glyco linkages with branching points formed by alpha one sex glyco linkages. See you in the next video.

How are amylose and amylopectin similar to each other, and how are they different from each other?

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Key Concepts

Amylose

Amylopectin

Starch Structure and Function