Question
Can you relate the structure of proteins to properties of a variety of proteins? Globular and fibrous proteins
Answer
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(258 Votes)
Irving
Elite · Tutor for 8 years
Answer
The property of proteins being easily denatured belongs to Globular Proteins. Fibrous proteins are characterized by their resistances, physical supports and formations which are constitutive parts to many organs.
Explanation
Sure, proteins are an essential class of biomolecules in our bodies, identified by their large and complex array of structures which influence their functions. These proteins depict two primary structural classifications - globular proteins and fibrous proteins. We can majorly distinguish the two based on differences in structures and functions, which in turn also differentiate their properties. Let's examine each class.1. Globular proteins: These types of proteins form a globular or spherical structure. They are hydrophilic and so, dissolve well in water due to the presence of polar side groups on the outside of the molecule. This unique shape enables them to carry out various functions like catalysis of reactions (enzymes), transportation, defense, and regulation (like hormones). One vital example of this category is hemoglobin, a transport protein that carries oxygen from lungs to our body's cells. These proteins can be vulnerable to environmental conditions such as heat and PH changes increasingly leading to their denaturation. 2. Fibrous Proteins: Spanning from its essence, fibrous proteins exhibit a structural function. These present a long, fiber-like appearance, are generally insoluble in water, and bear higher tensile strength due to their helical structure linking with strong hydrogen and disulfide bonds. They serve pivotal roles in mechanical support and shape to cells and tissues. Predominant fibrous proteins include collagen in connective tissues, keratin in hair and nails, and elastin in ligaments.From these defining properties, we can discern that while globular proteins are dynamic and versatile in function, they are precarious to modifications in environmental conditions. On the contrary, fibrous proteins exemplify robust mechanical strength and structural integrity while demonstrating relatively lesser functional diversity.Therefore, in response to the provided question, one could say the attribute specific only to globular but not to fibrous proteins is their ability to be easily denatured due to alterations in environment conditions like temperature and PH. Conversely, resistance to heat stress, mechanical stress along with support and formation of several organs are notable features of fibrous proteins.