The reason why microfilament is a polar, whereas a filament of keratin is not. Concept introduction: Actin, a major cellular protein predominantly makes up the microfilaments. Thread-like protein fibers of 3-6 nm in diameter are called as microfilaments . They are contractile in nature. Keratin is a structural protein and is fibrous. Keratin is part of the intermediate filaments. Supercoiled filaments which are of 10 nm in diameter are called as intermediate filaments . Intermediate filaments form thicker cables and are made of fibrous proteins.

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 7, Problem 29CQ

Summary Introduction

To explain: The reason why microfilament is a polar, whereas a filament of keratin is not.

Concept introduction: Actin, a major cellular protein predominantly makes up the microfilaments. Thread-like protein fibers of 3-6 nm in diameter are called as microfilaments. They are contractile in nature. Keratin is a structural protein and is fibrous. Keratin is part of the intermediate filaments. Supercoiled filaments which are of 10 nm in diameter are called as intermediate filaments. Intermediate filaments form thicker cables and are made of fibrous proteins.

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Draw the predominant form of glutamic acid at pH = 8.4. The pKa of the side chain is 4.1. Include proper stereochemistry. HO H2N OH pH = 8.4

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 7, Problem 29CQ

Summary Introduction

To explain: The reason why microfilament is a polar, whereas a filament of keratin is not.

Concept introduction: Actin, a major cellular protein predominantly makes up the microfilaments. Thread-like protein fibers of 3-6 nm in diameter are called as microfilaments. They are contractile in nature. Keratin is a structural protein and is fibrous. Keratin is part of the intermediate filaments. Supercoiled filaments which are of 10 nm in diameter are called as intermediate filaments. Intermediate filaments form thicker cables and are made of fibrous proteins.

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Answer 3

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 7, Problem 29CQ

Summary Introduction

To explain: The reason why microfilament is a polar, whereas a filament of keratin is not.

Concept introduction: Actin, a major cellular protein predominantly makes up the microfilaments. Thread-like protein fibers of 3-6 nm in diameter are called as microfilaments. They are contractile in nature. Keratin is a structural protein and is fibrous. Keratin is part of the intermediate filaments. Supercoiled filaments which are of 10 nm in diameter are called as intermediate filaments. Intermediate filaments form thicker cables and are made of fibrous proteins.

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Answer 4

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 7, Problem 29CQ

Summary Introduction