Question 21.1: Functions of Proteins List the basic functions of proteins.

Functions of Proteins
List the basic functions of proteins.

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The basic functions of proteins can be categorized as follows: Structure, Catalysis, Movement, Transport, Hormone action, Protection, Storage, and Regulation.

Quick Check 21.1
Match the protein with its basic function
1. Erythropoietin, a transcription factor that stimulates red blood cell formation      (a) Structure
2. Casein                                                                                                                                           (b) Catalysis
3. Insulin                                                                                                                                           (c) Movement
4. Collagen                                                                                                                                      (d) Transport
5. Glycogen synthase                                                                                                                    (e) Hormone action
6. Hemoglobin                                                                                                                                (f) Protection
7. Myosin                                                                                                                                           (g) Storage
8. Fibrinogen                                                                                                                                   (h) Regulation

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