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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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The main protein in bones is _______.

  1. a. actin
  2. b. myosin
  3. c. collagen
  4. d. calcium

Summary Introduction

Introduction: Bones are the specialized connective tissues that surround the living cells.  An adult consists of 206 bones in their body. There are mainly two types of bone tissues: spongy bone and compact bone. The main functions of bone are storage of minerals, aiding in the movement, to protect the organs, and for producing the blood cells through red marrow.

Explanation

Reason for the correct answer:

A specialized connective tissue called bone contains living cells called bone cells that are present in an extracellular matrix. This matrix consists of proteins mainly collagen and it is hardened by phosphorus and calcium.

Option c. is given as “collagen”.

Bones are specialized connective tissues that surround the living cells by a collagen- rich matrix hardened by phosphorus and calcium.

Hence, the correct answer is option c.

Reasons for the incorrect answers:

Option a. is given as “actin”.

Actin is a type of globular protein, which is present mostly in the skeletal muscles of eukaryotes. It helps to form the microfilaments. Therefore, actin is not a main protein in bones...

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