Explanation Justify reasons for the correct statement: Thyroxine regulates the rate of metabolism, synthesized by the thyroid gland. It stimulates apoptosis in amphibian during metamorphosis, involved in resorption of the tadpole’s tail. Also involved in nervous system transformation. Option (b) is given as “Thyroxine inhibits metabolic processes” Thyroxine regulates the rate of metabolism. Hence, option b) is correct. Justify reasons for the incorrect statements: Option (a) is given as “oxytocin-stimulates uterine contractions during childbirth” Oxytocin stimulates contraction of the uterus during childbirth and also induces mammary gland contraction for milk secretion; hence it is a wrong answer...

10th Edition

ISBN: 9780321775658

Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson

Publisher: PEARSON

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Question

Chapter 45, Problem 4TYU

Summary Introduction

Introduction:

Endocrine cells secrete hormones into the extracellular fluids, which are the signaling molecules. The secreted hormones reach target cells through the bloodstream. Hormones bind only to specific cells based on the corresponding receptors and they act through chemical signals. They maintain homeostasis and regulate growth, development, blood pressure, metabolism and fluid concentration in the body.

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Chapter 45, Problem 3TYU

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Chapter 45 Solutions

Campbell Biology (10th Edition)

Ch. 45.1 - How do response mechanisms in target cells differ...Ch. 45.1 - Prob. 2CC Ch. 45.1 - Prob. 3CC Ch. 45.2 - What are the roles of oxytocin and prolactin in...Ch. 45.2 - How do the two fused glands of the pituitary gland...Ch. 45.2 - WHAT IF? 2192 Propose an explanation for why...Ch. 45.2 - what if? Lab tests of two patients, each...Ch. 45.3 - If a hormone pathway produces a transient response...Ch. 45.3 - Prob. 2CC Ch. 45.3 - Prob. 3CC

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Solution Summary: The author explains that endocrine cells secrete hormones into the extracellular fluids, which are the signaling molecules. They maintain homeostasis and regulate growth, development, blood pressure, metabolism, and fluid concentration

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