Biology
Biology
10th Edition
ISBN: 9780073383071
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
bartleby

Videos

Textbook Question
Book Icon
Chapter 45, Problem 1U

Which of the following best describes hormones?

a. Hormones are relatively unstable and work only in the area adjacent to the gland that produced them.

b. Hormones are long-lasting chemicals released from glands.

c. All hormones are lipid-soluble.

d. Hormones are chemical messengers that are released into the environment.

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

Human body has four types of mechanisms for cell communication, which includes the endocrine signaling and direct contact. The communication within the cells controls various activities of the body.

Answer to Problem 1U

Correct answer:

Hormones are the long lasting chemicals secreted by the endocrine glands. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

Hormones are the chemicals, which regulates several functions of the body. They are secreted in the extracellular fluid by the endocrine glands, and the blood carries them to the site of action. Hormones perform their action at a distance from where they were secreted.

Option b. is given as "Hormones are long-lasting chemicals released from glands".

As, “the hormones are secreted by the endocrine glands which remains in the blood for long, and they regulate the function of various parts of the body from a distance”, is the right answer.

Hence, option b. is correct.

Reasons for the incorrect statements:

Option a. is given as “Hormones are relatively unstable and work only in the area adjacent to the gland that produced them”.

Hormones perform their action away from the site, from where they are secreted. They perform regulatory functions at a distance from their source. So, it is a wrong answer.

Option c. is given as “All hormones are lipid soluble”.

Certain types of hormones are lipid soluble and certain types of hormones are water soluble. So, it is a wrong answer.

Option d. is given as “Hormones are chemical messengers that are released into the environment.”

Hormones are released into the blood by the endocrine glands. So, it is a wrong answer.

Hence, options a., c., and d. are incorrect.

Conclusion

Hormones are the chemicals released from the glands, which remains for long in the circulatory system.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
10. Consider the following enzyme and its substrate where the "+" and "-" indicate cations and anions, respectively. Explain which of the following inhibitors could inhibit this enzyme? Which type of inhibitor would it be and why? (Video 5-2) Substrate Enzyme Potential inhibitors
Using Punnett Squares Punnett squares are one good way to predict the outcome of genetic crosses. Punnett squares use mathematical probability to help predict the genotype and phenotype combinations in genetic crosses. The number of possible alleles from each parent determines the number of rows and columns in the Punnett square. Independent Assortment KEY QUESTION How do alleles segregate when more than one gene is involved? Mendel wondered if the segregation of one pair of alleles affects another pair. For example, does the gene that determines the shape of a seed affect the gene for seed color? This type of experiment is known as a two-factor, or dihybrid, cross because it involves two different genes. Single-gene crosses are monohybrid crosses. Visual Reading Tool: Two-Factor Cross: F₂ The Punnett square shows the results of self-crossing the F, generation of a cross between round yellow peas and wrinkled green peas. 1. List the different genotypes in the F, generation. What is the…
CHAPTER 12 LESSON 2 Applying Mendel's Principles READING TOOL Connect to Visuals Before you read, preview Figure 12-7. Try to infer the purpose of this diagram. As you read, compare your inference to the text. After you read, revise your statement if needed or write a new one about the diagram's purpose. Take notes on the lines provided. Then view the Punnett square and answer the questions below regarding the genotypes and phenotypes. Inference: Revision: Parent 2 rryy Gametes F ry Parent 1 RRYY Gametes RY RrYy The F, generation are all RrYy. 1. What is the phenotype of parent 1?. 2. What is the genotype of parent 1? 3. What is the phenotype of parent 2? 4. What is the genotype of parent 2? 5. What is the phenotype of the F, offspring?. 6. What is the genotype of the F, offspring?. 7. What kind of cross does this figure describe? 144 Chanter 12 Introduction to Genetice Copyright Pearson Education Inc. or its affiliator. All rights reserved.
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License