BIOLOGY  VOL. II
BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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
Explain down bellow what happens to the cell: Decreased pH in mitochondria Increased ATP Decreased pH in cytosol Increased hydrolysis Decreasing glycogen and triglycerides Increased MAP kinase activity Poor ion transport → For each one:→ What normally happens?→ What is wrong now?→ How does it mess up the cell?
An 1100 pound equine patient was given 20 mg/kg sucralfate 3 times a day, 2.8 mg/kg famotidine twice a day, and 10mg/kg doxycycline twice a day. Sucralfate comes as a 1 gm tablet, famotidine as 20 mg tablets, and doxycycline as 100mg tablets. All are in bottles of 100 tablets.How many total mg are needed for the patient and how many tablets of each would be needed to provide each dose?How many bottles of each would be needed to have available if this patient were to be on this drug regimen for 5 days?
The patient needs a solution of 2.5% dextrose in Lactated Ringer’s solution to run at 75 ml/hr for at least the next 12hours. LRS comes in fluid bags of 500 ml, 1 Liter, 3 Liters and 5 Liters. How can a 2.5% solution be made by adding50% dextrose to the LRS?
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