Class 11 Biology Chemical Coordination and Integration NCERT Solutions - FREE PDF Download
Updated Chapter 19 Chemical coordination and integration, NCERT Solutions are now available on Vedantu. Our subject experts prepare these solutions, referencing the latest NCERT Class 11 Biology textbook edition. All the important topics and sub-topics, such as endocrine glands, hormones of the heart, kidney, lungs, hormone action, etc., in the Class 11 Biology chapter 19 have been covered in these solutions.
NCERT Solutions Chapter 19 is designed by Vedantu master teachers and is updated according to the latest CBSE Class 11 Biology syllabus. Therefore, students can rely upon these NCERT Solutions to prepare for their exams.
Glance on Class 11 Biology Chapter 19 NCERT Solutions | Vedantu
Boost your exam preparation with chemical coordination and integration class 11 questions and answers.
The chapter consists of the endocrine glands that are present in our body. The chemical coordination and integration class 11 NCERT PDF gives a diagrammatic representation of the endocrine glands easily.
Chemical coordination and integration questions and answers cover the hormonal deficiencies in different parts of the body.
Topics like a detailed overview of the mechanism action of FSH are explained neatly with a Diagram and in a structured way.
Chapter 19 Chemical coordination and integration have explained each question most easily using practical methods.
From NCERT chemical coordination and integration, students will get all the answers to all the questions given in the chapter exercise, which will help them to learn the chapter systematically.
1. Define the following:
(a) Exocrine Gland
Ans: Exocrine glands, such as sebaceous glands, sweat glands, salivary glands, and intestinal glands, secrete their secretions on the surface or into a specific region via ducts in order to conduct a metabolic function.
(b) Endocrine Gland
Ans: The endocrine gland is a unique gland (from the epithelium that forms it) that secretes informational molecules or hormones that are injected into the venous blood or lymph to reach the target organ because there is no duct connecting the gland to the target organ. As a result, endocrine glands, such as the thyroid gland, are sometimes known as ductless glands.
(c) Hormone
Ans: Hormone is a chemical produced by an endocrine gland or a specialized nerve cell and released in very minute amounts into the bloodstream to control the growth or function of a specific tissue organ in a distant area of the body, such as insulin.
2. Diagrammatically Indicates the Location of the Various Endocrine Glands in Our Body.
Ans:
3. List the Hormones Secreted by the Following:
Ans.
4. Fill in the Blanks:
Hormones Target Gland
Hypothalamic hormones ........................
Thyrotrophin (TSH) ........................
Corticotropin (ACH) ........................
Gonadotrophins (LH, FSH) ........................
Melanotropin (MSH) ........................
Ans:
Pituitary
Thyroid
Adrenal cortex
Gonads – Tests in male and ovaries in female
Skin.
5. Write short notes on the functions of the following hormones:
Parathyroid Hormones (PTH)
Ans: Parathyroid hormone raises calcium levels while lowering phosphate levels in the blood.
Thyroid Hormones
Ans: Thyroxine, triiodothyronine, and calcitonin are the three hormones secreted by the thyroid gland. Thyroxine and triiodothyronine regulate the body's overall metabolism, encourage tissue development, and induce tissue differentiation. Calcitonin is a hormone that controls calcium levels in the blood.
Thymosin
Ans: Thymosin is produced by the thymus gland. Cell division is accelerated, T-lymphocyte growth and differentiation are stimulated, and sexual maturity is accelerated.
Androgens
Ans: The testis secretes androgens. They influence male sexual behavior and sex drive by stimulating the development of the male reproductive system, the production of sperm, and the development of male accessory sex characteristics.
Estrogens
Ans: Estrogens are produced by the ovaries. They encourage the female reproductive system to mature and become fully functional, as well as the differentiation of ova and the development of accessory sex characteristics.
Insulin and Glucagon.
Ans: Insulin is produced in the pancreas by the -cells. It reduces blood glucose levels and stimulates protein and fat synthesis. The a-cells of the pancreas produce glucagon. It causes a rise in blood glucose levels.
6. Give an example(s) of
Hyperglycemic Hormone and Hypoglycemic Hormone
Ans: Parathormone (PTH)
Hypercalcemic Hormone
Ans: Glucagon, Insulin
Gonadotrophic Hormones
Ans: Follicle-stimulating hormone (FSH) and Luteinizing hormone (LH)
Progestational Hormone
Ans: Progesterone
Blood Pressure-Lowering Hormone
Ans: Atrial natriuretic factor
Androgens and Estrogens.
Ans: Testosterone and Estradiol.
7. Which Hormonal Deficiency is Responsible for the Following?
Diabetes Mellitus
Ans: Diabetes mellitus is characterized by excessively high blood glucose levels caused by a lack of the hormone insulin.
Goiter
Ans: Goitre is a condition in which the thyroid gland enlarges abnormally owing to a lack of thyroxine hormone in the body.
Cretinism.
Ans: Cretinism is a condition in which a baby's development is slowed owing to a lack of thyroid hormone in the body.
8. Briefly Mention the Mechanism of Action of FSH.
Ans: (Follicle-stimulating hormone) is a glycoprotein that is lipid insoluble and so cannot penetrate target cells. It forms a hormone-receptor complex by binding to particular receptor molecules on the cell membrane's surface. The enzyme adenylate cyclase is released from the receptor site as a result of this combination. From ATP, this enzyme produces cell cyclic adenosine monophosphate (cAMP). The cAMP stimulates the cell's existing enzyme system. The metabolic processes in the cell are accelerated as a result of this. The hormone is referred to as the first messenger, whereas cAMP is referred to as the second messenger. The hormone-receptor complex alters the permeability of the cell membrane to allow items to pass across it more easily. As the cell obtains the required ingredients, its actions grow.
Question 9:
Column I Column II
T4 (i) Hypothalamus
PTH (ii) Thyroid
GnRH (iii) Pituitary
LH (iv) Parathyroid.
Ans:
Class 11 Biology Chemical Coordination And Integration: Quick Overview of Topics Covered
Benefits of Class 11 Biology Chapter 19 - Chemical Coordination and Integration
Some of the benefits of chemical coordination and integration NCERT are:-
Solutions for NCERT Chemical coordination and integration are prepared according to the guidelines and format issued by the CBSE board, thus giving the students a preview of the exam's format.
Description of major endocrine glands, including the pituitary gland, thyroid gland, adrenal glands, pancreas, and gonads, and their respective hormones are the most likely to come in the exams, thus making the more complex concept simpler.
Explanations of how hormones exert their effects on target cells through specific receptors, leading to changes in cellular activities and gene expression, are discussed in the chapter.
The solutions given here are detailed, which gives the students a step-by-step explanation of every concept in the particular chapter.
Important Study Material Links Class 11 Chapter 19
Conclusion
Chapter 19 Chemical Coordination and Integration NCERT provides students with simple and detailed definitions and explanations of each concept covered in the chapter. Therefore, it is highly recommended that students download and refer to our comprehensive and expert-curated chemical coordination and integration class 11 NCERT PDF to get a gist of the chapter before the exam and to know how to answer the questions in the exam. Students can also refer to our plethora of other study resources related to this chapter, which are free on our website.
NCERT Solutions for Class 11 Biology FREE PDF | Other Chapter-wise Links
Below are the other chapter-wise Links for the Solutions for Biology NCERT Class 11.
Related Important Links for Biology Class 11 Biology NCERT Solutions
FAQs on NCERT Solutions for Class 11 Biology Chapter 19 Chemical Coordination and Integration
1. How important is NCERT Exemplar for Class 11 Biology Chapter 19 Chemical coordination and integration class 11 questions and answers?
The title of the topic suggests that it complements another topic. The chapter neural control and coordination is actually complimented by this topic. So not only for the sake of studying this chapter but also to get a clear picture of the entire network inside the human body, the students have to learn this chapter and grow their own concepts. Coordination means the distribution of all important tasks among the network so that every organ can function and run the body machine properly and efficiently.
2. What are the tips to remember for NCERT Chemical coordination and integration?
The topic of Chemical Coordination and Integration is quite important for a NEET aspirant. This chapter is to be well understood with the topic of neural control and coordination. The key points which have to be remembered are as follows:
Human endocrine system
Endocrine glands
Hypothalamus releases two types of hormones- releasing and inhibiting hormones
Pituitary gland
Pineal gland
Thyroid gland
Parathyroid gland
Thymus
Adrenal gland
Pancreas
Testis and Ovary
Hormones of GI tract, kidney, and heart
Chemical nature of hormones
Mechanism of action by hormones
3. How to prepare NCERT Exemplar for Class 11 Biology Chapter 19 (Book Solutions) using Vedantu?
Chapter 19- Chemical Coordination and Integration is important for students of Class 11 and medical competitive aspirants both for their board exams and competitive exams. Students can develop their deep concepts by studying only their NCERT textbook and Vedantu study materials. The textbook helps to understand the topic but to know the nitty-gritty of the topic and develop one’s thorough concept about the topic NCERT exemplar is to be solved and Vedantu provides freely downloadable solutions of NCERT exemplar Chapter 19 Chemical Coordination and integration for the students. Vedantu also provides services to clear any sort of doubts of the students in their customized one-to-one online tuition classes to make the students confident enough about the chapter.
4. How to score well in NEET from Class 11 chapters?
Class 11 chapters are equally important in medical competitive exams as the Class 12 chapters. One has to remember both Class 11 and Class 12 topics and develop deep concepts about them to stand superior from the rest. Properly grown concepts do not need stress to memorize the topics. Hence Class 11 chapters should be sincerely read and understood in a way that the concepts get clear. Students have to keep in touch with Class 11 topics and refer to chemical coordination and integration questions and answers provided by Vedantu.
5. How to use Vedantu for chemical coordination and integration Class 11 NCERT PDF?
Vedantu provides a great platform to bring clarity to your concept for all Biology topics starting from Class 11 onwards. They provide easily downloadable study material for 11 and 12 and the students can download them based on their necessity and course calendar. The students can go through the Class 11 topics as and when they feel like studying them even while preparing their Class 11 chapters. This approach to studying Biology makes them confident for their coming competitive exams like NEET, AIIMS, and other such exams.
6. What is chemical coordination according to Class 11 Chapter 19?
Chemical coordination is brought about by hormones and chemical messengers. To learn more about the concepts related to chemical coordination, students can refer to the Chemical Coordination and Integration Class 11 NCERT PDF.
7. How does chemical coordination take place in human beings?
NCERT chemical coordination and integration explains the process of chemical coordination happens with the help of:
Endocrine Glands
Hormones
Target Organs
8. What is the role of hormones in chemical coordination?
Here’s a breakdown of key functions:
Targeted communication
Long-distance communication
Regulation and control
Diverse physiological effects
9. Why is chemical coordination necessary in multicellular organisms?
The process is necessary for several reasons:
Communication across distances
Integrated functioning
Regulation and control
Complexity of responses
Long-term effects
10. What are the organs involved in coordination?
The major organs involved in coordination are the nervous system and the endocrine system. Students can refer to chemical coordination and integration questions and answers and chemical coordination and integration NCERT PDF to learn more about biology Chapter 19 of Class 11.
