Chapter 22 of NCERT Class 11 Biology textbook explains the endocrine glands that are present in the body. To help students revise what they have learned in the chapter, the textbook has a set of questions related to the topic. This is where NCERT Solutions for Class 11 Biology Chapter 22 can be of great help to students.
The Class 11 Biology NCERT Solutions Chapter 22 by Extramarks have answers to all the textbook questions. These are prepared by subject matter experts while ensuring that every answer meets the guidelines given by CBSE.
NCERT Solutions for Class 11 Biology Chapter 22 – Chemical Coordination and integration
Access NCERT Solutions for Class 11 Biology Chapter 22 – Chemical Coordination and Integration
NCERT Solutions For Class 11 Biology Chapter 22
For scoring well, students need to have complete knowledge of concepts explained in every chapter. Apart from this, they must know the right answers to the questions asked in the NCERT Biology textbook. This is the reason that referring to NCERT Solutions for Class 11 Biology Chapter 22 plays an important role in exam preparation. With answers explained with examples and diagrams, NCERT Solutions can make learning easy and more interesting for students.
NCERT Solutions of Class 11 Biology Chapter 22
Class 11 Biology NCERT Chapter 22 explains endocrine glands in our body. Diagrammatic representation of these glands aids students in getting clarity about the location of these glands in the body. This chapter also talks about the hormonal deficiencies in the various parts of the human body along with the mechanism of action of FSH overview given in an in-depth manner.
By referring to Class 11 Biology NCERT Chapter 22 Solutions, students can ace their preparation for the school and competitive exams. Additionally, they will learn the right way to answer a question to avoid any kind of marks deduction during evaluation.
Benefits of Chapter 22 Biology Class 11 NCERT Solutions
Achieving success in examinations is possible with Class 11 Biology NCERT Solutions Chapter 22. Here is how these solutions are beneficial:
- Every answer explains the concept in an in-depth manner. Examples and diagrams are also used, wherever required so that students do not have any doubt related to the answer.
- The solutions are prepared by subject matter experts at Extramarks
- The solutions follow the latest CBSE guidelines.
Related Questions
Release of pancreatic juice is stimulated by:
- A) Enterokinase
- B) Secretin
- C) Trypsinogen
- D) Cholecystokinin
Answer: D) Cholecystokinin
Explanation: The gastrointestinal system has a peptide hormone called Cholecystokinin. This hormone aids in simulating the digestion of protein and fat. It is secreted by the small intestine. This hormone stimulates the secretion of pancreatic juice from the pancreas and plays a part in inciting bile secretion from the gallbladder and pancreas.
The person with Turner’s syndrome has
- A) 45 autosomes and X sex chromosomes
- B) 44 autosomes and XYY sex chromosomes
- C) 45 autosomes and XYY sex chromosomes
- D) 44 autosomes and X sex chromosomes
Answer: D) 44 autosomes and X sex chromosomes
Explanation: Turner Syndrome is caused by the aneuploidy of the X chromosome (complete or partial absence of X Chromosome). A person with Turner Syndrome has a genotype of 44+XO. Only females have this syndrome. They suffer from ovarian insufficiency, limited secondary sexual characters, webbed skin over the neck, short statures, etc. Females with this syndrome have underdeveloped sex organs and are sterile.
A hormone, secreted by the endocrine cells of duodenal mucosa which influences the release of pancreatic juice is
- A) Relaxin
- B) Cholecystokinin
- C) Secretin
- D) Progesterone
Answer: B) Cholecystokinin
Explanation: The mucosa of the small intestine secretes a hormone known as Cholecystokinin Pancreozymin. It stimulates the pancreas to release pancreatic juice and the gallbladder to release bile.
Osmoreceptors are present in-
- A) Hypothalamus
- B) Hypophysis
- C) Epiphysis
- D) Epithalamus
Answer: A) Hypothalamus
Explanation: Osmoreceptors in the anterior hypothalamus’ supraoptic and paraventricular areas are responsible for the detection of changes in the osmolarity of blood plasma. They also aid in the secretion of ADH for the purpose of maintaining balance.
Gastric secretion is stopped by hormone
- A) Enterogastrone
- B) Gastrin
- C) Pancreozymin
- D) Cholecystokinin
Answer: A) Enterogastrone
Explanation: The duodenal mucosa secrets the Enterogastrone hormone. This hormone inhibits gastric secretion.
A condition in which the body’s internal environment remains relatively constant within limits is
- A) Hematoma
- B) Haemopoiesis
- C) Homeostasis
- D) Hemostasis
Answer: C) Homeostasis
Explanation: The maintenance of a state of steady internal conditions (chemical and physical) by living things is known as Homeostasis. This state of internal stability is essential for a living organism to function optimally. Homeostasis includes multiple variables like the fluid balance and body temperature being maintained at certain limits that are preset. The internal body temperature of a human being is the best example.
How does chemical coordination take place in plants?
Chemical coordination occurs in plants through plant hormones. For instance, for growth, the hormone Auxin is responsible while in the fast-growing parts of a plant, cell division is aided by cytokinin.