CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B

Practice CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B provided below. The MCQ Questions for Class 11 Chapter 19 Chemical Coordination and Integration Biology with answers and follow the latest CBSE/ NCERT and KVS patterns. Refer to more Chapter-wise MCQs for CBSE Class 11 Biology and also download more latest study material for all subjects

MCQ for Class 11 Biology Chapter 19 Chemical Coordination and Integration

Class 11 Biology students should review the 50 questions and answers to strengthen understanding of core concepts in Chapter 19 Chemical Coordination and Integration

Chapter 19 Chemical Coordination and Integration MCQ Questions Class 11 Biology with Answers

Question : The hormone which regulates the basal metabolism in our body is secreted from
a) pituitary
b) thyroid
c) adrenal cortex
d) pancreas
Answer : B 

Question : Find out the correct match :-
a) Insulin ? Hyperglycemic effect
b) STH ? Hypoglycemic effect
c) Epinephrine ? Hyperglycemic effect
d) Thyroxine ? Decrease amino acid up take
Answer : C

Question : Diabetes is due to 
a) iodine deficiency
b) hormonal deficiency
c) Na+ deficiency
d) enzyme deficiency

Answer : B

Question : The gonadotropic hormones are produced in 
a) interstitial cells of testes
b) adrenal cortex
c) adenohypophysis of pituitary
d) posterior part of thyroid

Answer : C

Question : The function of oxytocin is to help in
a) growth
b) lactation
c) child birth
d) gametogenesis

Answer : C

Question : Hypothalamic portal system regulates activity of :-
a) Medulla of adrenal gland
b) Pancreatic acini
c) Adenohypophysis
d) Melatonin secreting cells
Answer : C

Question : Melatonin is secreted by 
a) skin
b) thymus
c) pituitary
d) pineal gland

Answer :  D

Question : Melanocyte Stimulating Hormone (MSH) is produced by 
a) anterior pituitary
b) posterior pituitary
c) pars intermedia of pituitary
d) parathyroid

Answer : C

Question : A common scent-producing gland among mammals is 
a) anal gland
b) prostate gland
c) adrenal gland
d) Bartholin’s gland

Answer : A

Question : Gland which is major regulator of metabolism and development process is :-
a) Pituitary gland
b) Thyroid gland
c) Pineal gland
d) Adrenal gland
Answer : B

Question : Acromegaly is caused by 
a) excess of STH
b) excess of thyroxin
c) deficiency of thyroxin
d) excess of adrenalin

Answer : A

Question : Melanin protects from 
a) UV rays
b) visible rays
c) infra-red rays
d) X-rays

Answer : A

Question : Which of the following hormone stimulates breakdown of glycogen and increases blood glucose concentration ?
a) Hormone of b-cell of pancreas
b) Hormone of adrenal medulla
c) Hormone of parathyroid
d) Hormones of pineal gland
Answer : B

Question : Adrenaline directly affects 
a) SA node
b) β-cells of Langerhans
c) dorsal root of spinal cord
d) epithelial cells of stomach

Answer : A

Question : Which steroid is used for transformation ?
a) Cortisol
b) Cholesterol 
c) Testosterone
d) Progesterone

Answer : B

Question : Chemically hormones are 
a) biogenic amines only
b) proteins, steroids and biogenic amines
c) proteins only
d) steroids only

Answer : B

Question : Diurnal rhythms of human body are related with
a) Adrenaline
b) Cortisol
c) Melatonin
d) Thymosin
Answer : D 

Question : Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency ? 
a) Luteinizing hormone — Failure of ovulation
b) Insulin — Diabetes insipidus
c) Thyroxine — Tetany
d) Parathyroid hormone — Diabetes mellitus

Answer : A

Question : Which of the following hormones is not a secretion product of human placenta ? 
a) Human chorionic gonadotropin
b) Prolactin
c) Estrogen
d) Progesterone

Answer : B

Question : Which one of the following hormones is a modified amino acid ? 
a) Epinephrine
b) Progesterone
c) Prostaglandin
d) Estrogen

Answer : A

Question : Storage of iodothyronine occurs into :-
a) Connective tissue band of thyroid gland
b) Inside the thyroid follicular cell
c) In blood stream
d) Extra cellular space of thyroid gland
Answer : D 

Question : A steroid hormone which regulates glucose metabolism is 
a) cortisol
b) corticosterone
c) 11-deoxycorticosterone
d) cortisone

Answer : A

Question : Which of the following is an accumulation and release centre of neurohormones ?
a) Posterior pituitary lobe 
b) Intermediate lobe of the pituitary
c) Hypothalamus
d) Anterior pituitary lobe

Answer : C

Question : Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis ? 
a) ACTH
b) Insulin
c) Adrenalin
d) Glucagon

Answer : C

Question : Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly.
Which hormone initiated this action ?
a) Thyroxin 
b) Adrenalin
c) Glucagon
d) Gastrin

Answer : B

Question : A person is having problems with calcium and phosphorus metabolism in his body.
Which one of the following glands may not be functioning properly ? 
a) Parathyroid
b) Parotid
c) Pancreas
d) Thyroid

Answer : A

Question : Compared to a bull a bullock is docile because of 
a) higher levels of thyroxin
b) higher levels of cortisone
c) lower levels of blood testosterone
d) lower levels of adrenalin/ noradrenalin in its blood

Answer : C

Question : Which one of the following pairs of organs includes only the endocrine glands? 
a) Parathyroid and adrenal
b) Pancreas and parathyroid
c) Thymus and testes
d) Adrenal and ovary

Answer : A 

Question : The blood calcium level is lowered by the deficiency of 
a) parathormone
b) thyroxine
c) calcitonin
d) Both parathormone and calcitonin

Answer : A 

Question : In human adult females, oxytocin 
a) is secreted by anterior pituitary
b) stimulates growth of mammary glands
c) stimulates pituitary to secrete vasopressin
d) causes strong uterine contractions during parturition

Answer :  D 

Question : Injury to adrenal cortex is not likely to affect the secretion of which one of the following?
a) Aldosterone 
b) Both Androstenedione and Dehydroepiandrosterone
c) Adrenaline
d) Cortisol

Answer : C

Question : Which one of the following pairs is incorrectly matched ? 
a) Glucagon - Beta cells (source)
b) Somatostatin - Delta cells (source)
c) Corpus luteum - Relaxin (secretion)
d) Insulin - Diabetes mellitus (disease)

Answer : A 

Question : Toxic agents present in food which interfere with thyroxine synthesis lead to the development of 
a) toxic goitre
b) cretinism
c) simple goitre
d) thyrotoxicosis

Answer : C 

Question : The 24 hour (diurnal) rhythm of our body such the sleep awake cycle is regulated by the hormone 
a) Melatonin
b) Calcitonin
c) Prolactin
d) Adrenaline

Answer : A

Question : Which one of the following hormones is not involved in sugar metabolism ?
a) Glucagon
b) Cortisone
c) Aldosterone
d) Insulin

Answer : C 

Question : Which one of the following hormones though synthesized elsewhere, is stored and released by the master gland ?
a) Melanocyte stimulating hormone
b) Antidiuretic hormone
c) Luteinizing hormone
d) Prolactin

Answer : B

MCQs for Chapter 19 Chemical Coordination and Integration Biology Class 11

Students can use these MCQs for Chapter 19 Chemical Coordination and Integration to quickly test their knowledge of the chapter. These multiple-choice questions have been designed as per the latest syllabus for Class 11 Biology released by CBSE. Our expert teachers suggest that you should practice daily and solving these objective questions of Chapter 19 Chemical Coordination and Integration to understand the important concepts and better marks in your school tests.

Chapter 19 Chemical Coordination and Integration NCERT Based Objective Questions

Our expert teachers have designed these Biology MCQs based on the official NCERT book for Class 11. We have identified all questions from the most important topics that are always asked in exams. After solving these, please compare your choices with our provided answers. For better understanding of Chapter 19 Chemical Coordination and Integration, you should also refer to our NCERT solutions for Class 11 Biology created by our team.

Online Practice and Revision for Chapter 19 Chemical Coordination and Integration Biology

To prepare for your exams you should also take the Class 11 Biology MCQ Test for this chapter on our website. This will help you improve your speed and accuracy and its also free for you. Regular revision of these Biology topics will make you an expert in all important chapters of your course.

Where can I access latest CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B?

You can get most exhaustive CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B for free on StudiesToday.com. These MCQs for Class 11 Biology are updated for the 2025-26 academic session as per CBSE examination standards.

Are Assertion-Reasoning and Case-Study MCQs included in the Biology Class 11 material?

Yes, our CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the CBSE paper is now competency-based.

How do practicing Biology MCQs help in scoring full marks in Class 11 exams?

By solving our CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B, Class 11 students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Biology.

Do you provide answers and explanations for CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B?

Yes, Biology MCQs for Class 11 have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused CBSE exams.

Can I practice these Biology Class 11 MCQs online?

Yes, you can also access online interactive tests for CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set B on StudiesToday.com as they provide instant answers and score to help you track your progress in Biology.