CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set 02

Biology Objective Questions and Answers: Chapter 19 Chemical Coordination and Integration

Access targeted multiple-choice questions for Chapter 19 Chemical Coordination and Integration designed to align with the latest CBSE academic syllabus for Class 11 Biology. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.

Download Chapter 19 Chemical Coordination and Integration MCQs with Answers

View or download the dedicated Chapter 19 Chemical Coordination and Integration MCQ resource below. Practicing these 50 objective questions regularly builds familiarity with standard exam patterns and helps secure higher marks in final Biology evaluations.

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

Free study material for Biology

Chapter 19 Chemical Coordination and Integration Objective Questions & Solutions for Class 11 Biology

Class 11 Biology Chapter 19 Chemical Coordination and Integration Objective Test Questions

Explore reliable practice questions for Chapter 19 Chemical Coordination and Integration tailored for Class 11 Biology learners. Use these multiple-choice formats to evaluate preparedness and strengthen problem-solving skills.

NCERT-Aligned Objective Questions and Solutions

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FAQs

Where can I access latest CBSE Class 11 Biology Chemical Coordination and Integration MCQs Set 02?

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

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