FRANK Solutions for Class 10 Biology Chapter 10 - Endocrine System
Biology is one of the crucial subjects in ICSE Class 10. ICSE Class 10 Biology speaks about the cell as the basic unit of life, genes, and evolution and deals with how living organisms interact with the environment, including the behavior of living beings. TopperLearning is one of the premier online platforms which helps students of ICSE Class 10 to study various concepts in Biology.
Chapter 10 - Endocrine System Exercise 128
(i) Gland secreting growth hormone
(ii) Growth hormone
(iii) Hormone regulating metamorphosis
(iv) Gland secreting insulin
(v) The largest endocrine gland
(vi) Gland secreting adrenaline
(vii) Anterior lobe of pituitary
(viii) Posterior lobe of pituitary
(ix) The hormone that controls the basal metabolic rate
(vi) Adrenal gland
(i) Somatotrophic hormone
(ii) Thyroid stimulating hormone
(iii) Adrenocorticotrophic hormone
(iv) Gonadotrophic hormone
(v) Insulin hormone
(vi) Corpus luteum
(vii) Glucagon hormone
(ii) Thyroid stimulating hormone - It stimulates the activity as well as the growth of thyroid glands.
(iii) Adrenocorticotrophic hormone - It stimulates the activity of adrenal cortex.
(iv) Gonadotrophic hormone - It promotes the growth of ovarian follicles in females and the growth of sperms in males.
(v) Insulin hormone - It lowers the blood sugar level.
(vi) Corpus luteum - It secretes progesterone.
(vii) Glucagon hormone - It raises the blood sugar level.
(i) TSH, ACTH, Insulin
(ii) FSH, LH, STH
(iii) Adenohypophysis, Neurohypophysis, Islets of Langerhans
(iv) Insulin, Glucagon, STH
(v) Adrenaline, Noradrenaline, Insulin
(iii) Islets of Langerhans
(i) FSH (ii) LTH
(ii) LTH - Luteotropic hormone
Chapter 10 - Endocrine System Exercise 129
(i) Diabetes mellitus
(ii) Beta cells
(iii) Exophthalmic goiter
(iv) Releasing hormones
(ii) Beta cells - Beta cells are the cells of pancreas that secrete insulin.
(iii) Exophthalmic goitre - The over activity of thyroid gland leads to its enlargement, producing a big swelling in the neck region called exophthalmic goiter.
(iv) Releasing hormones - A substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland.
(i) Goitre (ii) Diabetes mellitus (iii) Gigantism
(iv) Diabetes insipidus (v) Cretinism (vi) Exophthalmic goiter
(i) Anterior pituitary
(iv) Adrenal cortex
(i) Exophthalmic goitre (symptoms and cause).
(ii) Diabetes mellitus (symptoms and cause).
Symptoms are - Enlargement and protrusion of the gland below the chin, increased pulse rate, nervousness and bulging of the eyes.
(ii) Diabetes mellitus - It is caused due to less secretion of the insulin hormone.
Symptoms are - Frequent urination, Sudden weight gain or weight loss, Excessive thirst and hunger.
(ii) Name two hormones secreted by the above mentioned cells.
(iii) Mention one main function of each hormone named above.
(ii) Insulin and glucagon.
(iii) Insulin - It lowers the glucose level in the blood.
Glucagon - It raises the level of glucose in the blood.
(i) Increase in heartbeat
(ii) Maintains glucose level in the blood
(iii) Converting glycogen to glucose
(iv) Regulates basal metabolism
(v) Ossification of bones
(vi) Prepares the body during emergency
(vii) Responsible for normal growth of the whole body
(viii) Regulates the functioning of the male and female reproductive organs
(ix) Increased reabsorption of water in the kidneys
(x) Increased blood supply to muscles.
(vii) Growth stimulating hormone
(viii) Sex corticoids
(ix) Antidiuretic hormone
(x) Non adrenaline
(i) Diabetes is caused due to insulin deficiency.
(ii) Insulin is secreted by thyroid.
(iii) Islets of Langerhans are found in the brain.
(iv) Adrenaline is secreted by pituitary.
(v) The pituitary gland is both exocrine and endocrine in function.
(ii) Endocrine gland
(iii) Exocrine gland
(ii) Endocrine gland - The glands without ducts which secrete hormones are called endocrine glands.
(iii) Exocrine gland - The glands with ducts which secrete enzymes are called exocrine glands.
(iv) Hypothyroidism - It is the under secretion of thyroxine by thyroid gland which leads to retarded growth and mental development in infants.
(v) Hyperglycemia - Increase in blood sugar level is called hyperglycemia.
(vi) Hypersecretion - The over activity of any gland leads to over secretion of hormones called hypersecretion.
(i) Thyroid (ii) Pancreas (iii) Adrenal medulla
Chapter 10 - Endocrine System Exercise 130
(i) Which one of the following is a hormone deficiency disease?
(a) Scurvy (b) Diabetes (c) Cancer (d) Malaria
(ii) Adrenaline is secreted by
(a) thymus (b) adrenal gland (c) islets of Langerhans (d) thyroid
(iii) A gland having endocrine as well as exocrine function is
(a) pituitary (b) adrenal (c) thyroid (d) pancreas
(iv) Excess secretion of growth hormone causes
(a) myxodema (b) gigantism (c) pneumonia (d) goiter
(v) Hormone secreted by islets of Langerhans.
(vi) Which one of the following is not an endrocine gland?
(vii)An organ, tissue or cell where a hormone produces its effects is known as
(d) all the above
(viii) Diabetes mellitus disease is caused due to
(a) over secretion of insulin
(b) over secretion of glucogen
(c) under secretion of insulin
(d) under secretion of both
(ix) Insulin is secreted by
(a) beta cells of pancreas
(b) alpha cells of pancreas
(c) delta cells of pancreas
(d) none of the above
(x) Which hormone produces energy producing effect in the body?
(b) growth hormone
(xi) Corpus luteum produces
(ii) (b) Adrenal gland
(iii) (d) Pancreas
(iv) (b) Gigantism
(v) (a) Insulin
(vi) (b) Liver
(vii) (c) Target
(viii) (c) under secretion of insulin
(ix) (a) beta cells of pancreas
(x) (d) glucagon
(xi) (c) progesterone
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