Identify the gland indicated in the picture and answer the following questions : Name the hormone produced by the part indicated as (i) which slows down the action of defense cells.

The part indicated by (i) is the adrenal cortex. This structure releases cortisol that slows down the action of defense cells. This steroid hormone regulates many vital processes of the body, including the immune response and metabolism.

Identify the gland indicated in the picture and answer the following questions : Name the two hormones produced by the part indicated as (ii). Give their functions.

The part indicated as (ii) is the adrenal medulla. This structure secretes adrenaline and noradrenaline. This hormone is released during the stress condition. This hormone increases heart rate, pulse rate, cardiac output, and blood pressure and raises the blood levels of glucose and lipids. Adrenaline and noradrenaline also serve as stimulators of excitatory neurotransmitters in the sympathetic nervous system. These hormones are released during fight and flight conditions in the body of an individual.

Identify the gland indicated in the picture and answer the following questions : Write two important functions of aldosterone.

Aldosterone can be characterised as the main mineralocorticoid steroid produced by the zona glomerulosa of the cortex within the adrenal gland. The two important functions of this hormone are given below: It helps to control the blood pressure or helps in blood pressure regulation It also helps with osmoregulation, which is the process of regulating the amounts of water and mineral salts in the blood

Select suitable items from the box and complete the table related to hormone defects. Gland Hormone Defect Symptom Pancreas __(i)__ Diabetes __(ii)__ Hypothalamus Vasopressin __(iii)__ __(iv)__ Pituitary __(v)__ __(vi)__ Growth of the bones on the face and jaw Somatotropin Diabetes insipidus Acromegaly Presence of glucose in urine Frequent urination Insulin Hindrance in proper physical and mental development

Insulin plays an essential role in the regulation of the blood sugar level in the body of a human. This hormone is secreted from the beta cells of islets of Langerhans of the pancreas. This hormone converts glucose into glycogen and stores it in liver and muscle cells. The defect of this hormone causes diabetes Mellitus in the body of an individual, In this disease, there is the presence of glucose in the urine is observed. Vasopressin plays an essential role in the maintenance of the osmolarity in the body of a human. This hormone is released from the posterior pituitary under the influence of the hypothalamus. It helps in the absorption of water in the distal convoluted tubule and collecting duct of the renal tubule. The defect of this hormone causes diabetes insipidus in the body of an individual. It causes frequent urination. Somatotropin is also known as the growth hormone. This hormone is released from the anterior pituitary. The defect of this hormone causes acromegaly in the body of an individual. The abnormal growth of the bones on the face and jaw is observed in this disease. Growth hormone is a peptide hormone. Gland Hormone Defect Symptom Pancreas Insulin Diabetes Presence of glucose in urine Hypothalamus Vasopressin Diabetes insipidus Frequent urination Pituitary Somatotropin Acromegaly Growth of the bones on the face and jaw

Analyse the given symptoms and identify the disease. Low metabolic rate Hypertension Inflammation in tissues

Myxoedema occurs due to a deficiency of thyroxine in adults. The person has a low metabolic rate, low body temperature, reduced heart rate, pulse rate, hypertension, inflammation in tissues, and lower cardiac output. The given symptoms indicate the myxoedema condition in the body of an individual.

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Important Questions on Chemical Messages for Homeostasis

MEDIUM

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

The pituitary gland is called master gland, why?

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Identify the gland indicated in the picture and answer the following questions :

Question Image

Name the hormone produced by the part indicated as (i) which slows down the action of defense cells.

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Identify the gland indicated in the picture and answer the following questions :

Question Image

Name the two hormones produced by the part indicated as (ii). Give their functions.

MEDIUM

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Write names of parts of the human brain and one function of each part.

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Certain hormones released from the anterior lobe of pituitary gland are given.
Thyroid Stimulating Hormone (TSH)
Adreno Cortico Tropic Hormone (ACTH)
Gonado Tropic Hormone (GTH)

Write one function of ACTH and TSH.

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

_____ gland present in our brain that controls hormonal secretions of several other glands in our body.

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Identify the gland indicated in the picture and answer the following questions :

Question Image

Write two important functions of aldosterone.

MEDIUM

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Select suitable items from the box and complete the table related to hormone defects.

Gland	Hormone	Defect	Symptom
Pancreas	__(i)__	Diabetes	__(ii)__
Hypothalamus	Vasopressin	__(iii)__	__(iv)__
Pituitary	__(v)__	__(vi)__	Growth of the bones on the face and jaw

Somatotropin
Diabetes insipidus
Acromegaly
Presence of glucose in urine
Frequent urination
Insulin
Hindrance in proper physical and mental development

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

There are certain mistakes in the given chart. Find out and correct it.

Question Image

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Analyse the given symptoms and identify the disease.

Low metabolic rate
Hypertension
Inflammation in tissues

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Certain hormones released from the anterior lobe of pituitary gland are given.
Thyroid Stimulating Hormone (TSH)
Adreno Cortico Tropic Hormone (ACTH)
Gonado Tropic Hormone (GTH)

Name two hormones secreted by the action of GTH.

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Certain hormones released from the anterior lobe of pituitary gland are given.
Thyroid Stimulating Hormone (TSH)
Adreno Cortico Tropic Hormone (ACTH)
Gonado Tropic Hormone (GTH)

Write the common feature of these hormones.

MEDIUM

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Why is the use of iodised salt advisable?

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Explain why goitre is usually observed in people living in hilly regions.

MEDIUM

Science>Biology>Chemical Messages for Homeostasis>Endocrine System

Endocrine glands of male human being.

EASY

Science>Biology>Chemical Messages for Homeostasis>Endocrine System