Endocrine Glands

Q.

Name the hormone secreted by hypothalamus gland ?

Q.

How does our body respond when adrenaline is secreted into the blood?

Q.

(a) Write the names of five endocrine glands found in the human body. Name the hormones secreted by each gland.

(b) How do hormones reach the organs they control?

(c) Name the gland which controls the secretion of hormones from the pituitary.

(d) How does our body respond when adrenaline is secreted in large amounts into the blood?

(e) Name the disease which occurs in adults due to the deficiency of iodine in the diet. What is the main symptom of this disease?

Q. What is the full form of ADH?

Q.

Write any two characteristics of hormones.

Q. Which of the following pairs of substances are concerned with chemical communication between cells?

1. Pepsin and Aldosterone
2. Adrenaline and Insulin
3. Cortisol and Mucus
4. Aldosterone and Saliva

Q.

Hormones are transported from the place of origin to the target cells through the ______.

1. ducts

2. nerves

3. blood

4. lymph

Q.

Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human beings?

1. Adrenaline

2. Thyroxin

3. Insulin

4. Estradiol

Q.

Select the correct matching of a hormone, its source and function.

1. Norepinephrine – Adrenal medulla – Increases heartbeat, rate of respiration and alertness

2. Vasopressin – Posterior pituitary – Increases loss of water through urine

3. Prolactin – Posterior pituitary – Regulates growth of mammary glands and milk formation in females

4. Glucagon – Beta­ cells of Islets of Langerhans – Stimulates glycogenolysis

Q. Differentiate between dwarfism and gigantism. [2 MARKS]

Q.

Which of the following are not an endocrine gland?

1. Pituitary gland

2. Salivary gland

3. Thyroid gland

4. Adrenal gland

Q.

What are the characteristic features of endocrine glands?

1. They are ductless

2. They are highly vascularized

3. All of these

4. They possess intracellular vacuoles that store the hormones

Q.

The more effectiveness of chemical communication than by electrical impulses is due to:

1. Chemicals or hormones travel slower than electric impulses.

2. Electric impulses cannot reach all the cells like chemicals which can easily diffuse to all cells.

3. Electrical impulses require more ion input than chemicals.

4. All of these.

Q.

Where is the hunger centre located in the human brain?

Q. Name the disease caused by the deficiency of thyroxine hormone in the body.

Q.

Compare the nervous system and endocrine system (hormonal system) for control and coordination in humans.

Q.

Choose the odd one out from each series

(a) The glands - thyroid, adrenal, pituitary, prostate...........................

(b) The conditions - cretinism, myxoedema, goitre, scurvy....................

(c) The hormones - insulin, glucagon, cretinism, thyroxine......................

(d) The hormonal sources - adrenal cortex, adrenal medulla, cortisone, pituitary...............................

Q. The reddish brown coloured gland situated in the upper part of the abdomen on the right side of the human body is ‘X’ and its secretion is called ‘Y’.

Here, ‘X’ and ‘Y’ respectively are

मानव शरीर के दाहिनी ओर उदर के ऊपरी भाग में स्थित गहरे लाल-भूरे रंग की ग्रंथि को ‘X’ कहते हैं तथा इसका स्त्रवण ‘Y’ कहलाता है।

यहाँ, ‘X’ तथा ‘Y’ क्रमशः हैं

1. Stomach and gastric juice
   
   आमाशय और जठर रस
2. Pancreas and pancreatic juice
   
   अग्न्याशय और अग्न्याशयी रस
3. Small intestine and intestinal juice
   
   क्षुद्रांत्र और आंत्र रस
4. Liver and bile juice
   
   यकृत और पित्त रस

Q.

Question 36
Label the endocrine glands in the figure

Q.

The examples of ductless glands are?

1. Testes

2. Pancreas

3. Thyroid gland

4. Pineal gland

Q.

The smallest endocrine gland is

1. Thyroid

2. Parathyroid

3. Pituitary

4. Adrenal

Q.

How do endocrine glands differ from other glands ?

Q.

Name one gland each :

(a) which acts only as an endocrine gland.

(b) which acts only as an exocrine gland.

(c) which acts both as an endocrine gland as well as an exocrine gland.

Q.

Differentiate between chemical and nervous coordination with detailed explanation.....

Q. Which among the following endocrine glands is known as 'master gland'?

1. Hypothalamus
2. Adrenal
3. Pituitary
4. Pancreas

Q.

The basic difference between endocrine and exocrine glands is______________.

1. Exocrine glands are without ducts and endocrine glands are with ducts.

2. Endocrine glands are without ducts and exocrine glands are with ducts.

3. Both exocrine and endocrine glands are ductless.

4. Both exocrine and endocrine glands are with ducts.

Q.

Name the hormone released by the pituitary gland which helps in growth of the body.

1. Thyroxin

2. Pituitorxin

3. Growth hormone

4. Adrenaline

Q.

What is the name of in-built 'arrangement' in our body which controls the timing and amount of hormones released by various endocrine glands in the body?

Q. Regarding chemical nature of hormones, which of the following is/are peptide(s)?

1. Adrenaline
2. Progesterone only
3. Insulin only
4. Both Progesterone and Insulin

Q.

(a) Name the hormones secreted by the following endocrine glands :

(i) Thyroid gland (ii) Parathyroid (iii) Pancreas (iv) Adrenal glands

(b) Write the functions of testosterone and oestrogen hormones.