Tag: glands in humans

Questions Related to glands in humans

Salivary glands are example of 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Exocrine gland

  2. Endocrine gland

  3. Both of the above

  4. All of the above

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Correct Option: A

Proprioreceptors are found in

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Sole of feet

  2. Adrenal cortex

  3. Hypothalamus

  4. Medulla

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Correct Option: A
Explanation:
Proprioreceptors are the receptors sensitive to internal stimuli. The stimulus is received within the body. These respond to position and movement. They are considered as sixth sense of body. Such receptors can be found in sole of feet as they respond to change in position of body.
So, the correct answer is 'Sole of feet'.

Integration system in the body is 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Nervous system

  2. Endocrine system

  3. Circulatory system

  4. Nervous and Endocrine system

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Correct Option: D
Explanation:

  • Nervous system is a coordinated network of nerve cells and fibres by which nerve impulses are transmitted throughout the body.
  • Endocrine system consists of glands that produce hormones.
  • Circulatory system consists of heart and blood vessels which supply throughout the body.
In our body, nervous system and endocrine system jointly integrate all the activities as nervous system directs endocrine system to secrete hormones that act on the target organs.
So, the correct answer is 'Nervous system and Endocrine system'.

Endocrine glands are those glands which pour their secretion directly into 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Ducts

  2. Substrate

  3. Blood

  4. All of the above

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Correct Option: C
Explanation:
Endocrine glands are the ductless glands which secrete their products directly in the blood from where they reach the target organs and affect their functioning and regulation. For example, pituitary gland, hypothalamus, pineal gland etc. On the other hand, the glands which secrete their products through ducts are called exocrine glands. 
So, the correct answer is 'Blood'.

A heterocrine gland is one which

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Has two distinct parts

  2. Serves a double function of exocrine and endocrine gland

  3. Produces two types of hormones

  4. Occurs in two places

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Correct Option: B
Explanation:
Heterocrine glands are the glands which act both as exocrine and endocrine glands. Exocrine glands are the glands that secrete their products through ducts whereas endocrine glands are the ductless glands which secrete their products directly into the blood. For example, in humans, Pancreas is a heterocrine gland. It secretes insulin hormone into blood and act as endocrine gland and when it secretes digestive enzymes and juice through pancreatic duct, it acts as exocrine gland.
So, the correct answer is 'Serves a double function of exocrine and endocrine gland'.

Which of these is not an endocrine gland? 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Liver

  2. Pancreas

  3. Testes

  4. Thymus

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Correct Option: A
Explanation:

Endocrine glands are the ductless glands that secrete their products into bloodstream from where they are carried to the target organs. Pancreas, testes and thymus are endocrine glands as they secrete hormones. Pancreas secrete insulin and glucagon, testes secrete testosterone and thymus secrete thymosin hormone. Liver is not an endocrine gland instead, it is a digestive organ which secretes bile juice which is necessary for emulsification of fats.
So, the correct answer is 'Liver'.

Hormones are produced by 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Apocrine glands

  2. Endocrine glands

  3. Heterocrine glands

  4. Both B and C

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Correct Option: D
Explanation:

  • Apocrine glands are generally present in the skin and secrete their products on the skin surface.
  • Endocrine glands are the ductless glands which secrete their products directly into the blood.
  • Heterocrine glands are the glands which act both as exocrine and endocrine glands.For example, in humans, Pancreas is a heterocrine gland. It secretes insulin hormone into blood and act as endocrine gland and when it secretes digestive enzymes and juice through pancreatic duct, it acts as exocrine gland.
Hormones are the chemicals or signalling molecules that are produced by endocrine glands and secreted into blood stream from where they reach their target organs and cause a change in their function and regulation.
Hence, both options B and C are correct.
So, the correct answer is 'Both B and C'.

Secretions of ductless glands is known as 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Hormones

  2. Pheromones

  3. Enzymes

  4. Mucoids

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Correct Option: A
Explanation:
A. Hormones are the chemicals or signalling molecules secreted from endocrine glands (ductless glands that secrete their products directly into blood stream from where they are carried to their target organs) which affect the functioning and regulation of target organs.
B. Pheromones are chemicals used by organisms of same species for communication.
C. Enzymes are the biocatalysts that speed up the rate of reaction without getting altered.
D. Mucoids are the fluids secreted from mucosal glands or mucosal membranes.
So, the correct answer is 'Hormones'.

Find out the correct statement. 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Endocrine glands regulate neural activity but not vice versa.

  2. Neurons regulate endocrine activity but not vice versa.

  3. Endocrine glands regulate neural activity and nervous system regulates endocrine glands.

  4. Neither hormones control neural activity nor the neurons control endocrine activity.

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Correct Option: C
Explanation:

  • Nervous system is a coordinated network of nerve cells and fibres by which nerve impulses are transmitted throughout the body.
  • Endocrine system consists of glands that produce hormones. Hormones are secreted in the blood from where they reach the target organs and cause changes in their functioning and regulation.
In our body, nervous system and endocrine system jointly integrate all the activities as nervous system directs endocrine system to secrete hormones that act on the target organs.
So, the correct answer is 'Endocrine glands regulate neural activity and nervous system regulates endocrine glands.'.

Which of these is a mixed gland? 

biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Thyroid

  2. Pituitary

  3. Adrenal

  4. Pancreas

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Correct Option: D
Explanation:
A. Thyroid gland is situated between the trachea and larynx in the neck and secretes thyroxine hormone which increases oxygen consumption by metabolically active tissues.
B. Pituitary gland is the master gland that regulates the activity of other endocrine glands and secretes many hormones like growth hormone, follicle stimulating hormone, thyroid stimulating hormone etc.
C. Adrenal gland is present on upper side of kidneys and has two parts, adrenal cortex which secrete glucocorticoids, mineralocorticoids and sexocorticoids and adrenal medulla which secrete adrenaline and nor-adrenaline hormone.
D. Pancreas is a heterocrine gland as it acts both as endocrine and exocrine gland. It secretes insulin hormone into blood and act as endocrine gland and when it secretes digestive enzymes and juice through pancreatic duct, it acts as exocrine gland.
Hence, pancreas is a mixed gland.
So, the correct answer is 'Pancreas'.