Tag: coordination in human beings- chemical control

Questions Related to coordination in human beings- chemical control

Which one of the following pairs includes only endocrine glands?

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

  1. Thymus and testes

  2. Adrenal and ovary

  3. Parathyroid and adrenal

  4. Pancreas and parathyroid

Show answer
Correct Option: C
Explanation:
Endocrine glands are ductless glands that secrete their products directly into the bloodstream from where they are carried to their target organs and cause changes in their functioning and regulation. Parathyroid gland is present on posterior surface of lobes of thyroid gland and secretes parathormone which increases calcium level in blood. Adrenal glands are located on upper surface of kidneys. They consist of adrenal cortex secreting corticoid hormones and adrenal medulla secreting adrenaline and noradrenaline. Both parathyroid and adrenal gland are endocrine glands.
So, the correct answer is 'Parathyroid and adrenal'.

Which of these hormones are not secreted by an endocrine gland?

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

  1. ADH

  2. PTH

  3. T$ _4$

  4. ANF

Show answer
Correct Option: D
Explanation:
A. ADH (Antidiuretic hormone) is secreted from posterior lobe of pituitary gland.
B. PTH (Parathormone) is secreted from parathyroid gland.
C. T4 or tetraiodothyronine is thyroxine hormone which is secreted from thyroid gland.
D. ANF (Atrial natriuretic factor) is a peptide hormone secreted from heart.
Endocrine glands are ductless glands which secrete hormones into blood stream. Heart is not an endocrine gland.
So, the correct answer is 'ANF'.

Which one of the following statements is correct ?

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

  1. Neurons regulate endocrine activity, but not vice verse

  2. Endocrine glands regulate neural activity, and nervous system regulates endocrine glands

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

  4. Endocrine glands regulate neural activity, but not vice versa

Show answer
Correct Option: A
Explanation:
The autonomous nervous system regulates the secretion of glands whereas the glands do not regulate the nervous system.

So, the correct answer is 'Neurons regulate endocrine activity, but not vice verse'.

Glands which pour their secretion-into the blood are called:

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

  1. apocrine glands

  2. holocrine glands

  3. exocrine glands

  4. endocrine glands

Show answer
Correct Option: D
Explanation:

The glands which pour their secretions directly into blood are called endocrine glands.

So, the correct option is 'endocrine glands'.

Sebaceous glands:

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

  1. help keep the skin soft

  2. are involved in body temperature regulation

  3. are responsible for breaking out in a cold sweat

  4. are found in the external auditory meatus

Show answer
Correct Option: B
Explanation:

Sebaceous glands work with sweat producing eccrine glands to regulate body temperature.

So, the correct option is 'are involved in body temperature regulation'.

The nervous system maintains homeostasis within the body by providing rapid responses to change. The other body system that responds more slowly, but just as importantly, is the 

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

  1. Integumentary system

  2. Endocrine system

  3. Cardiovascular system

  4. Musculoskeletal system

Show answer
Correct Option: B
Explanation:

The endocrine system is the collection of glands that produce hormones that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.

So, the correct option is 'Endocrine system'.

Which of the following is not an endocrine gland?

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

  1. Pituitary gland

  2. Thyroid gland

  3. Pineal gland

  4. Salivary gland

Show answer
Correct Option: D
Explanation:
There are two types of glands namely, endocrine glands and exocrine glands. 
Exocrine glands are those that produce and secrete substances onto an epithelial surface of the body through a duct. Examples include sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, and mucous glands.
Endocrine glands are those that secrete their products directly into the bloodstream. Examples include pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

So the answer is option D.

Match the following.

List-I List-II
a) Pericardial glands $1)$ Molluscs
b) Antennary glands $2)$ Rotifers
c) Protonephridia (solenocytes) $3)$ Arthropods
d) Protonephridia (flame bulbs) $4)$ Lancelets
biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. A-I, B-III, C-IV, D-II

  2. A-II, B-III, C-IV, D-I

  3. A-II, B-I, C-III, D-V

  4. A-II, B-I, C-V, D-III

Show answer
Correct Option: A
Explanation:

The pericardium is the protective layer of the heart. It consists of two layers, an outer fibrous layer and the inner serous layer. The serous layer again is made up of two membranes enclosing the pericardial cavity. Molluscs have a true body cavity or coelom. They posses pericardial glands. Antennary glands are also called as green glands. They lie enclosed within the coxal segment of each antenna. Each gland has three parts, namely Sac, labyrinth and bladder. These are seen in crustaceans like arthropods. Protonephridia are of two types, solenocytes and flame bulbs. These are present in animals that lack a true coelom. The protonephridia terminates in the enlarged bulb-like structure and have cilia inside. If there is only one cilium, it is called as solenocyte. If there are more cilia, it is called as flame bulbs.  Lancelets have solenocytes as excretory structure. Rotifers have flame bulbs.

Thus, the correct answer is 'A-I, B-III, C-IV, D-II.'

Study the following about endocrine disorder 

Hormones  Hyposecretion  Hypersecretion 
(I) Insulin  Diabetes mellitus  Unconsciousness and shock 
(II) Thyroxine  Simple Goitre  Myxoedema 
(III) Parathormone Tetany  Osteoporosis
(IV) Cortisol  Cushing's syndrome  Addison's diseases
biology endocrine glands different type of gland glands in humans coordination in human beings- chemical control

  1. Only I,III and IV

  2. Only I,II and II

  3. Only I and III

  4. All are true

Show answer
Correct Option: C
Explanation:

Insulin is a peptide hormone produced by beta cells of the pancreatic islets; it is considered to be the main anabolic hormone of the body. Diabetes is a condition caused by little or no secretion of insulin hormone. If too much insulin is present in the body,a person can go into shock, a condition called insulin shock. Parathyroid hormone is secreted by the parathyroid glands and is the most important regulator of blood calcium levels. Tetany is a condition marked by intermittent muscular spasms, caused by malfunction of the parathyroid glands and a consequent deficiency of calcium. Osteoporosis is a medical condition in which the bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes, or deficiency of calcium or vitamin D. It is a type of hyperthyroidism, meaning hypersecretion of parathormone(parathyroid) hormone.

So the correct option is 'Only I and III'

Match the following$:$

| | COLUMN I | | COLUMN II | | --- | --- | --- | --- | | $i$ | Ovaries | A | Growth hormone | | $ii$ | Testes | B  | Thyroxine | | $iii$ | Pancreas | C | Adrenalin | | $iv$ | Adrenal gland    | D | Insulin | | $v$ | Thyroid | E | Testosterone | | $vi$ | Pituitary | F | Estrogen, Progesterone |
Find the appropriate match for column I from column II, i.e., match which gland secretes which hormones.

Pancreas located near stomach produces 

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

  1. A

  2. B

  3. C

  4. D

Show answer
Correct Option: D
Explanation:

The endocrine system is composed of several endocrine glands. A ductless gland or endocrine gland secretes its product, i.e., hormones directly into the bloodstream and shows its effects at distinct part of the body. Pancreas located near stomach produces insulin.