Chemical Coordination and Integration Test 39

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Chemical Coordination and Integration Test 39

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Question 1
1 / -0

In uterus, endometrium proliferates in response to

A
Relaxin

B
Oxytocin

C
Progesterone

D
Oestrogen

E
LH

Solution

The FSH stimulates the follicle cells to secrete estrogen a female sex organ.
It stimulates the uterus to prepare for the implantation and nourishment of the foetus likely to arrive after ovulation. The wall of the uterus, relatively thin in the beginning of the cycle, progressively becomes thick by greater development of its smooth muscle layer, the myometrium, and proliferation of its epithelial lining, the endometrium.
So, the correct answer is 'Oestrogen'.
Question 2
1 / -0

The female sex hormone is

A
Androgen

B
Insulin

C
Oestrogen

D
None of these

Solution

Androgens are group of hormones that primarily influence the growth and development of the male reproductive system. The predominant and most active androgen is testosterone, which is produced by the male testes.
Insulin is a hormone produced by the pancreas that allows the body to use sugar (glucose) from carbohydrates in the food. It is responsible for regulating blood glucose levels as part of metabolism.
Estrogen, or oestrogen, is the primary female sex hormone. It is responsible for the development and regulation of the female reproductive system and secondary sex characteristics.
So, the answer is C.
Question 3
1 / -0

The hormone that increases the blood calcium level and decreases its excretion by kidney is

A
Parathormone

B
Calcitonin

C
Thyroxine

D
Insulin

Solution

Parathormone or parathyroid hormone is secreted from parathyroid glands. Parathormone plays an important role in the calcium balance of the body. It maintains the calcium balance between the blood and the other tissues. When the calcium level in the blood decreases, parathyroid hormone is released in order to increase the calcium level in the blood. It acts on bones and other skeletal structures and mobilizes the calcium ($$Ca^{2+}$$) from the bones into the blood. This is called bone resorption. The parathormone also increases the reabsorption of calcium by the renal tubules and absorption of calcium from the digested food. It decreases excretion of calcium by the kidney.
Question 4
1 / -0

Oestrogen and testosterone are steroid hormones and are most likely bind to

A
Membrane ions channels

B
Enzyme-linked membrane receptors

C
G-protein linked membrane receptors

D
Cytoplasmic receptors

Solution

Oestrogen and testosterone are female and male sex hormones respectively. Chemically, these are steroid hormones. These are lipid soluble. They easily pass through the cell membrane and bind to the specific intracellular cytoplasmic receptor.
Thus, the correct answer is option D.
Question 5
1 / -0

Hormones of which of the following endocrine glands lacks peptides, amines and sulphur?

A
Thyroid and gland

B
Anterior pituitary

C
Testes and gonads

D
Posterior pituitary and pancrease
Question 6
1 / -0

The name of endocrine gland in the human brain is

A
Thyroid

B
Adrenal

C
Thymus

D
Pituitary

Solution

Endocrine glands are group of secretory cells surrounded by an extensive network of capillaries that facilitates diffusion of hormones into the bloodstream. These glands include Pituitary gland, Pineal body, thymus, thyroid, parathyroid, adrenal glands, etc.
Thyroid gland is situated in the neck in front of the larynx and trachea at the level of 5th, 6th and 7th cervical and 1st thoracic vertebrae. The two adrenal glands are situated on the upper pole of each kidney enclosed within the renal fascia. The thymus is a soft gland located behind the breastbone and between the lungs. The pituitary gland is a pea sized structure located at the base of the brain, just below the hypothalamus.
So, the answer is D.
Question 7
1 / -0

Which of the following is responsible for sleep wake cycle movement?

A
Dopamione

B
Melatonin

C
Serotonin

D
Adrenaline

Solution

Option B is correct here.

The circadian rhythm is set by the suprachiasmatic nucleus of the hypothalamus, which regulates the sleep-wake cycle.
The suprachiasmatic nucleus projects to the pineal gland to release melatonin, which promotes sleep.
At the time of morning melatonin secretion through pineal gland get low and get stop slowly because of that person get wake up.
Question 8
1 / -0

Match the following. Identify the correct match.
Set-I(Endocrine glands) Set-II(Hormones secreted)
A) Pituitary gland I) Melatonin hormone
B) Pineal gland II) Thyroxine hormone
C) Thyroid gland III) Cortico steroid hormone
D) Adrenal gland IV) Growth hormone

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

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

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

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

Solution

A) The pituitary gland is divided into two parts which secrete different hormones.
Hormones secreted by Anterior Pituitary:
(i) Adrenocorticotropic hormone (ACTH)
(ii) Thyroid Stimulating Hormone (TSH)
(iii) Follicle Stimulating Hormone (FSH)
(iv) Luteinizing Hormone (LH)
(v) Growth Hormone (GH)
(vi) Prolactin
Hormones secreted by Posterior Pituitary:
(i) Oxytocin
(ii) Antidiuretic Hormone or Vasopressin
B) The pineal gland is a tiny endocrine gland found in the brain which produces and secretes the hormone melatonin that helps regulate biological rhythms such as sleep and wake cycles.
C) There are two thyroid hormones: T3 (triiodothyronine) and T4 (thyroxine). T3 and T4 regulate your body's temperature, metabolism and heart rate.
D) The adrenal gland is divided into two parts: cortex and medulla.
The adrenal cortex produces three hormones:
(i) Mineralocorticoids
(ii) Glucocorticoids
(iii) Adrenal androgens
The adrenal medulla produces catecholamines:
(i) adrenaline
(ii) noradrenaline
(iii) dopamine
Hence, the correct answer is option C.
Question 9
1 / -0

Endorphins are produced by

A
Pineal body

B
Thymus

C
Pituitary gland

D
Both pituitary gland and central nervous system
Solution
- Endorphins are endogenous opioid neuropeptides and peptide hormones in humans and other animals.
- They are produced by the central nervous system and the pituitary gland.
- The principal function of endorphins is to inhibit the communication of pain signals.
- They may also produce a feeling of euphoria very similar to that produced by other opioids. Hence, Endorphins are produced by both pituitary gland and central nervous system.
So, the correct answer is ' both pituitary gland and central nervous system'.
Question 10
1 / -0

During danger, emotional or during struggle etc., secretion of which hormone increases ____________.

A
Vasopressin

B
Oxytocin

C
Abscissic acid

D
Ethylene

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Re-Attempt Weekly Quiz Competition

Set-I(Endocrine glands)	Set-II(Hormones secreted)
A) Pituitary gland	I) Melatonin hormone
B) Pineal gland	II) Thyroxine hormone
C) Thyroid gland	III) Cortico steroid hormone
D) Adrenal gland	IV) Growth hormone

Chemical Coordination and Integration Test 39

Result

Chemical Coordination and Integration Test 39

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Rank

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SHARING IS CARING

Question 1

Relaxin

Oxytocin

Progesterone

Oestrogen

LH

Solution

Question 2

Androgen

Insulin

Oestrogen

None of these

Solution

Question 3

Parathormone

Calcitonin

Thyroxine

Insulin

Solution

Question 4

Membrane ions channels

Enzyme-linked membrane receptors

G-protein linked membrane receptors

Cytoplasmic receptors

Solution

Question 5

Thyroid and gland

Anterior pituitary

Testes and gonads

Posterior pituitary and pancrease

Question 6

Thyroid

Adrenal

Thymus

Pituitary

Solution

Question 7

Dopamione

Melatonin

Serotonin

Adrenaline

Solution

Question 8

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

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

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

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

Solution

Question 9

Pineal body

Thymus

Pituitary gland

Both pituitary gland and central nervous system

Solution

Question 10

Vasopressin

Oxytocin

Abscissic acid

Ethylene

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