Chemical Coordination and Integration Test 44

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Chemical Coordination and Integration Test 44

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Weekly Quiz Competition

Question 1
1 / -0

Pick the odd one in each series and select the correct option:

(i) Areolar tissue, blood neuron, tendon
(ii) Salivary gland, gastric gland, tear gland, thyroid gland
(iii) Adrenal gland, sweat gland, milk gland, oil gland

A
(i) Areolar tissue; (ii) Gastric gland; (ii) Milk gland

B
(i) Blood; (ii)- Tear gland; (ii) Oil glamd

C
(i) Tendon; (ii) Salivary gland; (iii) Sweat gland

D
(i) Neuron; (ii) Thyroid gland; (iii) Adrenal gland

Solution

(i) Neuron is a part of neural tissue while the remaining three belong to connective tissue.
(ii) Thyroid gland is an endocrine gland while the remaining three are exocrine glands.
(iii) Adrenal gland is an endocrine gland while the remaining three are exocrine glands.
Question 2
1 / -0

Which one of the following features is common in silver fish, scorpion, dragonfly and prawn?

A
Three pairs of legs and segmented body

B
Chitinous cuticle and two pairs of antennae

C
Jointed appendages and chitinous exoskeleton

D
Cephalothorax and tracheae

Solution

Silver fish, scorpion, dragonfly and prawn belong to the Phylum Arthropoda and thus, have jointed appendages and chitinous exoskeleton.
Question 3
1 / -0

Which of the following statements is correct for 'parathormone'?

A
It increases blood calcium level and decreases calcium store of the bone

B
It decreases blood calcium level and increased calcium store of the bone

C
It increases blood glucose level and decreases calcium store of the bone

D
It decreases blood glucose level and increases calcium store of the bone

Solution

The parathyroid gland produce parathyroid hormone. This hormone helps maintain an appropriate balance of calcium in the blood stream and in tissues that depend on calcium for proper functioning.
So, option A is the correct option.
Question 4
1 / -0

In which of the following options, hormone is not matching with its source and function?

A
Hormone- Glucocorticoids, Source-Adrenal cortex, Function-Produces anti-inflammatory reactions

B
Hormone-Vasopressin, Source-Posterior pituitary, Function-Stimulates resorption of water and electrolytes

C
Hormone-Parathyroid hormone, Source-thyroid, Function-Decreases the blood $$Ca^{2+}$$ level

D
Hormone-Melatonin, Source-Pineal gland, Function-Maintains sleep-wake cycle

Solution

Hormone released by the parathyroid gland is parathyroid hormone also called parathormone or parathyrin, this hormone regulates the Ca$$^{+2}$$ concentration in the serum by acting upon bone, kidney and intestine.
So, the correct answer is 'Hormone-Parathyroid hormone, Source-thyroid, Function-Decreases the blood Ca$$^{+2}$$ level'
Question 5
1 / -0

Insulin receptors are.

A
Extrinsic proteins

B
Intrinsic proteins

C
G-proteins

D
Trimeric proteins

Solution

Insulin receptors are extrinsic proteins. They are made up of an alpha and a beta subunit that are held together by disulphide bonds. Insulin, which is a polypeptide hormone, binds to the extracellular face of the α-subunits.
Thus, the correct answer is 'Extrinsic proteins.'
Question 6
1 / -0

Which gland atrophies in adults?

A
Pancreas gland

B
Thymus gland

C
Adrenal gland

D
Thyroid gland

Solution

Thymus gland is a prominent gland at birth but gradually atrophies in the adult. It is a soft, pinkish, bilobed mass of lymphoid tissue. It secretes a hormone thymosin which is involved in producing immunity.
Question 7
1 / -0

Which one of the following is termed temporary gland?

A
Pineal

B
Thymus

C
Pancreas

D
Kidney

Solution

Thymus is called temporary gland as it degenerates in old individuals resulting in a decreased production of thymosin.
Question 8
1 / -0

Match column I with column II and select the correct option from the codes given.
Column I Column II
A. Thyroid (i) Acts on the renal tubules
B. Adrenal (ii) Regulates blood calcium level
C. Pituitary (iii) Maintains diurnal rhythm of our body
D. Pineal (iv) Acts on the meloncytes

A
A-(iv), B-(iii), C-(ii), D-(i)

B
A-(iii), B-(iv), C-(i), D-(ii)

C
A-(iv), B-(ii), C-(iii), D-(i)

D
A-(ii), B-(i), C-(iv), D-(iii)

Solution

The thyroid gland is composed of stromal cells which release TCT (Thyrocalcitonin ) which regulates the calcium level in the body, Adrenal gland releases aldosterone which acts on renal tubules, Pituitary gland releases MSH which act on melanocytes, Pineal gland acts as a biological clock of body and maintains the diurnal rhythm of our body. So the correct option is ' A-(ii), B-(i), C-(iv), D-(iii)'
Question 9
1 / -0

The blood calcium level is lowered by the deficiency of?

A
Thyroxine

B
Calcitonin

C
Parathormone

D
Insulin
Solution
Correct Answer: (C) Parathormone.
Explanation:
Parathyroid glands are the glands that are located next to the thyroid glands in our body.
It secretes parathormone which is responsible for maintaining calcium levels in our body.
That's why it is known as the calcium homeostasis regulating hormone.
The deficiency of parathormone in our body hampers the calcium metabolism in our body which decreases the calcium level in our blood as it acts antagonistically with the calcitonin hormone.
The thyroxine hormone secreted by the thyroid glands is responsible for painting our BMR.
Calcitonin lowers the blood calcium level in the blood and is also secreted by the thyroid gland.
Insulin helps in reducing the blood sugar level and is secreted by the pancreatic beta cells.
Hence, the deficiency of parathormone in our body will cause a lowering of the level of calcium in our body.
Question 10
1 / -0

A person is having problem with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?

A
Parotid

B
Pancreas

C
Adrenal cortex

D
Parathyroid

Solution

Parathyroid glands located behind the thyroid gland, produce a hormone called parathormone. This hormone maintains calcium and phosphorus balance in the body. Thus, if a person is having problem with calcium and phosphorus metabolism in the body, this means, his parathyroid glands are not functioning properly.

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Re-Attempt Weekly Quiz Competition

Column I	Column II
A. Thyroid	(i) Acts on the renal tubules
B. Adrenal	(ii) Regulates blood calcium level
C. Pituitary	(iii) Maintains diurnal rhythm of our body
D. Pineal	(iv) Acts on the meloncytes

Chemical Coordination and Integration Test 44

Result

Chemical Coordination and Integration Test 44

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Rank

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SHARING IS CARING

Question 1

(i) Areolar tissue; (ii) Gastric gland; (ii) Milk gland

(i) Blood; (ii)- Tear gland; (ii) Oil glamd

(i) Tendon; (ii) Salivary gland; (iii) Sweat gland

(i) Neuron; (ii) Thyroid gland; (iii) Adrenal gland

Solution

Question 2

Three pairs of legs and segmented body

Chitinous cuticle and two pairs of antennae

Jointed appendages and chitinous exoskeleton

Cephalothorax and tracheae

Solution

Question 3

It increases blood calcium level and decreases calcium store of the bone

It decreases blood calcium level and increased calcium store of the bone

It increases blood glucose level and decreases calcium store of the bone

It decreases blood glucose level and increases calcium store of the bone

Solution

Question 4

Hormone- Glucocorticoids, Source-Adrenal cortex, Function-Produces anti-inflammatory reactions

Hormone-Vasopressin, Source-Posterior pituitary, Function-Stimulates resorption of water and electrolytes

Hormone-Parathyroid hormone, Source-thyroid, Function-Decreases the blood $$Ca^{2+}$$ level

Hormone-Melatonin, Source-Pineal gland, Function-Maintains sleep-wake cycle

Solution

Question 5

Extrinsic proteins

Intrinsic proteins

G-proteins

Trimeric proteins

Solution

Question 6

Pancreas gland

Thymus gland

Adrenal gland

Thyroid gland

Solution

Question 7

Pineal

Thymus

Pancreas

Kidney

Solution

Question 8

A-(iv), B-(iii), C-(ii), D-(i)

A-(iii), B-(iv), C-(i), D-(ii)

A-(iv), B-(ii), C-(iii), D-(i)

A-(ii), B-(i), C-(iv), D-(iii)

Solution

Question 9

Thyroxine

Calcitonin

Parathormone

Insulin

Solution

Question 10

Parotid

Pancreas

Adrenal cortex

Parathyroid

Solution

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