Questions

Q:

The outer membrane that covers the lungs

A) Dura mater B) pleura
C) Pia mater D) Myelin sheath
 
Answer & Explanation Answer: B) pleura

Explanation:

The pleura is the membrane that covers the lungs, according to InnerBody. The pleura consists of two layers, with the parietal pleura forming the membrane's outer layer and the visceral pleura forming the membrane's inner layer.

 

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Q:

Alum is used 

A) as an analgesic B) in the purification of water
C) as a fertilizer D) as a disinfectant
 
Answer & Explanation Answer: B) in the purification of water

Explanation:

Alum is a common alum, potassium aluminum sulphate K2SO4.Al2SO43.24H2O which makes colloidally suspended impurities in water such as clay to settle down.

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Filed Under: Chemistry
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Q:

Number Challenge

18921670_1321859587921142_9198649458573070542_n1499236265.jpg image

A) 1 B) 2
C) 4 D) 0
 
Answer & Explanation Answer: A) 1

Explanation:

Sum of all numbers in each row and columns must be 15.

In last row to gt sum as 15 missing number must replaced by 1. 

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Q:

What is unit of Astronomical distance ?

A) light year B) angstrom
C) weber D) lux
 
Answer & Explanation Answer: A) light year

Explanation:

angstrom is used to measure wave length,

weber is used to measure Magnetic flux,

lux is used to measure Intensity of illumination.

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Q:

Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)

A) the gold piece will weigh more B) the silver piece will weighmore
C) both silver and gold pieces weigh equal D) weighing will depend on their masses
 
Answer & Explanation Answer: B) the silver piece will weighmore

Explanation:

As it is said that density of gold is greater than that of density of silver, so silver occupies a greater volume than gold. So it has more upthrust from the water, although they both show the same weight under water, there is more silver present. Hence silver piece will weigh more.

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Q:

Which of the following statements about aldosterone is NOT correct?

A) Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule. B) Aldosterone is stimulated by decreased plasma sodium levels and increased plasma potassium levels.
C) Aldosterone is produced in the adrenal cortex. D) Aldosterone increases the number of passive sodium channels in the luminal membrane of the distal tubule and collecting duct, thus aiding sodium reabsorption.
 
Answer & Explanation Answer: A) Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule.

Explanation:

Aldosterone, the main mineralocorticoid hormone, is a steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland. It is essential for sodium conservation in the kidney, salivary glands, sweat glands and colon.

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Q:

Excess of fat in the body is stored in

A) Adipose tissue B) Acrosome
C) Erythrocytes D) Bone marrow
 
Answer & Explanation Answer: A) Adipose tissue

Explanation:
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Q:

Periyar Wild Life Sanctuary is located in _________ State

A) Andhra Pradesh B) Tamil Nadu
C) Kerala D) karnataka
 
Answer & Explanation Answer: C) Kerala

Explanation:

The Periyar Sanctuary covers an area of 777sq km. It was established in 1949. Elephants , Gaurs, leopards, solth bear, sambhars, barking deer, wild dogs, wild boars, black Nilgiri langur and water birds can be seen in this sanctuary.

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