Q:

....... produces a usable form of energy for the cell.

A) Ribosomes B) Plastids
C) Mitochondria D) Chloroplast
 
Answer & Explanation Answer: C) Mitochondria

Explanation:

Mitochondria are organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. Hence, thay are also called as Power house of the cell.

 

mitochondria1593761207.jpg image

 

* Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

 

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6 997
Q:

Which of the following performs modulation and demodulation?

A) coaxial cable B) modem
C) fiber optic D) satellite
 
Answer & Explanation Answer: B) modem

Explanation:

A modem is a hardware device which performs both modulation and demodulation. MODEM means (Modulator-Demodulator).

 modem_1593758111.png image

 

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1 686
Q:

On the PC side the printer port is a

A) 25 pin female parallel connector B) 25 pin female serial connector
C) 15 pin female parallel connector D) 25 pin male serial connector
 
Answer & Explanation Answer: A) 25 pin female parallel connector

Explanation:

Screenshot_(66)1593757209.jpg image

 

On the PC side the printer port is a 25 pin female parallel connector.

 

 

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2 1357
Q:

In HTML, ______________ pair defines a row of the table.

A) <table></table> B)  <tr></tr>
C) <td></td> D) <th></th>
 
Answer & Explanation Answer: B)  <tr></tr>

Explanation:
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3 712
Q:

Which of the statements given below are correct?

A) Alexander Zverev won the Tennis 2017 Italian Open Men's Singles.

B) In 2017 Pro Kabaddi League, Selvamani K played for Puneri Paltan.

C) United States hosted the Tennis 2017 Hopman Cup.

 

A) Only A B) Only B
C) Both A and B D) Both A and C
 
Answer & Explanation Answer: A) Only A

Explanation:
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0 1940
Q:

Living things constitute the biotic component of the ___________________.

A) mesosphere B) biosphere
C) thermosphere D) heliosphere
 
Answer & Explanation Answer: B) biosphere

Explanation:
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2 501
Q:

Sound is a form of ____________ which produces a sensation of hearing in our ears.

A) power B) energy
C) force D) momentum
 
Answer & Explanation Answer: B) energy

Explanation:
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1 708
Q:

A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.

A) 3750 B) 7500
C) 1875 D) 5000
 
Answer & Explanation Answer: A) 3750

Explanation:
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2 603