Questions

Q:

Do plant cells have Mitochondria?

A) No B) Yes
C) May be D) Can't be determined
 
Answer & Explanation Answer: B) Yes

Explanation:

While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. Cellular respiration takes place in the mitochondria. They need mitochondria for this reason.
Hence with this logic, we can say that Plants cells have mitochondria.

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Q:

Which statements about viruses are true?

A) HIV contains reverse transcriptase. B) A retrovirus contains RNA.
C) Both A & B D) All RNA-containing viruses are retroviruses.
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The statements true about viruses are :

 

1. The capsid enters the host cell if the virus is enveloped.

2. Enveloped viruses bud from the host cell. 

3. HIV contains reverse transcriptase.

4. A retrovirus contains RNA.

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Q:

Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?

A) Vitamin C B) Vitamin K
C) Vitamin D D) Vitamin B
 
Answer & Explanation Answer: A) Vitamin C

Explanation:

Deficiency of Vitamin C causes Scurvy, Swelling of gums etc.Vitamin K causes Non-clotting of blood ,Vitamin D causes Rickets in children and Osteomalasia in adults, Vitamin B 1 causes Beriberi,B2 causes Cracking of skin,reddish eye,cracking of tongue,B3 causes Whitening of hair ,mentally retardness ,B5 causes Pallagra or 4D syndrome,B6 causes Anemia,skin disease ,B7 causes Paralysis,hair falling,B11 causes Dysentery and B12 causes Jaundice and Teroile Glutemi

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Q:

Who wrote the first history book?

A) Herodotus B) Euclid
C) Julius Caesar D) Aristotle
 
Answer & Explanation Answer: A) Herodotus

Explanation:

Herodotus, a Greek author written the first history book in 5th century B.C.

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Q:

Which of the following countries is not a member of the UN

A) Nepal B) Iran
C) Kampuchea D) Switzerland
 
Answer & Explanation Answer: C) Kampuchea

Explanation:
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Q:

Wind and solar energy are examples of

A) renewable B) non renewable
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) renewable

Explanation:
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Q:

Radiocarbon is produced in the atmosphere as a result of

A) collision between fast neutrons and nitrogen nuclei present in the atmosphere B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere D) lightning discharge in atmosphere
 
Answer & Explanation Answer: A) collision between fast neutrons and nitrogen nuclei present in the atmosphere

Explanation:
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Q:

India's heaviest satellite built by ISRO is

A) GSAT - 11 B) GSAT - 09
C) GSAT - 13 D) GSAT - 10
 
Answer & Explanation Answer: A) GSAT - 11

Explanation:

India’s heaviest satellite GSAT-11 launched successfully from French Guiana. GSAT-11 is going to provide high data connectivity of 16 GBPS to the country.

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