General Knowledge Questions

Q:

In photosynthesis________

A) Light energy is converted into chemical energy B) Chemical energy is converted into Light energy
C) Chemical energy is converted into electrical energy D) Light energy is converted into Mechanical energy
 
Answer & Explanation Answer: A) Light energy is converted into chemical energy

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:

The study of volcanoes is called

A) Chemicology B) Lavology
C) Volcanology D) Magmalogy
 
Answer & Explanation Answer: C) Volcanology

Explanation:

The study of volcanoes, lava, magma, and related geological, geophysical and geochemical phenomenas is called Volcanology.

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Q:

The oldest oil refinery in India is at

A) Haldia B) Digboi
C) Rajpur D) Noonmati
 
Answer & Explanation Answer: B) Digboi

Explanation:

Digboi, in Assam is where the oldest oil refinery in India. It was build in 1901.

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Q:

The organs of the urinary system are

A) Kidney B) Urinary bladder
C) Ureter D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

the_organs_of_the_urinary_system_are1537338921.png image

 

The urinary system purpose in the human body is to eleminate the waste from the body. The urinary system is also called as Rena system. It consists of kidney, ureter, urinary bladder and urethra.

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Q:

Which of the following is true of enzymes?

A) Enzymes lowers the activation energy for the chemical reaction B) Enzymes speed up the rate of a chemical reaction
C) Both A & B D) Neither A nor B
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions. The molecules upon which enzymes may act are called substrates and the enzyme converts the substrates into different molecules known as products.

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Q:

Activation of the receptors by stimuli is called

A) Perception B) Habituation
C) Adaptation D) Sensation
 
Answer & Explanation Answer: D) Sensation

Explanation:

Activation of the receptors by stimuli is called Sensation.

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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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