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Q:

Biological catalysts are protein molecules which

1. speed up a chemical reaction

2. remain unchanged after reaction

3. function optimally at 37 deg C.

4. do not have an enzymatic activity

Select the correct answer using the code given below.

A) 1 only B) 1, 2 and 3
C) 2 and 3 only D) 1, 3 and 4
 
Answer & Explanation Answer: B) 1, 2 and 3

Explanation:

Enzymes are biological catalysts. Enzymes are the catalysts involved in biological chemical reactions.

A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells.

A catalyst remains chemically unchanged itself at the end of a reaction.

Each enzyme has a temperature that it works optimally in, which in humans is around 98.6 degrees Fahrenheit, 37 degrees Celsius –the normal body temperature for humans.

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Filed Under: Biology
Exam Prep: Bank Exams

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Q:

Who is known as father of Zoology

A) Darwin B) Aristotle
C) Lamark D) Theophrastus
 
Answer & Explanation Answer: B) Aristotle

Explanation:
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Filed Under: Biology

621 35125
Q:

What is two days after the day after the day before yesterday?

Answer

Tomorrow


The day before yesterday was two days ago; the day after the day before yesterday was yesterday; two days after that (yesterday) is tomorrow.

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Subject: Clock puzzles

118 35125
Q:

The wind is variable today.

Synonym of the word in bold?

A) mild B) Shifting
C) Steady D) Chilling
 
Answer & Explanation Answer: B) Shifting

Explanation:

Variable means changes or shifts timely. Hence, synonym of variable is shifting.

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

10 34953
Q:

Arrange the continents from largest to smallest?

A) Africa
B) Europe
C) North America
D) Asia
E) Australia
F) South America
G) Antarctica

A) D,A,C,F,G,B,E B) A,C,B,F,E,D,G
C) D,B,F,C,G,A,E D) E,A,C,D,G,F,B
 
Answer & Explanation Answer: A) D,A,C,F,G,B,E

Explanation:
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Filed Under: General Awareness
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Q:

Which of the following is not a vector quantity?

A) speed B) velocity
C) torque D) displacement
 
Answer & Explanation Answer: A) speed

Explanation:

Which_of_the_following_is_not_a_vector_quantity1552385336.png image

A vector quantity is a quantity which has both magnitude and direction. Here in the given options, speed is a scalar quantity but not the vector quantity.

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Filed Under: Physics
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251 34880
Q:

An astronaut in outer space will observe sky as

A) White B) Black
C) Blue D) Red
 
Answer & Explanation Answer: B) Black

Explanation:
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Filed Under: General Awareness

291 34861
Q:

A computer consists of

A) motherboard B) hard disk drive
C) central processing unit D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A computer system consists of a computer case, a power supply unit, a motherboard, a central processing unit (CPU), main memory, and a hard disk drive.

Input devices include a keyboard, mouse, microphone, video camera, and image scanner.

Output devices include a monitor, speakers, and a printer.

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Filed Under: Computer
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