IIT JEE Practice Question and Answer

Q: The term metabolism is best defined as 2480 0

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    the number of calories it takes to keep from shivering on a cold day
    Correct
    Wrong
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    biochemical reactions involved in building cell molecules or breaking down molecules for energy
    Correct
    Wrong
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    the length of time it takes to digest and absorb fats
    Correct
    Wrong
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    a measure of carbohydrate utilization, typically involving measurement of calories
    Correct
    Wrong
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Answer : 2. "biochemical reactions involved in building cell molecules or breaking down molecules for energy"
Explanation :

Answer: B) biochemical reactions involved in building cell molecules or breaking down molecules for energy Explanation: Metabolism (from Greek: μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations within the cells of organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes. In brief, the chemical processes that occur within a living organism in order to maintain life is called metabolism.

Q: A sold an article to B at 40% profit and B sold it to C at 50% profit, then what will be profit percent with respect to A ? 2480 0

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    97 %
    Correct
    Wrong
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    110 %
    Correct
    Wrong
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    135 %
    Correct
    Wrong
  • 4
    115 %
    Correct
    Wrong
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Answer : 2. "110 %"
Explanation :

Answer: B) 110 % Explanation: % Profit with respect to A = 40 + 50 + (40 x 50)/100 = 90 + 20 = 110 %.

Q: Which of the following is not a function of cytoskeleton in a cell ? 2479 0

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    Maintenance of cell shape and structure
    Correct
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    Intracellular transport
    Correct
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    Cell motility
    Correct
    Wrong
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    Support of the organelle
    Correct
    Wrong
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Answer : 2. "Intracellular transport"
Explanation :

Answer: B) Intracellular transport Explanation: A cytoskeleton is the frame that gives shape to a cell. And also it offers support, and facilitates movement through three main components: microfilaments, intermediate filaments, and microtubules.   The cytoskeleton helps the cell move in its environment and controls the movement of all of the cell's interior workings.

Q: Sonika invested an amount of Rs.5800 for 2 years. At what rate of compound interest will she get an amount of Rs.594.50 at the end of 2 years ? 2478 0

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    6.5%
    Correct
    Wrong
  • 2
    6%
    Correct
    Wrong
  • 3
    5%
    Correct
    Wrong
  • 4
    4.5%
    Correct
    Wrong
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Answer : 3. "5%"
Explanation :

Answer: C) 5% Explanation: C.I = P1+r100t-1   594.5 = 58001+r1002-1  594.55800+1=1+r1002   r100=1.05-1=0.05=> r = 5 % .

Q: Who has the best overall health? 2478 0

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    a person who exercises regularly and is not overweight
    Correct
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    a person who is not ill and is physically active
    Correct
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    a person who lives longer than his or her grandparents
    Correct
    Wrong
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    a person who balances social, physical, and mental health
    Correct
    Wrong
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Answer : 4. "a person who balances social, physical, and mental health"
Explanation :

Answer: D) a person who balances social, physical, and mental health Explanation: A person who balances all the three healths such as Physical, mental and Social healths has the best overall health.

Q: The capacity of a tank is 2400 m3.  A pump can be used both for filling and emptying the tank.  The emptying capacity of the pump is 10 m3/minute higher than its filling capacity. And also, the pump needs 8 minutes less to empty the tank than to fill it. Find the filling capacity of the pump. 2477 0

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    46 cub.m/min
    Correct
    Wrong
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    44 cub.m/min
    Correct
    Wrong
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    48 cub.m/min
    Correct
    Wrong
  • 4
    50 cub.m/min
    Correct
    Wrong
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Answer : 4. "50 cub.m/min"
Explanation :

Answer: D) 50 cub.m/min Explanation: Let filling capacity of the pump be 'F' m3/min Then, the filling capacity of the pump will be (F + 10) m3/min From the given data, 2400F - 2400F+10= 8⇒ 2400 F+10-FF(F+10) =8⇒ F2 + 10F - 3000 = 0⇒ F = 50 m3/min

Q: The process of encoding refers to 2476 0

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    getting information into memory.
    Correct
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    the recall of information previously learned.
    Correct
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    a clear memory of an emotionally significant event.
    Correct
    Wrong
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    the persistence of learning over time.
    Correct
    Wrong
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Answer : 1. "getting information into memory."
Explanation :

Answer: A) getting information into memory. Explanation: Encoding refers to the getting information into memory.

Q: Cheque deposited but not cleared means 2474 0

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Answer :
Explanation :

A Bank Reconciliation Statement is a statement prepared periodically by a customer to explain the divergence (difference) between the bank balance as per cash book and the bank balance as per Pass Book. It clearly shows the two differing balances and the outstanding items which causes the balances to disagree. The objective of preparing such a statement is to know the causes of differences between the two balances and pass necessary correcting or adjusting entries in the books of the firm. But it is to be noted that some differences are automatically adjusted. For example - A cheque that has been sent for collection, but not yet collected, causes a difference between the balance as shown by the pass book and the balance as shown by the cash book, but no adjusting entry is required in the cash book for such a difference because, the bank will credit the firm’s account as soon as the cheque is collected.

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