IIT JEE Practice Question and Answer
8Q: ATP is a compound that is synthesized when 5764 05b5cc615e4d2b4197774b6c4
5b5cc615e4d2b4197774b6c4- 1digestive enzymes break amino acids into smaller piecesfalse
- 2energy stored in nitrogen is released froming amino acidsfalse
- 3energy is stored in chemical bonds is released during cellular respirationtrue
- 4chemical bonds between carbon atoms are formed by during photo synthesisfalse
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Answer : 3. "energy is stored in chemical bonds is released during cellular respiration"
Explanation :
Answer: C) energy is stored in chemical bonds is released during cellular respiration Explanation:
Q: If A + B = 2C and C + D = 2A, then 5756 05b5cc7b9e4d2b4197775096e
5b5cc7b9e4d2b4197775096e- 1A + C = B + Dtrue
- 2A + C = 2Dfalse
- 3A + D = B + Cfalse
- 4A + C = 2Bfalse
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Answer : 1. "A + C = B + D"
Explanation :
Answer: A) A + C = B + D Explanation: Given, A + B = 2C ----(i) C + D = 2A----(ii) Adding (i) and (ii) we get : A + B + C + D = 2C + 2A => B + D = A + C
Q: Thunder is to Lightning as Grape is to 5745 05b5cc6b8e4d2b4197774d67f
5b5cc6b8e4d2b4197774d67f- 1Winefalse
- 2Soilfalse
- 3Seedtrue
- 4Waterfalse
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Answer : 3. "Seed"
Explanation :
Answer: C) Seed Explanation: Lightning produces thunder just as a seed will eventually produce a grape.
Q: A person is asked to put in a basket one apple when ordered 'one', one guava when ordered 'two', one orange whe ordered 'three' and is asked to take out from the basket one apple and one guava both when ordered 'four'. The ordered sequence executed by the person is as follows : 1 2 3 3 2 1 4 2 3 1 4 2 2 3 3 1 4 1 1 3 2 3 4 1. How many apples will be there in the basket at the end of the above order sequence ? (a) 4 (b) 3 (c) 2 (d) 1 2. How many fruits will be there in the basket at the end of the above order sequence ? (a) 13 (b) 17 (c) 9 (d) 11 5696 05b5cc754e4d2b4197774fbc3
5b5cc754e4d2b4197774fbc3- Show AnswerHide Answer
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Answer :
Explanation :
1. Answer (c) Each time we order 1, one apple is added to the basket but each time when 4 is ordered, one apple is removed from it. Required number of apples = number of 1's - number of 4's = 6 - 4 = 2 2. Answer (d) Each time we order 1, 2 or 3, one fruit is added to the basket but when ever we order 4, two fruits are removed from it. Required number = Number of 1's + Number of 2's + Number of 3's - 2 x (Number of 4's) = 6 + 6 + 7 - (2x4) = 19 - 8 = 11.
Q: What is one benefit of lifelong physical activity? 5679 05b5cc64ae4d2b4197774bbf1
5b5cc64ae4d2b4197774bbf1- 1high blood pressurefalse
- 2increase in healthy eating habitsfalse
- 3high physiological agetrue
- 4prevention of weight gainfalse
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Answer : 3. "high physiological age"
Explanation :
Answer: C) high physiological age Explanation:
Q: Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue? 5678 05b5cc7f2e4d2b41977751eac
5b5cc7f2e4d2b41977751eac- 141false
- 240false
- 328true
- 427false
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Answer : 3. "28"
Explanation :
Answer: C) 28 Explanation: Three persons A, B, C can be arranged in a queue in six different ways, ie ABC, CBA, BAC, CAB, BCA, ACB. But since there are only 3 persons ahead of C, so C should be in front of the queue. Thus, there are only two possible arrangements, ie CBA and CAB. We may consider the two cases as under: Case I: ←3C↔8B↔5A→21 Clearly, number of persons in the queue = (3+1+8+1+5+1+21=) 40 Case II: ←3C A↔5B Number of persons between A and C = (8 - 6) = 2 ∵[C↔8B A→21B] Clearly number of persons in the queue = (3+1+2+1+21) = 28 Now, 28 < 40. So, 28 is the minimum number of persons in the queue.
Q: How many degrees will the minute hand move, in the same time in which the second hand move 4800 ? 5666 05b5cc6d8e4d2b4197774e746
5b5cc6d8e4d2b4197774e746- 180 degtrue
- 2160 degfalse
- 3140 degfalse
- 4135 degfalse
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Answer : 1. "80 deg"
Explanation :
Answer: A) 80 deg Explanation: As minute hand covers, 60 degrees Minute hand covers 4800/60 = 80°
Q: Boy, man, uncle, fireman, grandfather are... 5666 05b5cc6dee4d2b4197774ea51
5b5cc6dee4d2b4197774ea51- 1Feminine titlesfalse
- 2Masculine titlestrue
- 3Both Feminine and Masculine titlesfalse
- 4None of the abovefalse
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Answer : 2. "Masculine titles"
Explanation :
Answer: B) Masculine titles Explanation: As they are the titles of male gender, they are called as Masculine titles.