IIT JEE Practice Question and Answer

Q: Wild animals are not considered a natural resource. 1679 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE
    Correct
    Wrong
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Answer : 2. "FALSE"
Explanation :

Answer: B) FALSE Explanation: The given statement is False. Wild animals are considered as a natural resource. Natural resources are resources taken from nature to satisfy our needs. These natural resources are: 1) Air 2) Water 3) Soil 4) Plants 5) Animals 6) Minerals 7) Forests 8) Natural Gas 9) Coal 10) Petroleum.

Q: Unresolved dissonance is a characteristic of 2031 0

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Answer :
Explanation :

When the tension is unresolved, we have unresolved dissonance. Unresolved dissonance is a characteristic of the baroque music. The general characteristics of Baroque music is movement, energy, and tension.

Q: A seven letter word containing thousands of letters is what? 1762 0

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Answer :
Explanation :

It is a Postbox or a Mailbox which contains thousands of letters or mails or messages.

Q: What are the three main parts of a Eukaryotic cell? 798 0

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Answer :
Explanation :

Eukaryotic cells are found in plants, animals and unicellular organisms.   The three main part of Eukaryotic cells are 1. Plasma membrane or membrane-bound organelles which carries out the cell functions. 2. Nucleus which contains the cell's DNA (and) 3. Cytoplasm which is a jelly like fluid interior of the cell.

Q: Which of the following is a polymer? 1274 0

  • 1
    Glycerol
    Correct
    Wrong
  • 2
    Amino acid
    Correct
    Wrong
  • 3
    Nucleic acid
    Correct
    Wrong
  • 4
    Fatty acid
    Correct
    Wrong
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Answer : 3. "Nucleic acid"
Explanation :

Answer: C) Nucleic acid Explanation: Nucleic acid is a polymer among the given options.

Q: Which of the following is an example of polygenic inheritance? 1659 0

  • 1
    Skin pigmentation in humans
    Correct
    Wrong
  • 2
    Huntingtonʹs disease in humans
    Correct
    Wrong
  • 3
    White and purple flower color in peas
    Correct
    Wrong
  • 4
    The ABO blood groups in humans
    Correct
    Wrong
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Answer : 1. "Skin pigmentation in humans"
Explanation :

Answer: A) Skin pigmentation in humans Explanation: Polygenic inheritance involves the determination of a particular phenotypic characteristic by many genes, called polygenes(group of genes influencing a quantitative characteristic), each having a small effect individually. Height and skin colour in humans are examples of Polygenic characters.

Q: Find the odd man out in the following number series? 5, 4, 9, 32, 273 3079 0

  • 1
    4
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    32
    Correct
    Wrong
  • 4
    273
    Correct
    Wrong
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Answer : 3. "32"
Explanation :

Answer: C) 32 Explanation: The given number series follows 5, 4, 9, 32, 308 pattern that   5 5 x 1 - 1 = 4 4 x 3 - 3 = 9 9 x 5 - 5 = 40 (not equals to 32) 40 x 7 - 7 = 273   Hence, the odd man in the given number series is 32.

Q: Which path through the carbon cycle is possible? 1613 0

  • 1
    Animal ----> Plant ----> Atmosphere
    Correct
    Wrong
  • 2
    Plant ----> Animal ----> Atmosphere
    Correct
    Wrong
  • 3
    Atmosphere ----> Plant ----> Animal
    Correct
    Wrong
  • 4
    Plant ----> Atmosphere -----> Animal
    Correct
    Wrong
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Answer : 2. "Plant ----> Animal ----> Atmosphere"
Explanation :

Answer: B) Plant ----> Animal ----> Atmosphere Explanation: During daylight hours, plants capture carbon dioxide from the atmosphere and use it to make carbohydrates which is stored as starch in the plant. Animals feed on the plants and extract the carbohydrates through their digestive system. The carbohydrates, namely glucose, are used by the animals for production of ATP through cellular respiration.   Cellar respiration in the animals produces carbon dioxide as a waste product. The carbon dioxide is released into the atmosphere, from where it is again captured by plants and the cycle is repeated.   Hence, option B) Plant ----> Animal ----> Atmosphere is the path possible in carbon cycle.

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