IIT JEE Practice Question and Answer
8Q: Is yeast a fungus or bacteria? 1583 05b5cc669e4d2b4197774bf4c
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Answer :
Explanation :
Yeast belongs to members of the Kingdom Fungi. Yeast are single-celled microorganisms that are classified, along with molds and mushrooms in Fungi family. Yeasts are evolutionally diverse and are therefore classified into two separate phyla, Ascomycota or sac fungi and Basidiomycota or higher fungi, that together form the subkingdom Dikarya.
Q: In general, which is the cause of a sea breeze? 1583 05b5cc636e4d2b4197774ba34
5b5cc636e4d2b4197774ba34- 1Pressurefalse
- 2Specific heattrue
- 3Heatfalse
- 4All the abovefalse
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Answer : 2. "Specific heat"
Explanation :
Answer: B) Specific heat Explanation: The usual cause of sea breeze is the difference in specific heat capacity between land and water Land heats and cools more quickly than water. What is the cause of a sea breeze? The air over the land is warmed and rises, to a greater temperature than that over the sea. This produces a convection current, with cooler air flowing in from over the sea to replace that rising from the land. At night the land cools more than the sea, so the action reverses to produce a land-breeze, blowing off the land.
Q: Which elements are most abundant in living organisms? 1583 05b5cc698e4d2b4197774c60e
5b5cc698e4d2b4197774c60e- 1oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorustrue
- 2carbon, potassium, iron, magnesium, hydrogen, and nitrogenfalse
- 3hydrogen, carbon, calcium, potassium, oxygen, and phosphorusfalse
- 4oxygen, calcium, phosphorus, sodium, hydrogen, and carbonfalse
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Answer : 1. "oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus"
Explanation :
Answer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus Explanation: Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium, sulphur and phosphorus.
Q: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1582 05b5cc76ae4d2b4197774fe4f
5b5cc76ae4d2b4197774fe4f- 132true
- 240false
- 316false
- 430false
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Answer : 1. "32"
Explanation :
Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P. S.P. of P articles = Rs. 40. Profit = Rs. (40 - P) Now, Gain% = ProfitC.P×100 = 40-PP×100 Here 40-PP×100= 25 -->P = 32.
Q: A teacher multiplies 987 by a certain number and obtains 556781 as her answer. If in the answer, both 6 and 7 are wrong but the other digits are correct, then the correct answer will be 1582 05b5cc754e4d2b4197774fb8b
5b5cc754e4d2b4197774fb8b- 1553681false
- 2555181false
- 3556581false
- 4555681true
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Answer : 4. "555681"
Explanation :
Answer: D) 555681 Explanation: Given number is 987 = 3 x 7 x 47. So, required number must be divisible by each one of 3, 7, 47. None of the numbers in 553681 and 555181 are divisible by 3. While 556581 is not divisible by 7.Correct answer is 555681.
Q: What is the first step when supervising detainee operations? 1582 05b5cc622e4d2b4197774b7d3
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Answer :
Explanation :
The first step is to disarm and secure detainees when supervising detainee operations.
Q: What happens during the process of translation? 1582 05b5cc63de4d2b4197774baee
5b5cc63de4d2b4197774baee- 1Transfer RNA is made from messenger RNAfalse
- 2Copies of DNA molecules are madefalse
- 3The cell uses information from messenger RNA to produce proteinstrue
- 4Messenger RNA is made from DNAfalse
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Answer : 3. "The cell uses information from messenger RNA to produce proteins"
Explanation :
Answer: C) The cell uses information from messenger RNA to produce proteins Explanation: Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins. In short, during the process of translation source language text is conveyed to destination language.
Q: Sensitive data is always classified. 1582 05b5cc64ae4d2b4197774bc44
5b5cc64ae4d2b4197774bc44- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: FALSE. Sensitive data is NOT always classified. Sensitive information is data that must be protected from unauthorized access to safeguard the privacy or security of an individual or organization. There are three main types of sensitive information: 1. Personal information 2. Business information 3. Classified information Data is "Classified" based on the damage that might result from unauthorized disclosure. Some data is Sensitive, but will not necessarily do harm to the country if released publicly - such as PII- which could do harm to individuals if released but not necessarily the country.

