IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What are the end products of cellular respiration? 1281 05b5cc62fe4d2b4197774b96f
5b5cc62fe4d2b4197774b96f- 1ATP, Glucosefalse
- 2Glucose, Oxygenfalse
- 3Oxygen, Waterfalse
- 4ATP, Watertrue
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उत्तर : 4. "ATP, Water"
व्याख्या :
Answer: D) ATP, Water Explanation: Cellular respiration is the three-step process by which cells make ATP using glucose and oxygen. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP, waste products include carbon dioxide and water.
प्र: If 1 1 1 1 = R 2 2 2 2 = T 3 3 3 3 = E 4 4 4 4 = N Then 5 5 5 5 = ? 1281 05b5cc699e4d2b4197774c72e
5b5cc699e4d2b4197774c72e- 1Ytrue
- 2Zfalse
- 3Tfalse
- 4Xfalse
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उत्तर : 1. "Y"
व्याख्या :
Answer: A) Y Explanation: If you add all the terms of the LHS of equality, then the last letter of the sum written in words would give you the RHS. 1 + 1 + 1 + 1 = 4 = FOUR 2 + 2 + 2 + 2 = 8 = EIGHT 3 + 3 + 3 + 3 = 12 = TWELVE 4 + 4 + 4 + 4 = 16 = SIXTEEN So, following the same pattern. 5 + 5 + 5 + 5 = 20 = TWENTY That gives us our answer to 5 5 5 5 = "Y".
प्र: Plants are photosynthetic autotrophs. What does this mean? 1280 05b5cc662e4d2b4197774be95
5b5cc662e4d2b4197774be95- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Plants are photosynthetic autotrophs, which means that they are able to produce their own food through the process called photosynthesis. In photosynthesis, plants use light, water, and carbon dioxide to create glucose, which they convert to cellulose and use to make new cells. Hence, that is why, Plants are called photosynthetic autotrophs.
प्र: Each hemoglobin molecule can transport two molecules of oxygen. 1279 05b5cc699e4d2b4197774c689
5b5cc699e4d2b4197774c689- 1TRUEfalse
- 2FALSEtrue
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उत्तर : 2. "FALSE"
व्याख्या :
Answer: B) FALSE Explanation: FALSE. Each hemoglobin molecule can transport four molecules of oxygen. Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits. Heme the component of hemoglobin responsible for binding oxygen consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules, one molecule binds one molecule of oxygen and can bind up to four oxygen molecules.
प्र: Nipah virus outbreak in Bangladesh in the year 1278 05b5cc670e4d2b4197774c02a
5b5cc670e4d2b4197774c02a- 12001true
- 22006false
- 32012false
- 42015false
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उत्तर : 1. "2001"
व्याख्या :
Answer: A) 2001 Explanation: The first identification of Nipah virus as a cause of an outbreak of encephalitis was reported in 2001 in Meherpur district of Bangladesh. Since, then Outbreaks of the deadly Nipah virus has been recorded almost every year in selected districts of Bangladesh. Drinking raw date palm sap and contact with a case were identified as the major risk factors for acquiring the disease.
प्र: Which compound contains ionic bonds? 1278 05b5cc639e4d2b4197774baac
5b5cc639e4d2b4197774baac- 1CaOtrue
- 2CO2false
- 3NO2false
- 4NOfalse
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उत्तर : 1. "CaO"
व्याख्या :
Answer: A) CaO Explanation: An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom. Here in the given compounds, the compound that contains ionic bond is CaO, Calcium oxide.
प्र: A contractor undertake to finish a certain work in 124 days and employed 120 men. After 64 days, he found that he had already done 2/3 of the work. How many men can be discharged so that the work may finish in time ? 1277 05b5cc6cce4d2b4197774e16c
5b5cc6cce4d2b4197774e16c- 164false
- 262false
- 358false
- 456true
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उत्तर : 4. "56"
व्याख्या :
Answer: D) 56 Explanation: Days remaining 124 – 64 = 60 days Remaining work = 1 - 2/3 = 1/3 Let men required men for working remaining days be 'm' So men required = (120 x 64)/2 = (m x 60)/1 => m = 64 Men discharge = 120 – 64 = 56 men.
प्र: The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number ? 1277 05b5cc6dbe4d2b4197774e94b
5b5cc6dbe4d2b4197774e94b- 1270true
- 21270false
- 3350false
- 4720false
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उत्तर : 1. "270"
व्याख्या :
Answer: A) 270 Explanation: Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.

