General Science Practice Question and Answer
8 Q: Bacteria is classified as____.
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610a661b99705662832a6a6e- 1Eukaryote organismfalse
- 2Prokaryote organismtrue
- 3Both a and bfalse
- 4None of a and bfalse
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Answer : 2. "Prokaryote organism"
Q: Which planet spins the fastest?
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610a5640997056628329f01e- 1Marsfalse
- 2Jupitertrue
- 3Mercuryfalse
- 4Venusfalse
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Answer : 2. "Jupiter"
Q: Tobacco Addiction is due to
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60fe38ba81fb4616a656366f- 1Cocainefalse
- 2Caffeinefalse
- 3Nicotinetrue
- 4Histaminefalse
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Answer : 3. "Nicotine"
Q: Which statement is correct in the following?
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60fe385481fb4616a65632b4- 1All metals are tensile.false
- 2All non-metals are tensile.false
- 3Generally metals are tensile.true
- 4Some non-metals are tensile.false
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Answer : 3. "Generally metals are tensile."
Q: Which is not a source of air pollution?
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60fe37e6f8986716bdf69e7d- 1Automobilesfalse
- 2Industriesfalse
- 3Solid Wastetrue
- 4Dust Particlesfalse
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Answer : 3. "Solid Waste"
Q: Which of the following statements is not true about metabolism? 5592 05b5cc601e4d2b4197774b46c
5b5cc601e4d2b4197774b46c- 1Younger people generally have a slower metabolism than adults.true
- 2Basal metabolism is the amount of energy needed for sustaining life.false
- 3Basal metabolism is measured by the amount of calories burned when your body is inactive.false
- 4Metabolism is influenced by numerous factors, such as heredity and age.false
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Answer : 1. "Younger people generally have a slower metabolism than adults."
Explanation :
Answer: A) Younger people generally have a slower metabolism than adults. Explanation: Metabolism 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. Younger people have faster metabolism than adults. Hence, the given statement 'Younger people generally have a slower metabolism than adults' is FALSE.
Q: Which best describes genetic mutations? 1508 05b5cc68be4d2b4197774c3a1
5b5cc68be4d2b4197774c3a1- 1Genetic mutations that cause diseases are always passed on to offspring.false
- 2Some inherited genetic mutations can be good for the offspring.true
- 3Different genetic mutations cause few forms of cancer.false
- 4Somatic mutations can be inherited from parents or acquired during life.false
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Answer : 2. "Some inherited genetic mutations can be good for the offspring."
Explanation :
Answer: B) Some inherited genetic mutations can be good for the offspring. Explanation: Mutations are accidents in the copying of DNA. A genetic mutation is a random change in the DNA that is passed on further generations of cells and or organisms. Genetic mutations are accidental changes in the DNA in the germ cells or early in the formation of the embryo. These changes if they are in the germ cell will be passed on to other organisms formed by sexual reproduction or asexual reproduction. An example would be the golden delicious apple. A lost of genetic information due to a mutation resulted in a different color of fruit. Genetic mutations that cause diseases are not always passed on to offspring.
Q: Which of the following statements about water is false? 2094 05b5cc601e4d2b4197774b462
5b5cc601e4d2b4197774b462- 1There is extensive intramolecular hydrogen bonding in the condensed phase.true
- 2Water is oxidized to oxygen during photosynthesis.false
- 3Ice formed by heavy water sinks in normal water.false
- 4Water can act both as an acid and as a base.false
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Answer : 1. "There is extensive intramolecular hydrogen bonding in the condensed phase."
Explanation :
Answer: A) There is extensive intramolecular hydrogen bonding in the condensed phase. Explanation: Water possess intermolecular hydrogen bonding in the condensed phase. Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.