Railway Board offers opulent and revered job posts to its aspirants. And it is not every year that we get the notification from Railway offering a good number of vacant seats to the multitude aspirants. But the current year 2018 brought a pleasant surprise with almost 1,27,278 seats to be filled by the valid candidates. Opportunity is here but you have to welcome it with a provident strategy.
Q1. ‘Dialysis’ is related to?
'डायलिसिस' संबंधित है?
(a) Liver /जिगर
(b) Kidney /गुर्दा
(c) Eyes /आंखें
(d) Brain / मस्तिष्क
'डायलिसिस' संबंधित है?
(a) Liver /जिगर
(b) Kidney /गुर्दा
(c) Eyes /आंखें
(d) Brain / मस्तिष्क
Ans.(b)
Sol. Kidneys remove excess organic molecules from the blood. They serve the body as a natural filter of the blood and remove water-soluble wastes, such as urea and ammonium and they are also responsible for the reabsorption of water, glucose and amino acids.
Sol. Kidneys remove excess organic molecules from the blood. They serve the body as a natural filter of the blood and remove water-soluble wastes, such as urea and ammonium and they are also responsible for the reabsorption of water, glucose and amino acids.
Q2. Where is urea separated from the blood?
यूरिया रक्त से कहां अलग होता है?
(a) Intestine /आंत
(b) Stomach /पेट
(c) Spleen /प्लीहा
(d) Kidney /गुर्दा
Show Answer
Ans.(d)
Sol. The process, ultrafiltration occurs at the barrier between the blood and the filtrate in the renal capsule in the kidney. The kidneys remove urea and other toxic wastes from the blood, forming a dilute solution called urine in the process.
Sol. The process, ultrafiltration occurs at the barrier between the blood and the filtrate in the renal capsule in the kidney. The kidneys remove urea and other toxic wastes from the blood, forming a dilute solution called urine in the process.
Q3. The average blood flow through kidneys per minute is
प्रति मिनट गुर्दे के माध्यम से औसत रक्त प्रवाह है:
(a) 1000 cc
(b) 1200 cc
(c) 200 cc
(d) 500 cc
Show Answer
Ans.(b)
Sol. Kidneys are the most important organ in our body. Our kidneys purify around 1500 litre of blood and convert it into approximately 1.5 litre urine per day. 1200 ml of blood flows through both the kidneys per minute and out of it 1 ml of urine is formed per minute.
Sol. Kidneys are the most important organ in our body. Our kidneys purify around 1500 litre of blood and convert it into approximately 1.5 litre urine per day. 1200 ml of blood flows through both the kidneys per minute and out of it 1 ml of urine is formed per minute.
Q4. When kidneys fail to function, there is accumulation of-
जब गुर्दे कार्य करने में विफल हो जाता हैं, तो इसमें किसका संचय होता है-
(a) Fats in the body /शरीर में वसा
(b) Proteins in the body /शरीर में प्रोटीन
(c) Sugar in the blood /रक्त में शुगर
(d) Nitrogenous waste products in the blood /रक्त में नाइट्रोजनयुक्त अपशिष्ट पदार्थ
Show Answer
Ans.(d)
Sol. Metabolism refers to all of the body’s chemical process, the digestion of food and the elimination of waste. The main nitrogenous wastes are urea and uric acid. Urea is formed from gluconeogenesis of amino acids. Urea is one of the primary components of urine.
Q5. Vitamin B6 is called? Sol. Metabolism refers to all of the body’s chemical process, the digestion of food and the elimination of waste. The main nitrogenous wastes are urea and uric acid. Urea is formed from gluconeogenesis of amino acids. Urea is one of the primary components of urine.
विटामिन B6 को क्या कहा जाता है?
(a) Niacin/ नियासिन
(b) Tocopherol/ टोकोफेरोल
(c) Phyridoxin/फईरिडोक्सिन
(d) Ratinol / रेटिनॉल
Show Answer
Ans.(c)
Sol. Vitamin B6, also called pyridoxine, is a water-soluble nutrient that is part of the B vitamin family. B6 vitamins, help support adrenal function, help calm and maintain a healthy nervous system, and are necessary for key metabolic processes.
Sol. Vitamin B6, also called pyridoxine, is a water-soluble nutrient that is part of the B vitamin family. B6 vitamins, help support adrenal function, help calm and maintain a healthy nervous system, and are necessary for key metabolic processes.
Q6. The radiant energy absorbed by the plants result in-
पौधों द्वारा अवशोषित दीप्तिमान ऊर्जा का क्या परिणाम है
(a) Photolysis of water / पानी का फोटोलाईसिस
(b) Oxidation of chlorophyll / क्लोरोफिल का ऑक्सीकरण
(c) Reduction of oxygen / ऑक्सीजन की कमी
(d) Oxidation of carbon dioxide / कार्बन डाइऑक्साइड का ऑक्सीकरण
Show Answer
Ans.(a)
Sol. Photolysis of water is the outcome of radiant energy taken by plants in which hydrogen ions and oxygen gas are made by the breaking of H_2 O molecules.
Sol. Photolysis of water is the outcome of radiant energy taken by plants in which hydrogen ions and oxygen gas are made by the breaking of H_2 O molecules.
Q7. Plants receive their nutrients mainly from ?
पौधों को मुख्य रूप से अपने पोषक तत्व किससे प्राप्त होते हैं?
(a) atmosphere/ वायुमंडल
(b) chlorophyll/ क्लोरोफिल
(c) light/ प्रकाश
(d) soil / मिट्टी
पौधों को मुख्य रूप से अपने पोषक तत्व किससे प्राप्त होते हैं?
(a) atmosphere/ वायुमंडल
(b) chlorophyll/ क्लोरोफिल
(c) light/ प्रकाश
(d) soil / मिट्टी
Show Answer
Ans.(d)
Sol. Plants recieve their nutrients mainly from soil because it is soil which contains humus, water and minerals for proper growth of the plant.
Sol. Plants recieve their nutrients mainly from soil because it is soil which contains humus, water and minerals for proper growth of the plant.
Q8. Most highly intelligent mammals are :
सबसे उच्च बुद्धिमान स्तनधारी कौन हैं:
(a)Elephants/ हाथी
(b)Whales/ व्हेल
(c)Dolphins/ डाल्फिन
(d)Kangaroos / कंगारू
सबसे उच्च बुद्धिमान स्तनधारी कौन हैं:
(a)Elephants/ हाथी
(b)Whales/ व्हेल
(c)Dolphins/ डाल्फिन
(d)Kangaroos / कंगारू
Show Answer
Ans.(c)
Sol. Most highly intelligent mammals are dolphins.
Sol. Most highly intelligent mammals are dolphins.
Q9. What is a mushroom?
एक मशरूम क्या है?
(a) Fungi / कवक
(b) Plant / पौधा
(c) Animal / जीव
(d) Bacteria / जीवाणु
एक मशरूम क्या है?
(a) Fungi / कवक
(b) Plant / पौधा
(c) Animal / जीव
(d) Bacteria / जीवाणु
Show Answer
Ans.(a)
Sol. Mushroom is a fungus which is used as a vegetable for food.
Sol. Mushroom is a fungus which is used as a vegetable for food.
Q10. Noscapine is obtained from-
नोस्कापाइन किससे प्राप्त किया जाता है
(a) Poppy / खसखस
(b) Basii / बेसी
(c) Eucalyptus / युकलिप्टुस
(d) Ephedra / ईफेड्रा
Show Answer
Ans.(a)
Sol. Noscapine is obtained from poppy.
Sol. Noscapine is obtained from poppy.
Q11. Heroin is obtained from
हेरोइन किससे प्राप्त होता है?
(a) Indian hemp / भारतीय भांग
(b) Opium poppy/ अफीम पोस्ता
(c) Tobacco / तंबाकू
(d) Areca nut / सुपारी
हेरोइन किससे प्राप्त होता है?
(a) Indian hemp / भारतीय भांग
(b) Opium poppy/ अफीम पोस्ता
(c) Tobacco / तंबाकू
(d) Areca nut / सुपारी
Show Answer
Ans.(b)
Sol. Heroin is obtained from the Opium poppy plant. Opium poppy is the dried latex obtained from the opium poppy. Opium latex contains approximately 12% of the analgesic alkaloid morphine, which is processed chemically to produce heroin and other synthetic opioids for medicinal use and for the illegal drug trade.
Sol. Heroin is obtained from the Opium poppy plant. Opium poppy is the dried latex obtained from the opium poppy. Opium latex contains approximately 12% of the analgesic alkaloid morphine, which is processed chemically to produce heroin and other synthetic opioids for medicinal use and for the illegal drug trade.
Q12. Which one among the following is not a good source of nutritional calcium?
निम्नलिखित में से क्या पोषण कैल्शियम का एक अच्छा स्रोत नहीं है?
(a) Rice/ चावल
(b) Ragi/ रागी
(c) Skimmed milk/ मखनिया दूध
(d) Egg/ अंडा
निम्नलिखित में से क्या पोषण कैल्शियम का एक अच्छा स्रोत नहीं है?
(a) Rice/ चावल
(b) Ragi/ रागी
(c) Skimmed milk/ मखनिया दूध
(d) Egg/ अंडा
Show Answer
Ans.(a)
Sol. White rice is about 90 percent carbohydrate, 8 percent protein and 2 percent fat.
Sol. White rice is about 90 percent carbohydrate, 8 percent protein and 2 percent fat.
Q13. Percentage of water in plasma is-
प्लाज्मा में पानी का प्रतिशत कितना है-
(a) 60%
(b) 70%
(c) 80%
(d) 92%
Show Answer
Ans.(d)
Sol. Plasma is the liquid portion of blood-protein-salt solution which is 90 to 92% of water.
Sol. Plasma is the liquid portion of blood-protein-salt solution which is 90 to 92% of water.
Q14. Enzyme is a-
एनज़िम क्या है-
(a) Vitamin / विटामिन
(b) Bacterium / जीवाणु
(c) Bio-catalyst / जैव उत्प्रेरक
(d) Virus/वाइरस
एनज़िम क्या है-
(a) Vitamin / विटामिन
(b) Bacterium / जीवाणु
(c) Bio-catalyst / जैव उत्प्रेरक
(d) Virus/वाइरस
Show Answer
Ans.(c)
Sol. Enzymes are biological molecules (proteins) that act as biocatalysts and help complex reactions occur everywhere in life. These are basically proteins and perform chemical transformations on organic compounds.
Sol. Enzymes are biological molecules (proteins) that act as biocatalysts and help complex reactions occur everywhere in life. These are basically proteins and perform chemical transformations on organic compounds.
Q15. Which one of the following groups of compounds is called ‘accessory dietary factor’?
निम्नलिखित में से किस यौगिक समूह को एक 'सहायक आहार का कारक' कहा जाता है?
(a) Fats /वसा
(b) Hormones / हार्मोन
(c) Proteins / प्रोटीन
(d) Vitamins / विटामिन
निम्नलिखित में से किस यौगिक समूह को एक 'सहायक आहार का कारक' कहा जाता है?
(a) Fats /वसा
(b) Hormones / हार्मोन
(c) Proteins / प्रोटीन
(d) Vitamins / विटामिन
Show Answer
Ans.(d)
Sol. Frederick Gowland Hopkins was the first scientist to elucidate the “accessory food factor,” the idea that food contains trace amounts of substances essential for nutrition. Accessory food factors later came to be called vitamins.
Sol. Frederick Gowland Hopkins was the first scientist to elucidate the “accessory food factor,” the idea that food contains trace amounts of substances essential for nutrition. Accessory food factors later came to be called vitamins.
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