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. Which organelle in the cell, other than nucleus contains DNA?
नाभिक के अलावा, कोशिका में कौन से अंगक में डीएनए शामिल होते हैं?
(a) Centriole /सेंट्रियल
(b) Golgi apparatus /गोल्गी तंत्र
(c) Lysosome /लियोसोम
(d) Mitrochondria /माइटोकॉन्ड्रिया
नाभिक के अलावा, कोशिका में कौन से अंगक में डीएनए शामिल होते हैं?
(a) Centriole /सेंट्रियल
(b) Golgi apparatus /गोल्गी तंत्र
(c) Lysosome /लियोसोम
(d) Mitrochondria /माइटोकॉन्ड्रिया
S1. Ans.(d)
Sol. DNA is found in the mitochondria and chloroplast cell organ of cells except for the nucleus. Fridrick Meischer (1869) discovered DNA and the double helix model of DNA was given by James Watson and Francis Krick.
Sol. DNA is found in the mitochondria and chloroplast cell organ of cells except for the nucleus. Fridrick Meischer (1869) discovered DNA and the double helix model of DNA was given by James Watson and Francis Krick.
Q2. Which one of the following statements is correct?
निम्नलिखित में से कौन सा कथन सही है?
(a) Prions are the smallest free-living cells/ प्रायन सबसे छोटी मुक्त जीवित कोशिकाएं हैं
(b) The cell wall of Mycoplasmas is made up of amino sugars/ माइकोप्लामास की कोशिका भित्ति एमिनो शर्करा से बनी है
(c) Viroids consist of single-stranded RNA molecules / वायरोइड एकल स्टैण्डर्ड RNA अणु से बने होते हैं
(d) Rickettsias lack cell wall / रिक्ट्सियास में कोशिका भित्ति की कमी है
Show Answer
S2. Ans.(c)
Sol. Viroids are the smallest infectious pathogens known. They are solely composed of a short strand of circular, single-stranded RNA without protein coat. … The unique properties of viroids have been recognized by the International Committee for Virus Taxonomy with the creation of a new order of subviral agents.
Sol. Viroids are the smallest infectious pathogens known. They are solely composed of a short strand of circular, single-stranded RNA without protein coat. … The unique properties of viroids have been recognized by the International Committee for Virus Taxonomy with the creation of a new order of subviral agents.
Q3 Plasma membrane is built up of
प्लाज्मा झिल्ली किसके द्वारा निर्मित है?
(a) Protein / प्रोटीन
(b) Lipid / लिपिड
(c) Carbohydrate / कार्बोहाइड्रेट
(d) (a),(b) and (c) /(a),(b) और (c)
Show Answer
S3. Ans.(d)
Sol. The cell membrane (also known as plasma membrane) is a biological membrane that separates the interior of cell from the outside environment. The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins.
Sol. The cell membrane (also known as plasma membrane) is a biological membrane that separates the interior of cell from the outside environment. The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins.
Q4. Weight of our body is mostly made of
हमारे शरीर का वजन अधिकतर किससे बना है
(a) From bones / हड्डियों
(b) Parts of body / शरीर के अंग
(c) Parts of skin / त्वचा के अंग
(d) From water / पानी
Show Answer
S4. Ans.(d)
Sol. The amount of water in the human body ranges from 50-75%. The average adult human body is 50-65% water, averaging around 57-60%. The percentage of water in infants is much higher typically around 75-78% water, dropping to 65% by one year of age. Water is the best solvent in nature.
Sol. The amount of water in the human body ranges from 50-75%. The average adult human body is 50-65% water, averaging around 57-60%. The percentage of water in infants is much higher typically around 75-78% water, dropping to 65% by one year of age. Water is the best solvent in nature.
Q5. The percentage of water in an adult human body is around-
एक वयस्क मानव शरीर में पानी का प्रतिशत लगभग कितना होता है?
(a) 10%
(b) 30%
(c) 65%
(d) 75%
Show Answer
S5. Ans.(c)
Sol. The amount of water in the human body ranges from 50-75%. The average adult human body is 50-65% water, averaging around 57-60%. The percentage of water in infants is much higher typically around 75-78% water, dropping to 65% by one year of age. Water is the best solvent in nature.
Sol. The amount of water in the human body ranges from 50-75%. The average adult human body is 50-65% water, averaging around 57-60%. The percentage of water in infants is much higher typically around 75-78% water, dropping to 65% by one year of age. Water is the best solvent in nature.
Q6. When the left ventricle in the human heart contracts, the blood moves to the?
जब मानव हृदय में बायाँ वेंट्रिकल सिकुड़ता है तब रक्त किस ओर चलता है?
(a) Brain/मस्तिष्क
(b) Pulmonary artery/फेफड़ा-धमनी
(c) Aorta/बड़ी धमनी
(d) Lungs/फेफड़े
Show Answer
S6.Ans.(c)
Sol. When the left ventricle in the human heart contracts, the blood moves to the Arota. Blood leaves the heart through the aortic valve, into the aorta and to the body.
Sol. When the left ventricle in the human heart contracts, the blood moves to the Arota. Blood leaves the heart through the aortic valve, into the aorta and to the body.
Q7. Glaucoma is a disease of the?
ग्लूकोमा ________ कि एक बीमारी है
(a) Skin(त्वचा)
(b) Lungs(फेफड़े)
(c) Liver(जिगर)
(d) Eyes(आंखें)
ग्लूकोमा ________ कि एक बीमारी है
(a) Skin(त्वचा)
(b) Lungs(फेफड़े)
(c) Liver(जिगर)
(d) Eyes(आंखें)
Show Answer
S7.Ans.(d)
Sol. Glaucoma is a disease that damages your eye’s optic nerve. It usually happens when fluid builds up in the front part of your eye. That extra fluid increases the pressure in your eye, damaging the optic nerve.
Sol. Glaucoma is a disease that damages your eye’s optic nerve. It usually happens when fluid builds up in the front part of your eye. That extra fluid increases the pressure in your eye, damaging the optic nerve.
Q8. Haemoglobin contains the metal?
हैमोग्लोबिन में शामिल धातु है:
(a) Copper/कॉपर
(b) Molybdenum/मोलिब्डेनम
(c) Iron/आयरन
(d) Magnesium/मैग्नेशियम
हैमोग्लोबिन में शामिल धातु है:
(a) Copper/कॉपर
(b) Molybdenum/मोलिब्डेनम
(c) Iron/आयरन
(d) Magnesium/मैग्नेशियम
Show Answer
S8.Ans.(c)
Sol. Hemoglobin is made up of globin proteins and an iron(metal) rich compound called heme found in RBC involved in transport of oxygen. Each heme group contain iron which is responsible for binding of oxygen.
Sol. Hemoglobin is made up of globin proteins and an iron(metal) rich compound called heme found in RBC involved in transport of oxygen. Each heme group contain iron which is responsible for binding of oxygen.
Q9. The life span of RBC of man is?
मनुष्य के आरबीसी का जीवन काल है –
(a) 120 days
(b) 150 days
(c) 180 days
(d) 190 days
मनुष्य के आरबीसी का जीवन काल है –
(a) 120 days
(b) 150 days
(c) 180 days
(d) 190 days
Show Answer
S9.Ans.(a)
Sol. The life span of RBC of man is 120 days.
Sol. The life span of RBC of man is 120 days.
Q10. Cellulose is the chief constituent of?
सेलूलोज़ _______ का मुख्य घटक है:
(a) Cell wall/कोशिका भित्ति
(b) Cell membrane/कोशिका झिल्ली
(c) Secondary wall of xylemजाइलेम की माध्यमिक भित्ति
(d) Body wall of insects/कीड़ों की शारीरिक भित्ति
Show Answer
S10.Ans.(a)
Sol. Cellulose is the substance that makes up most of a plant’s cell walls.
Sol. Cellulose is the substance that makes up most of a plant’s cell walls.
Q11. Which of the following diseases is caused by a virus?
निम्नलिखित में से कौन सी बीमारी वायरस के कारण होती है.
(a) Poliomyelitis / पोलियोमेलाइटिस
(b) Malaria /मलेरिया
(c) Whooping cough / काली खांसी
(d) Ring worm / दाद
निम्नलिखित में से कौन सी बीमारी वायरस के कारण होती है.
(a) Poliomyelitis / पोलियोमेलाइटिस
(b) Malaria /मलेरिया
(c) Whooping cough / काली खांसी
(d) Ring worm / दाद
Show Answer
S11. Ans.(a)
Sol. Poliomyelitis, often called polio or infantile paralysis, is an acute, viral disease spread from person to person, primarily via the fecal-oral route.
Sol. Poliomyelitis, often called polio or infantile paralysis, is an acute, viral disease spread from person to person, primarily via the fecal-oral route.
Q12. Who amongst the following was awarded Nobel Prize for path breaking contributions to develop treatment against Parkinson’s disease?
पार्किंसंस रोग के विरुद्ध उपचार के विकास के लिए निम्नलिखित में से किसने नोबेल पुरस्कार से सम्मानित किया?
(a) Arvid Carlsson/ अरविद कार्ल्ससन
(b) Walter Kohn/ वॉल्टर कोहन
(c) Robert B. Laughlin/ रॉबर्ट बी लोहलीन
(d) Ferid Murad/ फ़ेरिड मुराड
पार्किंसंस रोग के विरुद्ध उपचार के विकास के लिए निम्नलिखित में से किसने नोबेल पुरस्कार से सम्मानित किया?
(a) Arvid Carlsson/ अरविद कार्ल्ससन
(b) Walter Kohn/ वॉल्टर कोहन
(c) Robert B. Laughlin/ रॉबर्ट बी लोहलीन
(d) Ferid Murad/ फ़ेरिड मुराड
Show Answer
S12. Ans.(a)
Sol. Arvid Carlsson is a Swedish neuropharmacologist who is best known for his work with the neurotransmitter dopamine and its effects in Parkinson’s disease.
Sol. Arvid Carlsson is a Swedish neuropharmacologist who is best known for his work with the neurotransmitter dopamine and its effects in Parkinson’s disease.
Q13. Night blindness results from the deficiency of-
रात की अंधापन निम्न में से किसकी कमी की वजह होता है –
(a) Glucose/ ग्लूकोज
(b) Vitamin-E/ विटामिन-ई
(c) Vitamin-B2/ विटामिन बी-2
(d) Vitamin-A/ विटामिन-ए
Show Answer
S13. Ans.(d)
Sol. Cause of night blindness is a deficiency of retinol, or vitamin A, found in fish oils, liver and dairy products. Nyctalopia also called “Night Blindness” is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases.
Sol. Cause of night blindness is a deficiency of retinol, or vitamin A, found in fish oils, liver and dairy products. Nyctalopia also called “Night Blindness” is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases.
Q14. Adherent mucoid alkaline substance covering the inner lining of stomach is to:
पेट के अंदरूनी आवरण को कवर करने वाला आंशिक मूकोइड क्षारीय पदार्थ ____________ के लिए होता है:
(a) digest starch/ डाइजेस्ट स्टार्च
(b) act against bacteria/ बैक्टीरिया के खिलाफ कार्य
(c) prevent the action of pepsin of mucosa/ म्यूकोसा के पेप्सिन की कार्रवाई को रोकना
(d) prevent viral infection/ वायरल संक्रमण रोकना
पेट के अंदरूनी आवरण को कवर करने वाला आंशिक मूकोइड क्षारीय पदार्थ ____________ के लिए होता है:
(a) digest starch/ डाइजेस्ट स्टार्च
(b) act against bacteria/ बैक्टीरिया के खिलाफ कार्य
(c) prevent the action of pepsin of mucosa/ म्यूकोसा के पेप्सिन की कार्रवाई को रोकना
(d) prevent viral infection/ वायरल संक्रमण रोकना
Show Answer
S14. Ans.(c)
Sol. The primary function of the adherent mucus gel layer is a structural one to create a stable, unstirred layer to support surface neutralization of acid and act as a protective physical barrier against luminal pepsin.
Sol. The primary function of the adherent mucus gel layer is a structural one to create a stable, unstirred layer to support surface neutralization of acid and act as a protective physical barrier against luminal pepsin.
Q15. Which was the first antibiotic?
निम्न में से कौन सा पहला एंटीबायोटिक था?
(a) Terramycin/टेरामायसिन
(b) Neomycin/नियोमायसिन
(c) Penicilin/पेनिसिलिन
(d) Streptomycin/ स्ट्रेप्टोमाइसिन
निम्न में से कौन सा पहला एंटीबायोटिक था?
(a) Terramycin/टेरामायसिन
(b) Neomycin/नियोमायसिन
(c) Penicilin/पेनिसिलिन
(d) Streptomycin/ स्ट्रेप्टोमाइसिन
Show Answer
S15. Ans.(c)
Sol. Penicillin is a group of antibiotics derived from Penicillium fungi. They include penicillin G, procaine penicillin, benzathine penicillin, and penicillin V. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious diseases.
Sol. Penicillin is a group of antibiotics derived from Penicillium fungi. They include penicillin G, procaine penicillin, benzathine penicillin, and penicillin V. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious diseases.
