Description : Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs (a) as bicarbonate ions (b) in the form of dissolved gas molecules (c) by binding to RBC (d) as carbamino - haemoglobin.
Last Answer : (a) as bicarbonate ions
Description : `%` of daily destruction of RBC `:-`
Last Answer : `%` of daily destruction of RBC `:-` A. `1%` B. `5%` C. `10%` D. `20%`
Description : How many % of adults primarily use their smartphones to access content/information? A. 0.85 B. 0.9 C. 0.95 D. 0.97
Last Answer : C. 0.95
Description : If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%
Last Answer : (A) 2.3% and 84.1%
Description : Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called (A) Fumes (B) Mists (C) Smoke (D) Aerosols
Last Answer : (D) Aerosols
Description : Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called (1) Mists (2) Fumes (3) Aerosols (4) Smoke
Last Answer : Aerosols
Description : 260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air ... is (A) 24.2 % (B) 18.2 % (C) 53.8 % (D) None of these
Last Answer : Answer: Option B
Description : Some amount out of Rs. 10000 was lent at 6 % p.a. and the remaining at 4% p.a. If the total simple interest from both the fractions in 5 years was Rs. 1500, then the ratio of the 2 different amount is A)1:3 B)3:1 C)1:4 D)3:2
Last Answer : A)1:3
Description : Durga invested Rs X for 5 months and Y for remaining time. Moushsree invested Rs Y for 9.months and X for the remaining time. At the end of the year profits are in the ratio 4:5. Then find what % of X is Y? A) 6.2 % B) 7.69% C) 5.25% D) 3.2%
Last Answer : Answer: B) Durga investment =5X+7Y Moushsree investment =9Y+3X (5X+7Y)/(9Y+3X)=4/5 X/Y=1/13 *100=7.69%
Description : Usha purchased 10 fans for Rs 1000 each. She spent Rs 4000 on the maintenance of all fans. She sold five of them for Rs 1500 each and the remaining for 1100 each. Then the total gain or loss % is?
Last Answer : Total actual CP = Rs. (1000*10+4000)=Rs. 14000 Total Sp = Rs.(5* 1500+5*1100) =Rs. 13000 Loss= cp-sp=1000 Loss %= (1000/14000)*100 = 7.14%
Description : Gokul purchases 10 goats at Rs. 1500 each. 1 goat died. He sold 2 goats at 5% loss, at what rate he should sale the remaining goat, so as to gain a Profit of 10 % on the total Cost?
Last Answer : Selling Price with Profit of 10 % of total cost = 1500*10*110/100 = 16500 Selling Price of 2 goat with 5% loss= 3000*95/100 = 2850 Difference = 16500-2850= 13650 So rate of the goats for selling to gain 10% profit on total = 13650/7 = Rs. 1950
Description : on analyzing the result of an competitive exam the teacher found that the average for the entire the class was 69 marks. If we say that average of 10 % of the students scored 77 marks and average of 28 % of the ... marks of the remaining students of the class A) 67.54 B) 68.26 C) 66.91 D) 69.06
Last Answer : D) average of entire class = 69marks average of 28 % of the students = 66 marks average of 10% of the students = 77 marks then % of remaining students = (100- 10 - 28) = 62% let the average of 62% of the ... (62*x)+770+1848= 6900 62 * x = 6900-770-1848 62*x = 4282 x = 69.06
Description : A group of students of arithmetic mean of the marks in a test was 63. The brightest 30% of them secured a mean score of 70 and the dullest 15% a mean score of 41. The mean score of remaining 55 % is A) 63.675 B) 61.785 C) 65.181 D) 66.67
Last Answer : C) Let the requird mean score be ‘x’ Then (30*70)+(15*41)+55x = 63*100 2100+615+55x=6300 2715+55x=6300 55x=3585 X=65.181
Description : In an examination, 900 students appeared. Out of these students; 56 % got first division, 27 % got second division and the remaining just passed. Assuming that no student failed; find the number of students who just passed. a) 225 b) 153 c) 245 d) 148 e) 298
Last Answer : Answer: B The number of students with first division = 56 % of 900 = 56/100 × 900 = 50400/100 = 504 And, the number of students with second division = 27 % of 900 = 27/100 × 900 =24300/100 = 243 Therefore, the number of students who just passed = 900 – (504 + 243) = 900- 747 = 153
Description : Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC. Reason `:` RBC can filter out due to small dia
Last Answer : Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC ... . D. If both Assertion & Reason are false.
Description : Minute, circular discs floating in the blood, which carry oxygen to the tissues, and carbon dioxide away from them, are called (a) White blood corpuscles (WBC) (b) Red blood corpuscles (RBC) (c) Monophylls (d) Erythrocytes
Last Answer : Ans:(b)
Description : _______, found in blood, is responsible for oxygen transportation. (1) WBC (2) Platelets (3) RBC (4) Plasma
Last Answer : (3) RBC Explanation: Red Blood Cells (RBCs) are responsible for carrying oxygen and carbon dioxide in the blood. Also known as erythrocytes, they are specialized cells that circulate through the body and deliver oxygen to tissues.
Description : People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude to 5400 metres have around 8 million. This is because at high altitude ... required amount of O2 to survive (d) there is more UV radiation which enhances RBC production.
Last Answer : (c) atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive
Description : How is oxygen and carbon dioxide transported in human beings ? -Biology
Last Answer : (i) Transport of oxygen : Haemoglobin present in the blood takes up the oxygen from the air in the lungs. It carries the oxygen to tissues which are deficient in oxygen before releasing it. (ii) ... the dissolved form in our blood plasma to lungs. Here it diffuses from blood to air in the lungs.
Description : The amount of oxygen transported to tissue by one litre of blood under strenous exercise condition is approximately :-
Last Answer : The amount of oxygen transported to tissue by one litre of blood under strenous exercise condition is approximately :- ... . 50 ml C. 15 ml D. 150 ml
Description : Oxygen in our blood is transported by a protein named?
Last Answer : haemoglobin
Description : What is true about RBCs in humans? (a) They carry about 20-25 percent of CO2. (b) They transport 99.5 percent of O2. (c) They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma. (d) They do not carry CO2 at all.
Last Answer : (a) They carry about 20-25 percent of CO2.
Description : Which of the following happens in the common cockroach? (a) Malpighian tubules are excretory organs projecting out from the colon. (b) Oxygen is transported by haemoglobin in blood. (c) Nitrogenous excretory product is urea. (d) The food is ground by mandibles and gizzard.
Last Answer : (d) The food is ground by mandibles and gizzard.
Description : An organic compound contain 69% carbon and 4.8% hydrogen, the remaining being oxygen. Calculate the masses of carbon dioxide and water produced when 0.20g of this substance is subjected to complete combustion.
Last Answer : Calculation of mass of CO2 produced: Mass of compound =0.20g %C =12 x C 69=12*mass of CO2 formed*100/44*0.2 Mass of CO2 formed =69*44*.2/12*100 = 0.506g Similarly, % H =2* mass of H2Oformed*100/18* ... compound 4.8=2* mass of H2Oformed*100/18* 0.2 Mass of H2Oformed =4.8*18*0.2/2*100 =0.0864g
Description : Explain higher and lower calorific value of a coal having following composition by mass Carbon 81%,Hydrogen 7%, Oxygen 8%,Nitrogen 2.5%, sulphur 1.5% and remaining is ash
Last Answer : Carbon C = 81% = 0.81 Hydrogen = H2 = 7% = 0.07 Oxygen = O2 = 8% = 0.08 Nitrogen = N = 2.5% = 0.025 Sulphur = S =1.5% = 0.015 Ash = 2.5% = 0.025 Dulong's formula: H.C.V. of coal = 33800 C + 144500 ... = H.C.V.- 9H2 x 2442 KJ / Kg = 36187.5- 9 x 0.07 x 2442 L.C.V. of coal = 34649.04 KJ / Kg
Description : Pick out the wrong statement. (A) High concentration of oxygen in flue gas means high stack loss (B) Gaseous fuels require the least % excess air for complete combustion (C) The ratio of fixed carbon to ... coal is called its 'fuel ratio' (D) Calorific value of natural gas is more than that of LPG
Last Answer : (D) Calorific value of natural gas is more than that of LPG
Description : How many molecules of hemoglobin are in the average RBC? -Biology
Last Answer : answer:
Description : What is the life of RBC in human blood? -Do You Know?
Description : What is the lifetime of red blood corpuscle (RBC)? -General Knowledge
Last Answer : approximately 120 days Human red blood cells are formed mainly in the bone marrow and are believed to have an average life span of approximately 120 days.
Description : Presence of RBC in urine is called
Last Answer : Presence of RBC in urine is called A. Anuria B. Haematuria C. Glycosuria D. Ketonuria
Description : The percentage of Hb in RBC is `:`
Last Answer : The percentage of Hb in RBC is `:` A. `48%` B. `34%` C. `10%` D. `20%`
Description : Average life span of human RBC is
Last Answer : Average life span of human RBC is A. 50 days B. 70 days C. 120 days D. 220 days
Description : In mature RBC, nucleus is present in
Last Answer : In mature RBC, nucleus is present in A. Frog B. Rabbit C. Both 1 and 2 D. Neither in frog nor in rabbit
Description : In normal healthy female, the number of RBC `//` `m m^(3)` of blood is `:`
Last Answer : In normal healthy female, the number of RBC `//` `m m^(3)` of blood is `:` A. 6.5-7.0 million B. 5.5-6.0 million C. 4.5-5.0 million D. 3.5-4.0 million
Description : Which organ is considered as "Graveyard of RBC" where most of them are destroyed by macrophages Which of the following organs can be called as a sort
Last Answer : Which organ is considered as "Graveyard of RBC" where most of them are destroyed by macrophages Which of the ... A. Heart B. Liver C. Spleen D. Lungs
Description : Which one of the following is the main graveyard of RBC `:-`
Last Answer : Which one of the following is the main graveyard of RBC `:-` A. Bone marrow B. Spleen C. Liver D. Kidney
Description : Abnormal increase in number of RBC in blood is called
Last Answer : Abnormal increase in number of RBC in blood is called A. Anaemia B. Polycythemia C. Leukemia D. Sarcoma
Description : In mammlian RBC, the percentage of haemoglobin is
Last Answer : In mammlian RBC, the percentage of haemoglobin is A. `10%` B. `20%` C. `30%` D. `48%`
Last Answer : Presence of RBC in urine is called A. Proteinura B. Haematuria C. Alkaptouria D. Uraemia
Description : Ratio WBC `//` RBC in human blood `:-`
Last Answer : Ratio WBC `//` RBC in human blood `:-` A. `1:100` B. `1:200` C. `500:1` D. `1:500`
Description : Mammlian RBC are `:-`
Last Answer : Mammlian RBC are `:-` A. Biconcave, circular, non Nucleated B. Biconcave, Nucleated C. Oval Nucleated D. None
Description : Mature RBC contains `:-`
Last Answer : Mature RBC contains `:-` A. Enzymes of TCA cycle B. Glycolytic enzyme C. Enzymes of Kreb cycle D. All of above
Description : Max. concentration of Hb normally found in RBC `:-`
Last Answer : Max. concentration of Hb normally found in RBC `:-` A. `3%` B. `10%` C. `36%` D. `46%`
Description : Mature mammalian RBC does not contain `:-`
Last Answer : Mature mammalian RBC does not contain `:-` A. Membrane bounded cell organelles B. Carbonic anhydrase C. Haemoglobin D. Enzyme of glycolyte pathway
Description : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves -
Last Answer : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves ... efflux of `HCO_(3)^(c-)` ions from RBC
Description : The chloride content of RBC will be higher than that of plasma in `:-`
Last Answer : The chloride content of RBC will be higher than that of plasma in `:-` A. Systemic ... and pulmonary arteries D. Sstemic veins and pulmonary veins
Description : Which of the following statement `//` s is `//` are correct ? A- A high concentration of carbonic anhydrase is present in RBC. B- Minute quantities of
Last Answer : Which of the following statement `//` s is `//` are correct ? A- A high concentration of carbonic anhydrase is ... and D C. A,B,C and D D. Only A
Description : At high altitude , RBC of human blood will
Last Answer : At high altitude , RBC of human blood will A. increase in number B. Decraese in number C. Decrease in size D. Increase in size