CO2 dissociates from carbaminohaemoglobin
Question: CO2dissociates from carbaminohaemoglobin when a. pCO2is high pO2is low b. pO2is high and pCO2is low c. pCO2and pO2are equal d. None of the above Solution: Option (b)pO2is high and pCO2 is low is the answer...
Read More →Respiratory process is regulated by certain specialized
Question: Respiratory process is regulated by certain specialized centres in the brain. One of the following centres can reduce the inspiratory duration upon stimulation a. Medullary inspiratory centre b. Pneumotaxic centre c. Apneustic centre d. Chemosensitive centre Solution: Option (b)Pneumotaxic centreis the answer....
Read More →Incidence of Emphysema – a respiratory disorder
Question: Incidence of Emphysema a respiratory disorder is high in cigarette smokers. In such cases a. The bronchioles are found damaged b. The alveolar walls are found damaged c. The plasma membrane is found damaged d. The respiratory muscles are found damaged Solution: Option (b)The alveolar walls are found damagedis the answer....
Read More →Which of the following statements is incorrect regarding
Question: Which of the following statements is incorrect regarding respiratory system? a. Each terminal bronchiole give rise to a network of bronchi. b. the alveoli are highly vascularised. c. The lungs are covered by a double-layered membrane. d. The plecral fluid reduces friction on the lung surface. Solution: Option (d)The plecral fluid reduces friction on the lung surface is the answer....
Read More →Mark the incorrect statement in context to O2 binding to Hb
Question: Mark the incorrect statement in context to O2 binding to Hb a. Higher pH b. Lower temperature c. Lower pCO2 d. Higher PO2 Solution: Option (d)Higher PO2is the answer....
Read More →A person breathes in some volume of air by forced
Question: A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is a. Total lung capacity b. Tidal volume c. Vital capacity d. Inspiratory capacity Solution: Option (c)Vital capacityis the answer....
Read More →Mark the true statement among
Question: Mark the true statement among the following with reference to normal breathing a. Inspiration is a passive process where as expiration is active b. Inspiration is a active process where as expiration is passive c. Inspiration and expiration are active processes d. Inspiration and expiration are passive processes Solution: Option (b)Inspiration is a active process where as expiration is passive is the answer....
Read More →It is known that exposure to carbon monoxide
Question: It is known that exposure to carbon monoxide is harmful to animals because a. It reduces CO2 transport b. It reduces O2 transport c. It increases CO2 transport d. It increases O2 transport Solution: Option (b)It reduces O2 transport is the answer....
Read More →Differentiate the following with respect to x:
Question: Differentiate the following with respect to x: $\sqrt{\sin x}$ Solution: To Find: Differentiation NOTE : When 2 functions are in the product then we used product rule i.e $\frac{\mathrm{d}(\mathrm{u}, \mathrm{v})}{\mathrm{dx}}=\mathrm{V} \frac{\mathrm{du}}{\mathrm{dx}}+\mathrm{u} \frac{\mathrm{dv}}{\mathrm{dx}}$ Formula used: $\frac{d}{d x}(\sqrt{\sin n u})=\frac{1}{2 \sqrt{\operatorname{sinn} u}} \times \frac{d}{d x}(\operatorname{sinnu}) \times \frac{d}{d x}(n u)$ and $\frac{d x^{n}}...
Read More →A person suffers punctures in his chest cavity
Question: A person suffers punctures in his chest cavity in an accident without any damage to the lungs. Its effect could be a. Reduced breathing rate b. Rapid increase in breathing rate c. No change in respiration d. Cessation of breathing Solution: Option (d)Cessation of breathing is the answer....
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int \frac{1}{1+\sqrt{x}} d x$ Solution: $x=t^{2}$ $\mathrm{d}(\mathrm{x})=2 \mathrm{t} \cdot \mathrm{dt}$ $\mathrm{dx}=2 \mathrm{t} \cdot \mathrm{dt}$ Substituting $\mathrm{t}$ and dt we get $\Rightarrow \int \frac{2 t \cdot d t}{1+t}$ $\Rightarrow 2 \int \frac{t d t}{1+t}$ Add and subtract 1 from numerator $\Rightarrow 2 \int \frac{t+1-1}{1+t} d t$ $\Rightarrow 2\left(\int \frac{t+1}{t+1} d t-\int \frac{1}{1+t} d t\right)$ $\Rightarrow 2\left(\int d...
Read More →Regarding the functions of our respiratory system,
Question: Regarding the functions of our respiratory system, mark the wrong entry. a. Humidifies the air b. Warms up the air c. Exchange of gases d. Cleans up the air Solution: Option (d)Cleans up the airis the answer....
Read More →Respiration in insects is called direct because
Question: Respiration in insects is called direct because a. The cell exchange O2/ CO2 directly with the air in the tubes b. The tissues exchange O2/ CO2 directly with coelomic fluid c. The tissues exchange O2/ CO2 directly with the air outside through body surface d. Tracheal tubes exchange O2/ CO2 directly with the haemocoel which then exchange with tissues Solution: Option (d)Tracheal tubes exchange O2/ CO2 directly with the haemocoel which then exchange with tissues is the answer....
Read More →Differentiate the following with respect to x:
Question: Differentiate the following with respect to x: $e^{\cot x}$ Solution: To Find: Differentiation NOTE : When 2 functions are in the product then we used product rule i.e $\frac{\mathrm{d}(\mathrm{u} \cdot \mathrm{v})}{\mathrm{dx}}=\mathrm{V} \frac{\mathrm{du}}{\mathrm{dx}}+\mathrm{u} \frac{\mathrm{dv}}{\mathrm{dx}}$ Formula used: $\frac{d}{d x}\left(e^{a}\right)=e^{a} \times \frac{d a}{d x}$ and $\frac{d x^{n}}{d x}=n x^{n-1}$ Let us take $y=e^{\cot x}$ So, by using the above formula, we...
Read More →Differentiate the following with respect to x:
Question: Differentiate the following with respect to x: $e^{x^{2}}$ Solution: To Find: Differentiation NOTE : When 2 functions are in the product then we used product rule i.e $\frac{d(u, v)}{d x}=v \frac{d u}{d x}+u \frac{d v}{d x}$ Formula used: $\frac{d}{d x}\left(e^{a^{t}}\right)=e^{a^{t}} \times \frac{d}{d x}\left(a^{t}\right)$ and $\frac{d x^{n}}{d x}=n x^{n-1}$ Let us take $y=e^{x^{2}}$ So, by using the above formula, we have $\frac{d}{d x} e^{x^{2}}=e^{x^{2}} \times \frac{d}{d x}\left(x...
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int \frac{4 x+3}{\sqrt{2 x^{2}+3 x+1}} d x$ Solution: Assume, $2 x^{2}+3 x+1=t$ $d\left(x^{2}+x+1\right)=d t$ $(4 x+3) d x=d t$ Substituting $t$ and dt in above equation we get $\Rightarrow \int \frac{1}{\sqrt{t}} \mathrm{dt}$ $\Rightarrow \int \mathrm{t}^{-1 \backslash 2} \cdot \mathrm{dt}$ $\Rightarrow 2 \mathrm{t}^{1 \backslash 2}+\mathrm{c}$ But $t=2 x^{2}+3 x+1$ $\Rightarrow 2\left(2 x^{2}+3 x+1\right)^{1 / 2}+c$...
Read More →Differentiate the following with respect to x:
Question: Differentiate the following with respect to x: $\tan ^{3} x$ Solution: To Find: Differentiation NOTE : When 2 functions are in the product then we used product rule i.e $\frac{d(u, v)}{d x}=v \frac{d u}{d x}+u \frac{d v}{d x}$ Formula used: $\frac{d}{d x}\left(\tan ^{a} n u\right)=\operatorname{atan}^{a-1} n u \times \frac{d(\tan n u)}{d x} \times \frac{d(n u)}{d x}$ and $\frac{d x^{n}}{d x}=n x^{n-1}$ Let us take $y=\tan ^{3} x$ So, by using the above formula, we have $\frac{d}{d x} \...
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int(4 x+2) \sqrt{x^{2}+x+1} d x$ Solution: Here $(4 x+2)$ can be written as $2(2 x+1)$ Now assume, $x^{2}+x+1=t$ $d\left(x^{2}+x+1\right)=d t$ $(2 x+1) d x=d t$ $\Rightarrow \int 2(2 x+1) \sqrt{x^{2}+x+1} d x$ $\Rightarrow \int 2 \sqrt{t} d t$ $\Rightarrow \int 2 t^{1 / 2} \cdot d t$ $\Rightarrow \frac{4 \mathrm{t}^{\frac{3}{2}}}{3}+\mathrm{C}$ But $t=x^{2}+x+1$ $\Rightarrow \frac{4\left(x^{2}+x+1\right)^{3 / 2}}{3}+C$...
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int \frac{x^{3}}{\left(x^{2}+1\right)^{3}} d x$ Solution: Assume $x^{2}+1=t$ $\Rightarrow d\left(x^{2}+1\right)=d t$ $\Rightarrow 2 x d x=d t$ $\Rightarrow \mathrm{xdx}=\frac{\mathrm{dt}}{2}$ $x^{3}$ can be write as $x^{2} \cdot x$ $\therefore$ Now the given equation becomes $\Rightarrow \int \frac{x^{2} \cdot x d x}{\left(x^{2}+1\right)^{3}}$ $x^{2}+1=t \Rightarrow x^{2}=t-1$ $\Rightarrow \int \frac{(t-1) d t}{2 t^{3}}$ $\Rightarrow \frac{1}{2} \int...
Read More →Explain the process of digestion in the buccal
Question: Explain the process of digestion in the buccal cavity with a note on the arrangement of teeth. Solution: Two functions are performed by the buccal cavity. One is mastication of food which is chewing and another one is swallowing. The food which is eaten by us will be mixed with saliva and lubricates the food and cheering process breaks the food into smaller pieces. Digestion of carbohydrates starts in the buccal cavity. The food is mixed with saliva which contains salivary amylase. Thi...
Read More →Discuss the role of hepatopancreatic complex
Question: Discuss the role of hepatopancreatic complex in the digestion of carbohydrate, protein and fat components of food. Solution: The hepatopancreatic complex plays a major role in the digestion of carbohydrates, proteins and fats The liver secretes bile juice. Bile helps in emulsification of fats. Bile also provides an alkaline medium which is useful for working of enzymes present in the small intestine.The pancreatic juice contains inactive enzymes trypsinogen, chymotrypsinogen, procarbox...
Read More →Discuss mechanisms of absorption.
Question: Discuss mechanisms of absorption. Solution: (i) Simple Diffusion: Small amounts of monosaccharide like glucose, amino acids and some electrolytes like chloride ions are absorbed by simple diffusion (ii) Facilitated Transport: The transport of amino acids which is absorbed with the help of carriers like sodium ions. (iii) Transport of water depends on the osmotic gradient. (iv) Transport of Fatty acids and glycerol...
Read More →Differentiate the following with respect to x:
Question: Differentiate the following with respect to x: $\cot ^{2} x$ Solution: To Find: Differentiation NOTE : When 2 functions are in the product then we used product rule i.e $\frac{d(u \cdot v)}{d x}=v \frac{d u}{d x}+u \frac{d v}{d x}$ Formula used: $\frac{d}{d x}\left(\cot ^{a} n u\right)=\operatorname{acot}^{a-1}(n u) \times \frac{d}{d x}(\cot n u) \times \frac{d}{d x}(n u)$ and $\frac{d x^{n}}{d x}=n x^{n-1}$ Let us take $y=\cot ^{2} x$ So, by using the above formula, we have $\frac{d}{...
Read More →What are the various enzymatic types of glandular
Question: What are the various enzymatic types of glandular secretions in our gut helping digestion of food? What is the nature of end products obtained after complete digestion of food? Solution: Secretion from gastric glands Secretions in Liver Secretions from the small intestine The nature of end products obtained after complete digestion of food is as follows: Dipeptides Amino acids (presence of dipeptidase) Maltose Glucose + Glucose (presence of maltase) Lactose Glucose + Fructose (presence...
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int \tan ^{3 / 2} x \sec ^{2} x d x$ Solution: Assume $\tan x=t$ $d(\tan x)=d t$ $\sec ^{2} x d x=d t$ $\therefore$ Substituting $\mathrm{t}$ and dt in given equation we get $\Rightarrow \int t^{\frac{3}{2}} d t$ $\Rightarrow \frac{2 t^{\frac{5}{2}}}{5}+c$ But $t=\tan x$ $\Rightarrow \frac{2 \tan ^{\frac{5}{2}} x}{5}+c$...
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