Recent questions tagged aipmt

$ \alpha $-helix refers to

asked Mar 27, 2014 by thanvigandhi_1

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Amyloprotein is a polymer of

asked Mar 27, 2014 by thanvigandhi_1

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When hemiacetal reacts with alcohol the product is

asked Mar 27, 2014 by thanvigandhi_1

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The constituent units of sucrose are

asked Mar 27, 2014 by thanvigandhi_1

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Fructose has/is

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The amino acids are the end products of the digestion of

asked Mar 27, 2014 by thanvigandhi_1

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Maltose on hydrolysis gives

asked Mar 27, 2014 by thanvigandhi_1

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The linkage which binds various amino acids in secondary structure of proteins is

asked Mar 27, 2014 by thanvigandhi_1

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Which of the following is an example of aldohexose?

asked Mar 27, 2014 by thanvigandhi_1

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Which of the following does not respond to basic hydrolysis?

asked Mar 26, 2014 by thanvigandhi_1

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Which of the following gives positive carbylamine test?

asked Mar 26, 2014 by thanvigandhi_1

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p-chloro aniline and anilinium hydrochoride can be distinguished by

asked Mar 26, 2014 by thanvigandhi_1

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Which of the following is correct order of basisity of amines in gas phase?

asked Mar 26, 2014 by thanvigandhi_1

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Which of the following is most basic

asked Mar 26, 2014 by thanvigandhi_1

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Nitro benzene can be prepared from benzene by using a mixture of Conc $H_2SO_4$ and CONC $HNO_3$.In te mixture Nitric acid acts as

asked Mar 26, 2014 by thanvigandhi_1

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Predict the product in the following sequence

asked Mar 26, 2014 by thanvigandhi_1

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The reaction of $CHCl_3$ and alcoholic $KOH$ with para toluidine gives

asked Mar 26, 2014 by thanvigandhi_1

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The correct order of increasing basic nature of following bases is

asked Mar 26, 2014 by thanvigandhi_1

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Toluene is nitrated and the resulting product is reduced with tin and $ HCl$. The product so obtained is diazotized and then treated with cuprous bromide. The reaction mixture so formed contains

asked Mar 26, 2014 by thanvigandhi_1

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Which will not undergo diazotization?

asked Mar 26, 2014 by thanvigandhi_1

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Which of the following on reduction with $LiAlH_4$ Yields a secondary amine?

asked Mar 26, 2014 by thanvigandhi_1

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In the elimination reaction given below the alkene formed is

asked Mar 26, 2014 by thanvigandhi_1

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Which of the following chemicals are used to prepare MIC which caused Bhopal gas tragedy?

asked Mar 26, 2014 by thanvigandhi_1

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Identify A, B, C in order in the picture - What happens at the point D (choose the appropriate option) :

asked Mar 26, 2014 by pady_1

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The embryo with 8 to 16 blastomeres is called a _______ (e), which continues to divide and transforms into (g) as it moves further into the uterus. The blastomeres are arranged into an outer layer called _ (J) and an inner group of cells attached to trophoblast called the __________ (I). What is (h) and what does it imply?

asked Mar 26, 2014 by pady_1

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What are (a) and (b)? The mitotic division starts as the zygote moves through the isthmus of the oviduct called _ towards the uterus and forms 2, 4, 8, 16 daughter cells called ____ .

asked Mar 26, 2014 by pady_1

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Small amounts of urea enter the _____ (K) of _ (J) which is transported back to the interstitium by the _____ (L). The above described transport of substances facilitated by the special arrangement of Henle’s loop and vasa recta is called the counter current mechanism that helps to maintain a concentration gradient in the _ (C). Presence of such interstitial gradient helps in an easy passage of water from the _______ (L).

asked Mar 26, 2014 by pady_1

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___ (D) is transported by the (E) of _ (J) which is exchanged with the ____ (G) of _ (I). (D) is returned to the interstitium by the (H) of __ (I).

asked Mar 26, 2014 by pady_1

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The proximity between the _ and , as well as the in them help in maintaining an increasing osmolarity from 300 mOsmolL–1 in the _ (A) to about 1200 mOsmolL–1 in the _____ (C). This gradient is mainly caused by _ and ________ .

asked Mar 26, 2014 by pady_1

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Each nephron has two parts – the glomerulus and the renal tubule. Glomerulus is a tuft of capillaries formed by the _______ (A). Blood from the glomerulus is carried away by an (B). The renal tubule begins with (C), which encloses the glomerulus. alongwith _ (C), is called the (D). The tubule continues further to form a highly coiled network – __ (E).

asked Mar 26, 2014 by pady_1

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A hairpin shaped __________ (C) is the next part of the tubule which has (D) and _ (E). The _ (H) emerging from the (I) forms a fine capillary network around the renal tubule called the peritubular capillaries. A minute vessel of this network runs parallel to the (C) forming _______ (J) .

asked Mar 26, 2014 by pady_1

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The product of the following reaction is

asked Mar 26, 2014 by thanvigandhi_1

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Each nephron has two parts – the glomerulus and the renal tubule. The renal tubule begins with (A) and continues further to form a highly coiled network – (B) . (C) is the next part of the tubule whose ascending limb continues as another highly coiled tubular region called (F). The (F) of many nephrons open into a straight tube called _________ (G) .

asked Mar 26, 2014 by pady_1

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Inside the kidney there are two zones, an _____ (A) and an _ (B). The medulla is divided into a few conical masses (C) projecting into the . The cortex extends in between the medullary pyramids as ____ (E).

asked Mar 26, 2014 by pady_1

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The (I) and (J) branches give rise to minute fibres throughout the ventricular musculature of the respective sides and are called . These fibres alongwith (I) and (J) are known as ______ (L) .

asked Mar 26, 2014 by pady_1

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A bundle of nodal fibres, ________ continues from the (D) which passes through the to emerge on the top of the _ (H) and immediately divides into a (I) and (J).

asked Mar 26, 2014 by pady_1

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A patch of nodal tissue present in the _ of the (C) is called the (B). Another mass of nodal tissue seen in the called the ____________ (D) .

asked Mar 26, 2014 by pady_1

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A thin, muscular wall called the separates the right and the left atria, whereas a thick-walled, (H) , separates the left and the right ventricles. The atrium and the ventricle of the same side are also separated by a thick fibrous tissue called the ___ .

asked Mar 26, 2014 by pady_1

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Regarding ECG - choose the incorrect answer :

asked Mar 26, 2014 by pady_1

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What are C and D in order? What does the looped part represent?

asked Mar 26, 2014 by pady_1

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What are A and B in order ? What does the looped part represent?

asked Mar 26, 2014 by pady_1

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During contraction : 1. Actin filaments are pulled towards the centre of ‘A’ band. The ‘Z’ line attached to these actins are also pulled inwards thereby causing a shortening of the sarcomere. 2. ‘I’ bands get reduced, whereas the ‘A’ bands retain the length Regarding 1 and 2 : What are A,B and C in order?

asked Mar 26, 2014 by pady_1

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Which of the following is important for muscle contraction and nerve transmission ?

asked Mar 26, 2014 by pady_1

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The HMM component projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as _____ (D) . The _ (C) is an active ATPase enzyme and has binding sites for _ (B) and _______ (A).

asked Mar 26, 2014 by pady_1

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Structure of Contractile Proteins (Myosin) : Many monomeric proteins called _ (E) constitute one thick filament. Each (E) has two important parts, a (C) with a and , the former being called the and the latter, the ____ .

asked Mar 26, 2014 by pady_1

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Structure of Contractile Proteins (Actin) : Each actin filament is made of two __ (C) helically wound to each other. Each (C) is a polymer of monomeric . Two filaments of another protein, _ (B) also run close to the (C) throughout its length. In the resting state a subunit of ___ (A) masks the active binding sites for myosin on the actin filaments

asked Mar 26, 2014 by pady_1

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The portion of the muscle fibre between two successive _ (A) is considered as the functional unit of contraction and is called a (E) . In a resting state, the edges of thin filaments on either side of the thick filaments partially overlap the free ends of the thick filaments leaving the central part of the thick filaments. This central part of thick filament, not overlapped by thin filaments is called the (D) .

asked Mar 26, 2014 by pady_1

2 answers

In the centre of each _______ (C) is an elastic fibre called (A) which bisects it. The thin filaments are firmly attached to the _ (A). The thick filaments in the (B) are also held together in the middle of this band by a thin fibrous membrane called _ . The (B) and ___ (C) are arranged alternately throughout the length of the myofibrils.

asked Mar 26, 2014 by pady_1

1 answer

Each myofibril has alternate dark and light bands on it. The light bands contain and is called _ (C), whereas the dark band called (B) contains ___ .

asked Mar 26, 2014 by pady_1

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Each organised skeletal muscle in our body is made of a number of ________ (A) held together by a common collagenous connective tissue layer called _ . Each __ (A) contains a number of _ (B). Each is _ (B) lined by the plasma membrane called __________ (C).

asked Mar 26, 2014 by pady_1

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