Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad
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Which of the following hormones in the body of animal is lipid-based in nature?
Explanation
Aldosterone is a steroid hormone derived from cholesterol and is lipid-soluble. Insulin, FSH and oxytocin are peptide/glycoprotein hormones and are not lipid-based.
Which of the following base pairing maintains the constant diameter of the DNA double helix as per Watson and Crick's model?
Explanation
Watson-Crick base pairing pairs a purine with a pyrimidine (A-T and G-C), which preserves the constant width of the DNA double helix. Purine–purine or pyrimidine–pyrimidine pairs would alter the helix diameter.
Which muscle type is under conscious control and is multinucleated?
Explanation
Skeletal muscle is under voluntary (conscious) control and its fibres are multinucleated. Smooth and cardiac muscles are involuntary; cardiac muscle cells typically have a single nucleus.
Which of the following connective tissue is completely avascular and heals slowly?
Explanation
Cartilage is avascular (lacks blood vessels), so nutrient delivery and repair are slow, leading to poor healing. Bone and most other connective tissues are vascularized.
Cardiac muscles are different from skeletal muscles because they:
Explanation
Cardiac muscle is striated like skeletal muscle but operates involuntarily. Skeletal muscle is striated and voluntary; cardiac cells are generally single-nucleated and connected by intercalated discs.
Which organelle give rise to primary lysosomes through budding in eukaryotic cells?
Explanation
Primary lysosomes are formed by budding from the Golgi apparatus, which packages hydrolytic enzymes into vesicles. The ER synthesizes proteins and lipids but lysosomal enzymes are processed through the Golgi.
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A mutation prevents proper disulphide bond formation in a fibrous protein, causing brittle nails and slow hair growth. Which of the following proteinaceous substance would be affected?
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In muscle fibers, T-tubules are extension of the sarcolemma that penetrate into the cell's interior. What is their main function during muscle contraction?
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Polysaccharides such as starch and glycogen are mainly used for:
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In chromosome, positively charged histone proteins are organized with negatively charged DNA. The positive charges of histone are due to an abundance of basic amino acids:
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Envelope in a virus is derived from
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Myelin sheath acts as;
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DNA/RNA probes are most commonly used as:
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The event that occurs first during skeletal muscle contraction?
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When genes are linked, they tend to:
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According to Morgan's experiment, which of the following is essential for detecting gene linkage accurately?
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The end of skeletal muscle attached with moveable bone is:
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Which of the following is common between aldosterone, sex hormone and cortisone ?
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Which one of the following organism is uricotolic with reference to excretion of nitrogenous compound?
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Ureotelism (removal of nitrogenous waste in the form of urea) is an adaptation to the:
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All of the following are the characteristics of limbic system EXCEPT:
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Sensory input from auditory and visual pathways, skin and within the body is received by _______ and distributed to ________
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According to the Lamarck theory of evolution, the organ that has not been used in several generations will:
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Which of the following statement is incorrect with reference to the enzyme action?
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The temperature of underground water remains constant due to:
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The shape of Adenovirus is:
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In human female normally ovulation occurs at day _____ of menstrual cycle.
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How many ATPs are produced during oxidative phase of glycolysis?
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Which of the following best describes the relationship between endoplasmic reticulum (ER) and Golgi apparatus?
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Osmotic gradient of inner medulla of kidney is increased by:
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Decreased level of FSH hormone during menstrual cycle triggers the release of:
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The digestive secretions from different parts of GIT have the ability to kill microbe present in the food. Which of the following best describes this role?
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A carrier mother for hemophilia and a normal father can produce:
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During ventricular systole, which pressure changes occur?
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Which cell type is essential for stimulating cell division of both B-cells and T-cells?
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The hormone, when overproduced can lead to hypercalcemia and stone formation is:
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The hormone, when overproduced can lead to hypercalcemia and stone formation is:
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Fibrocartilage is found in:
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Additional capillaries present in the juxtamedullary nephrons to form a loop of vessels are:
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Y-linked inheritance refers to which mode of the inheritance?
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If a colorblind lady marries a normal man, their children will be:
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All of the following properties of water are associated with its capillary action. EXCEPT:
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Which organelle serves as a packaging and a distribution center for molecules within the cells?
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Which of the following hormone is not produced in older women?
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Which lymphatic structure absorbs dietary fats in the intestine?
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The part of male reproductive system that maintains the temperature for sperm production is:
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After Liver transplant, doctors suppress the T-lymphocyte activity in patient. Why?
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How do the kidneys contribute to maintain normal blood calcium level?
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Nodes of Ranvier along the length of axons fibers allow:
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Arachidonic acid, which is the precursor molecule for prostaglandins is:
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Atrial walls are thinner as compared to ventricles because:
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A patient with a genetic disorder undergoes treatment where a normal gene is inserted into their cells. This is called
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Which of the following is a potential symptom of chronic renal failure?
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Arthritis is a disease that primarily affects the:
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The part of male reproductive system that maintains the temperature for sperm production is:
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After Liver transplant, doctors suppress the T-lymphocyte activity in patient. Why?
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How do the kidneys contribute to maintain normal blood calcium level?
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Nodes of Ranvier along the length of axons fibers allow:
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Arachidonic acid, which is the precursor molecule for prostaglandins is:
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Atrial walls are thinner as compared to ventricles because:
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A patient with a genetic disorder undergoes treatment where a normal gene is inserted into their cells. This is called
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Which of the following is a potential symptom of chronic renal failure?
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Arthritis is a disease that primarily affects the
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Osmoreceptors that detect the osmotic pressure of blood are primarily located in the:
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Lamarck theory of evolution was rejected experimentally by:
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Which of the following characteristics is common among sucrose, lactose and maltose?
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Ribozymes are the biocatalysts that are made up of:
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The induced fit model differs from the Lock and Key model because the enzyme in this model:
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Which competitive inhibitor blocks the enzyme responsible for bacterial cell wall synthesis?
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Water commonly known as a universal solvent because:
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Which of the following structural change in water molecule leads to the low density of ice?
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Lamark theory of evolution was rejected experimentally by:
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Which of the following characteristics is common among sucrose, lactose and maltose?
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Ribozymes are the olurobiocatalysts that are made up of:
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The induced fit model differs from the Lock and Key model because the enzyme in this model:
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Which competitive inhibitor blocks the enzyme responsible for bacterial cell wall synthesis
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Water commonly known as a universal solvent because:
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Which of the following structural change in water molecule leads to the low density of ice?
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Reduction of carboxylic acid by using lithium aluminiumhydride produce
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In separate vessel of volume 2000 cm3 and 1500cm3, 6g of hydrogen and 28g of nitrogen are mixed in each vessel at 25°C, ammonia formed is? N2 + 3H2 ⇌ 2NH3
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The weakest intermolecular force present in liquid is?
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Orientation of molecule is more important in following cases except:
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Keeping temperature constant, if pressure is increased, density of gas will
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IUPAC name of chloroform is:
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Which among the following will react with ammonical cuprous chloride:
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Which of the following is not a crystalline solid?
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Number of electron with l=2 in an atom having atomic number 23 is:
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Orientation of molecule is more important in following cases except:
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Keeping temperature constant, if pressure is increased, density of gas will
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IUPAC name of chloroform is:
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Which among the following will react with ammonical cuprous chloride:
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Which of the following is not a crystalline solid?
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Number of electron with l=2 in an atom having atomic number 23 is:
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Reaction having high activation energy are:
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Which of the following reagents is used to convert benzene to 2-chloro methyl benzene?
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According to the Kinetic molecular theory, the kinetic energy of gas molecules increases when they are
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If the equilibrium expression of a reversible reaction is [C]2/[A][B] The balanced chemical equation should be
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Common name of 1,3 benzene diol is:
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How many sigma and pi bonds are present in maleic anhydride?
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Addition of three molecules of chlorine into benzene prove that benzene has
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Propyle is allowed to react with hydrochloric acid two times then final product is
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Diethyl ether and Methyl n-propyl ether are
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In the given reaction CH3OH -> HCOOH, oxidation state of carbon changes from:
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For endothermic reaction, enthalpy change is:
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The structure of four Chloroalkanes W X, Y and Z are shown: (CH3)2CHCH(Cl)CH3 (CH3)CH(Cl)CH2CH3 (CH3)3CHCl (CH3)2CHCH2Cl Select the Chloroalkane classified as teriary,
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The smallest repeating pattern from which the lattice is built in a crystalline solid is called
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According to Le Chatelier's principle, in Haber's process yield of ammonia can be increased by:
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Hyperbola is obtained when graph is plotted between:
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Highest energy for one quantum among radiation is:
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Which of the following reagent is commonly used to prepare alkyne form vicinal dihalide?
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In a standard hydrogen electrode, the platinum electrode:
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Which of the following compound has lower Lattice Energy?
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Reaction of 2-Bromobutane with alcoholic KOH yields:
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Which species contain an element with an oxidation number of +4?
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The rate of reaction
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The order of chemical reaction is defined as:
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Real gases show more positive deviation as pressure increases because of
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Which statement applies to both ideal and real gases
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If voltage across a resistor is doubled then its resistance will become: (temperature and physical state of the conductor remains constant).
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A particle is moving in a uniform circular path whose projection is executing simple harmonic motion on horizontal diameter. The ratio of instantaneous velocity to the maximum velocity of the projection while passing through the center is:
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The option that shows the conditions used by Laplace for connecting the velocity of sound is options medium used thermodynamics process 1 solid adiabatic 2 liquids isobaric 3 gas adiabatic 4 gas isothermal
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If different colored light beams have same total energy, which color beam will contain the smallest number of photons?
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A patient is injected with a radioactive isotope to trace blood flow and detect circulation issues. The isotope used is more likely to be:
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Water flows through a pipe of 0.02 m^2 with a speed of 3 m/s. The pipe narrows to 0.01 m^2. The speed in narrow section is:
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In the human circulatory system, turbulent blood flow is most likely to occur when the:
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A conducting ring is placed near a current-carrying coil. As the current in the coil increases, the induced current in the ring flows:
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In progressive waves, energy is transferred from one point to another through:
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A capacitor is connected to an AC source. If the frequency of the AC source is doubled the current in a purely capacitive circuit will:
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When thermal energy is transferred from a hot object to a cold one, the change occurs in the hot object as:
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Two spectral lines in the Hydrogen atom spectrum are close together. This likely means:
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When two identical waves arrive in phase at same point and in a region at the same time the resultant displacement is equal to
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High slope of Ohm's law graph means
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The electric potential at a point due to a point charge is 100J/C. If a test charge of magnitude 1C placed at that point is replaced with a 2C charge, then the physical quantity that will change is:
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The waves among the following which require a material medium for their propagation are:
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Unequal changes occurring in velocity of a body is called
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What will potential difference, if a wire has resistance of 10Ω and current 2A flow through it :
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According to the particle model of light, a photon is:
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The current in forward biased PN junction is mainly due to:
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Stationary waves are formed in a stretched string of 2m length, such that two vibrating loops are formed. The distance between consecutive nodes formed is:
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A high internal resistance battery is not suitable for heavy loads due to:
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Two equal charges experience a certain force when placed in vacuum. When the charges are placed in a medium, the force becomes 1/4th. The dielectric constant of the medium is:
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If a test charge of magnitude 2C experience forces of 100N and 200N at two points A and B in an electric field respectively. The ratio of electric fields at A to that of B is:
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A body of mass 2 kg moving with velocity 3 m/s collides with a body of mass 1 kg at rest. If they stick together, their common velocity after collision is:
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Two balls thrown with equal speeds but at different angles cover equal horizontal distance. If one is thrown at an angle of 40°, then the angle of projection of the other is:
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The work done on a body is stored in it in the form of:
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If 20 waves pass a point in 2 seconds and with a speed of 5m/s, then the wavelength of wave is:
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The unit of RC in case of charging a capacitor is:
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A longitudinal wave has a frequency of 500 Hz and wavelength of 0.6 m, its speed is:
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The true statement about angular displacement is:
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π radians are equivalent to
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A person moves 600 m towards north then 300 m towards south. Its displacement to distance ratio is:
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In a stationary wave the point that undergoes zero acceleration is:
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If the speed of sound is measured at sea level and at the top of a mountain, both at the same temperature, it will be:
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The book was written by Rashid Khan. Identify the correct usage of voice.
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Identify the example of complex sentence.
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Pick out the sentence which illustrates the use of infinitive.
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What is the effect of using synonyms with different shades of meaning in satire?
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People approach the situation differently depending on who they are. The word 'approach' in this sentence means ........
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The team won the match, _____ they broke the school record.
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Travelling in a hot dusty train gives me no pleasure. The underlined part of the sentence is:
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What does "I've told you a million times" means?
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An outbreak of a corona disease is reported in the city. What should be the first course of action?
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Find the next number: 5,11,23,47,95, _____ ?
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Which number comes in the missing place? 1, 3, 7, 15, 31, ______
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Every alphabet in the word "SURGEON" represent a fixed numerical value and the numbers when added, sum up to 99. Based on this, what will the sum of the word "EDR?QNSH" be?
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What is the primary difference between hypothesis and a theory?
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What comes next? ZX, WU, TR, QO, ____
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In a row of students, a student is at 13th position from the left end and 20th position from the right end. How many students are there in the row?
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A is older than B but younger than F. C is younger than B but older than D. Who is the youngest of them?
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A hiker climbed to a higher altitude, where he felt the air pressure was lower as compared to the lower altitude. What is the likely effect?
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