FMDC MDCAT 2013

The epiglottis is to trachea as the lower esophageal (cardiac) sphincter is to the:

Starch is hydrolyzed into maltose by:

Arthropods can be characterized by all of the following EXCEPT:

In the course of glycolysis:

“Hordeum vulgare” is the botanical name of:

Duckbill platypus and spiny anteater have internal fertilization and are:

Which of the following statements could not be used to describe a species?

The diagram shows the sequence of events occurring as an action potential arrives at a synapse.The numbered arrows represent movement of substances across the membranes.What are the substances moving across the membranes?

Response to plants to touch is called:

Select the false statement:

Which of the following is an acceptable nitrogen base composition for double stranded:

At which two points of the menstrual cycle are the levels of oestrogen heights?

Nematocysts are characteristics of:

Which of the following best describes the residual volume of the lungs?

In the 𝐹 generation of a dihybrid cross between yellow, round seeded and green, wrinkled seeded pea plants, 17 out of 254 seeds were green and wrinkled other seeds were:Yellow and roundGreen and roundYellow and wrinkledWhat do these results indicate?

The tricuspid valve prevents backflow of blood from the

The liver:

The role of decomposers in the nitrogen cycle is to:

Organisms that live in the intertidal zone might have which of the following characteristics?i.Ability to conduct photosynthesisii.Tolerance of periodic droughtiii. Tolerance of wide range of temperatures

Photosynthetic product from leaves to all parts of plant are disturbed through:

The diameter of a tree is reduced slightly during the day and increased at night. Which of the following changes in environmental conditions cause the greatest reduction in diameter?

Which of the following is the stage of meiosis during which pairs of homologous chromosomes align at the center of the cell?

In floral formula “K” stands for:

The usual duration of luteal phase in the menstrual cycle of human female is:

Which of the following pathways outlines the order of events during aerobic cellular respiration?First ———-> Last

A student is trying to determine the type of membrane transport occurring in a cell. She finds that the molecules to be transported are very large and when transported across the membrane, no ATP is used. Which of the following is the most likely mechanism of transport?

Black coat color in horses is caused by a dominant allele, while white coat color is due to the recessive allele. Two black horses produce a foal with a coat, if they were to produce a second foal, what would be the probability of the second foal having a black coat?

The correct order of the structures through which air passes isI. Nasal cavityII. BronchiIII. LarynxIV. Air sacsV. Trachea

Why is there no glucose present in the distal of a nephron?

Herpes is a virus that enters the human body and remains dormant in the nervous system until it produces an outbreak, without any particular reason. Which of the following statements correctly describes herpes?

The ______ free radical takes part in the destruction of the ozone layer.

When must a substance be an alkane?

The value of the enthalpy change for the process represented by the equation:Na(s) —-> Na+(g) + e- is equal to:

The crystals formed as a result of vander der Waals interactions are:

Which gas shows real behaviour?

Heat of neutralisation of strong acid by strong base is constant value because:

Which of the following is not an electrophile?

A hydrocarbon, which is liquid at room temperature, decolourizes aqueous bromine. Which could be the molecular formula of the compound?

The alloy of copper and tin is called:

As the atomic number increases in a group, the chemical properties:

Which reagent gives a colorless homogeneous solution when added tp phenol?

Which property of a gas affects the rate at which it spreads throughout a laboratory?

Which xylene is most easily sulphonated:

Which statement shows that diamond and graphite are allotropes of carbon?

If Aufbau rule is not followed in filling of the sub shell then the block of which elements will change in the periodic table.

Which one of the following is likely to give a precipitate with 𝐴𝑔𝑁𝑂3 solution?

Which pair of structures are isomers of each other?

The number and types of bonds between two carbons atoms in 𝐶𝑎𝐶2 are:

All the following are the true statement concerning catalyst EXCEPT:

Which substance has tetrahedral geometry?

One mole of an organic compound is completely burnt in oxygen. Which compound produces exactly three moles of water?

How many isomers are possible for the compound having molecular having molecular formula C3H5Br.

Which gaseous hydride most readily decomposes into its elements on contact with a hot glass rod?

Which statement about one mole of metal is always correct?

The bonding in sulphuric acid can be represented by the structure shown: What is the total number of electrons in the covalent bonds surrounding the sulphur atom?

In 𝑆𝑝3𝑑 hybridization, the o orbital that participates in hybridization is:

Compared with alkaline earth metals the alkali metals exhibit:

Bleaching powder is a good:

Which of the following processes is endothermic?

How many atoms of carbon are present in 18 g of glucose, 𝐶6 𝐻12 𝑂6?

A ball is thrown vertically upward with velocity of 196 m/s. How high does the ball rise?

‘’If there is no external force applied to a system, then the total momentum of that system remains constant”. This known as:

A frictionless heat engine can be 100% efficient only its exhaust temperatures is:

The vector which only specifies the direction of a given vector is called:

A light bulb has resistance of 150 ohm, find the voltage while the current is 1.5A?

A simple pendulum suspended from the ceiling of a train has a period ‘T’ when the train is at rest. When the train is accelerating with a uniform acceleration, the time period of simple pendulum will:

Two rail cargo cars are being hitched together. The first car has a mass of 15,750 kg and is moving at a speed of 4 m/s. What is the final velocity of the two cars? m2 is 19250

A rock is dropped from a high bridge at the end of 3 seconds of free fall the speed of the rock in cm/s:

A convex lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. the power of the combination in dioptres is:

Lenz’s law states that:

A small and a large raindrops are falling through air

A detector with a surface area of 1 square meter is placed 1 meter from an operating jackhammer. It measures the power of the jackhammer’s sounds as being 10−3 W and finds the intensity of the jackhammer.

An elevator, in which a man is standing is moving upward with a constant speed of 10 m/𝑠 2. If the an of the drops a coin from a height of 2.5 m, find the time taken by it to reach the floor of the elevation (g=9.8 m/𝑠 2)

An object that’s moving with constant speed travels around a circular path. Which of the following is/are true concerning this motion?I The displacement is zeroII. The average speed is zeroIII. The circulation is zero

A container is divided into two equal portions. One portion contains an ideal gas at pressure P and temperature T while the other portion is a perfect vacuum. If a hole is opened between the two portions:

A system absorbs 80 J through heating while doing 100 J of external work, what is the change in the internal energy of the system?

Two capacitors 𝐶1 = 2𝑢 F and 𝐶1 = 4𝑢 F are connected series across a 100 V supply. Find the effective capacitance.

A 100 kg man runs up a hill through a height of 4m in seconds. How much work does he do against gravitational force?

A region around a charge body in which another charge experiences an electric force is called:

The kinetic energy of a projectile at the highest point is half of its kinetic energy. The angle of projection is:

Ultraviolet light is more likely to cause a photoelectric effect than visible light. This is because photons of ultraviolet light:

A 1000 kg car can accelerate from rest to a speed of 25 m/s in 10s. what average power (in kilowatts) must the engine of the car produce in order to cause this acceleration? Neglect the friction loss.

Which statement describes the electrical potential difference between two points in a wire carrying a current?

Find the time period of a simple pendulum whose length is 88.2 cm. The value acceleration due to gravity is 9.8 m/𝑠 2 at the place where experiments is performed?

Consider two equal resistors wired in parallel. What is the equivalent resistance of the two?

A car travelling at a constant speed of 90 km/h rounds a curve of a radius 100m. What is its acceleration?

Two tuning forks are sounded, one has a frequency of 250 Hz while the other has a frequency of 245 Hz. What is the frequency of the beats?

A boy on a 20 m high cliff drops a stone. One second later, he throws down another stone. Both the stones hit the ground simultaneously. Find the initial velocity of the second stone. (g=10/𝑠 2)

If an object is released 19.6 metres above the ground, how long does it take the object to reach the ground? (g=9.8 𝑚/𝑠^2)

A body rolling freely on the surface of the earth eventually comes to rest because:

Which is not a past from of a verb.

He complains _____ headache.

Sharks differ from other fish in that Their skeleton are made of cartilage instead of bone.

Which one of the following four options is nearest in meaning to the word in capitals?WISP

Which contains an adjective?

Which one of the following four options is nearest in meaning to the word in capitals?STAGNATE

Which one of the following four options is nearest in meaning to the word in capitals? ASTOUND

Which contains an adverb?

Which one of the following four options is nearest in meaning to the word in capitals? SCORN

Which is not correct?