FMDC MDCAT 2015

Classification of organization is based on all the following except:

All of the following organs produce hormones involved in the reproductive cycle except the:

On a very cold day, a man waits for over an hour at the bus stop. Which of the following structures helps his body set and maintain a normal temperature?

Which hormone triggers your body to retain NaCl, especially during periods of excessive heat?

All viruses

The disease caused by bacteria is:

In human female FSH regulates the concentration of:

The absorption and use of calcium are regulated by:

Which cell does not carry out oxidative phosphorylation?

Which of the following is true regarding passive and active immunity?

Which one of the following enables the mammalian kidney to regulate water reabsorption during states of dehydration?

The spinal cord serves as the center of:

In which of the following is the organic compound COOH (carboxyl) group found? (I) Carbohydrate (II) Lipid (III) Protein

Genes P, Q, R, and S occur on the same chromosome.Investigation of a large population produced the following cross-over values between pairs of genes.P and R 34% P and Q 59% R and S 12% S and Q 37% Which of the following sequences represents the sequence of genes on the chromosome?

Which of the following lacks vertebrates?

The muscles attached to the bones are

In DNA, guanine forms a base pair while adenine forms a pair with ___

A drug reduces mitochondrial activity in nephrons of the kidney. Which chemical will be present in increased amounts in the urine?

The division of biology that deals with classification is:

The correct sequence of steps in koch’s postulate is (I) Injecting the germ, to produce original disease (II) Isolating the same germ in many cases (III) Obtaining the original germ from infected animals (IV) Growing the germ in pure culture

Which type of mammalian cell does not carry out oxidative phosphorylation?

Which structure is primarily responsible for water absorption during digestion?

The placenta releases all of the following hormones EXCEPT:

Reduction division occur during the process of:

The most correct statement about muscle contraction is:

Structure 4 (Liver) is responsible for:

The diagram summarizes the pathway a glucose breakdownHexose ↓Triose phosphate↓Pyruvate↓Acetyl CoA↓6C compound↓H2O + CO2Which two steps result in a net increase of ATP.

At which site does designation of starches begin:

The diagram below represents the synapse between two mammalian myelinated neurons, X and Y. The arrows show the direction of impulses.The transmission of impulses across the synapse is brought about by the:

Of the following organic compounds, the one that represents a protein is

An enzyme – substrate is the place where enzyme are

Where, in the nephron, is most glucose reabsorbed?

The most abundant substance in protoplasm is:

Fungi may be all of the following EXCEPT

The notochord is:

RNA _____ a double stranded molecule.

The diagram shows a section through a kidney and associated blood vessels.In which area is there the greatest movement of fluid from the blood through the wall of blood vessels?

Which of the following kinds of atoms do not occur in carbohydrates?

Which of the following statement regarding the periosteum is INCORRECT:

The octopus, calm and snail are alike in:

Consider the following statements about biological communities.(I) Their members share a common gene pool.(II) The community remains stable even though some physical aspect of the environment may undergo change.(III) They passes predictable kinds of species of predictable proportions.(IV) Interactions between their members are more frequent within the community than between their members and those of neighboring communities.Which two of the above statements apply to all stable biological communities?

Green plants carry on respiration

Which of the following choices correctly shows structures which are found in eukaryotic cells? (√= present , x= absent)

The nucleus contains all of the following structures except:

What are edaphic factors in the environment concerned with:

Which of the following is NOT an example of a non –specific defense mechanism?

When B –cells are presented with antigen they differentiate into:

Energy can be made available to the body in the following ways:(I) Conversion of surplus amino acids and glycerol to blood glucose and the mobilization of fat deposits which pass to the tissues for oxidation.(II) Breakdown of liver and muscle glycogen to form glucose.(III)Breakdown of tissue proteins to release amino acids which are then converted into glucose.In which order does the body draw on potential energy when it is being starved of food?

During which of the following processes ATP is produced? (I) Photosynthesis(II) Aerobic respiration(III) Anaerobic respiration

Which of the following has evolved mainly as a result of artificial selection?

Plants and animals cells are alike in processing:

The autonomic nervous system controls all of the following activities EXCEPT:

Utilization of the products of digestion for production of energy or synthesis of cellular material is termed as:

Structures that conduct materials throughout a plant are called?

The technique of DNA fingerprinting has been used to identify people in crime, accidents, and family relationships. To analyze the DNA of members of the same family, it is necessary to examine samples of their tissues for:

A cross in which three fourths of the offspring appear dominant is:

Which one of the following types of bond is principally concerned in maintaining the alpha helix shape of secondary protein structure?

Five stages in the production of human insulin by genetic engineering techniques are given1. DNA cut with restriction enzymes 2. DNA copy made using reverse transcriptase 3. Messenger RNA extracted from cells 4. Plasmid RNA joined to donor DNA using a ligase enzyme5. Recombinant plasmid inserted into bacterial cellWhich sequence is correct? First ------ Last

Which of the following is the combination of bases that cannot be present in DNA is:

Which class of molecule is the major component of cell membrane?

Photophosphorylation during photosynthesis results in the formation of:

All of the following statements about tropical rain forests are true EXCEPT:

Which of the following choices INCORRECTLY pairs a digestive enzyme with its secretion?

When N²⁺ is form N₂ bond-order ......... and when O²⁺ is formed from O₂ bond-order:

An aqueous solution of TI(H2O) 6] 3+] appears:

FIX THIS: Part of periodic table is shown; the letters are not symbol of the elements.Which statement is correct?

FIX THIS:One of the isomers of C6 H12 (A) has chiral carbon but on hydrogenation it losses is chirality. A is:

Electric cookers have a coating that protects them against fire:

The general formula for Carbohydrates is:

A solution of 500 ml of 0.2 KOH and 500ml of 0.2M HCl is mixed and stirred; the rise in temperature is T1. The experiment is repeated using 250ml of each of the solution: the temperature rise is T2. Which of the following is true?

FIX THIS:Y G of non-volatile substance (molecular mass M) is dissolved into 50 G of Benzene. If Kb is the metal elevation constant, the value of T , is given by

A mixture of ethanol and propanol has vapour pressure of 290mm at 29oC. If mole fraction of ethanol is 0.65, then what will be its vapour pressure if vapour pressure of pure propanol is 210mm?

The reaction CH3COOAg + Br2 → CH3 Br + CO2 + AgBr is known as:

Macromolecules are of types:

FIX THIS:For A gaseous reaction. A2+2B → 2AB, the following rate data are obtained at 250k. Calculate the rate of formation of AB when [A2] = 0.02M and [B] = 0.01M at 250K.

A metal sulphate contains 9.87% of M. This sulphate is isomorphous with ZnSO4, 7H2O. Determine the atomic weight of metal M.

FIX THIS:At 25oC, the equilibrium constants K1 and K2 of two reactions are 2NH3 ↔ N2 + 3H2 and 1/2N2 + 3/2H2 ↔ NH3; K1 and .K2 are related as:

FIX THIS:If 2-amino 3-methylbutane were treated with excess methyl iodide, silver oxide and water, what would be the major reaction products?

Which one of the following phenol is more soluble in aq: NaCHO3

Zn(s) + Cu2+(aq) → Cu(s) + Zn2+(aq) at 300 K Ecell is 1.12V. what is the entropy change (ΔS) for the above cell reaction?

Chlorine in Vinyl chloride is not very reactive because

FIX THIS: Arrange the following compounds in order of increasing reactivity towards the addition of HCN. Acetaldehyde (I) , Acetone (II) , methy t-butyl ketone (III) , di-t-butyl ketone (IV):

Which of the following alkyl halides will undergo SN1 reaction most readily?

FIX THIS:The process requiring absorption of energy is:

Amongst the following ions whish has the highest paramagnetism?

Amino acids with non-polar R-groups have which of the following characteristics is aqueous solution?

100 c.c of oxygen is collected over water at 23°C and 800mm pressure. If vapour pressure of water vapours at 23°C is 21.00mm, then calculate volume of the gas at NTP.

An equimolar quantities of ethanol and methanol are heated with conc.H2SO4. The product formed is?

The long chains of amino acids are called:

Infrared lamps are used in restaurants and cafeterias to keep food warm. The infrared radiation is strongly absorbed by water, raising its temperature and that of the food. If the wavelength of infrared radiation is assumed to be 1500nm, then the number of photons per second of infrared radiation produced by an infrared lamp that consumes energy of the rate of 100 watt and is 12% efficient will be:

If an amino acid (pl = 9.74) in acidic solution is completely titrated with sodium hydroxide, what will be its charge at pH 3, 7, and 11 respectively?

The bar chart shows the period of elements from lithium to neon.Which property of these elements is shown on the chart?

A water soluble compound of molecular formula C3H6O gives yellow crystalline solid on heating with I and Na2CO3 , the compound is:

As a result of increased CO2 in the atmosphere, oceans will become more:

For the reaction N2 + O2 2NO, the value of K is 0.0842 at 3500 K. Calculate the fraction of equilibrium mixture of N2 and O2 converted into NO.

FIX THIS:Alpha helices are secondary structures characterized by:

FIX THIS:ϒ- butyrolactone (ester) does not react with:

What is the average translational kinetic energy of molecules in a gas at temperature 27°C?

The turbine in a steam power takes steam from a boiler at 427°C and exhaust into a low temperature reservoir at 77°C. What is the maximum possible efficiency?

Identify the main type(s) of nuclear reactors:

The property of bending of light around obstacles and spreading of light waves into a geometrical shadow of an obstacle is known as:

A pipe has a length of 1m. determine the frequencies of the fundamental and the first two harmonic if the pipe is opened at both end.(speed of sound in air is =340m/s)

FIX THIS:The distance between the slits in young’s double slit experiment is 0.25cm. Interference fringes are formed on a screen placed at a distance of 100cm from slits. The distance of the third dark fringe from the central bright fringe is 0...59cm. What is the wavelength of the incident light?

Find the radius of an orbit of an electron moving at a rate of 2.0 x 107 m/s in a uniform magnetic field of 1.20 x 10-3 T.

Identify the isotope/s of Helium:

A 1500kg vehicle has its velocity reduced from 20m/s to 15m/s in 3.0 seconds. How large was the average retarding force?

FIX THIS:Identify the postulate /s which help to formulate a mathematical model of gases. i) A finite volume of gas consists of very large number of molecules ii) The size of the molecules in much smaller than the separation between molecules. iii) Molecules do not exert force on each other except during a collision

If a process cannot be retracted in the backward direction by reversing the controlling factors. It is a/an:

The potential difference between the terminals of the battery in an open circuit is 2.2V. When it is connected across a resistor of 5.0 ohm, the potential falls to 1.8V. What is the current in the battery?

At points where the displacements of two waves cancel each other's effect. the path difference is an odd integral multiple of half the wavelength. This effect is known as:

FIX THIS:What is mass “m” of a moving object with speed 0.8c?

A reaction in which a heavy nucleus like that of uranium splits up into two nuclei of roughly equal size along with the emission of energy during the reaction is called a:

What resistance must be connected across a galvanometer of 50.0 ohm resistance which gives full scale deflection with 2.0MA current to convert it into an ammeter of range 10.0A?

The emission of electrons from a metal surface when exposed to light of suitable frequency is known as:

The special theory of relativity is based upon I) The laws of physics are same in all inertial frame .II) The speed of light in free space has the same value for all observers, regardless of their state of motion.

Fluorescence is the property of absorbing radiant energy of …... frequency and re-emitting energy of _______ frequency in the visible region of electromagnetic spectrum.

The half-life T of a radioactive element is that period in which ______ of the atoms decay.

Numbers are expressed in a standard form called scientific notation, which employs powers of:

An object moving through a fluid experiences a retarding force known as drag force. The drag force ____ as the speed of the object ______

A platinum wire has resistance of 10ohm at 0c° and 20ohm at 273c°. What is the value of temperature coefficient of resistance of platinum?

What is the energy of a photon in a beam of infrared radiation of wavelength 1240nm?

A nucleus consists of nucleons comprising of protons and neutrons. A proton has a positive charge equal to and has a mass:

In the following question, four alternative meanings of a word are given. Select the nearest correct meaning of the given word.BOWDLERIZE:

Identify the underlined segment in the following sentence, which contains the mistake that needs to be corrected.We wished today was sunny so that we could spend the day in the country communicating with nature.

Identify errors in the sentenceEnlarged and beautified by later Caliphs, Al-Zahra become the nucleus of a royal suburb whose remains partly evacuated in and after 1910, can still be seen.

In the following question, four alternative meanings of a word are given. Select the nearest correct meaning of the given word.BRASSY:

Fill in the blankI ______ caution in interpreting these results.

Fill in the blankThe culpable child _____ some words to her mother for pardoning his delinquency.

Choose the right option to complete the following sentence:All the _____ and ceremony of the royal marriage was telecast on TV.

Identify the underlined segment in the following sentence, which contains the mistake that needs to be corrected.It should also help you to understand how can you make better use of the scientific method in your everyday living.

Identify errors in the sentenceRubber tubes upon which children had swing in backyards hung suspended like stopped clock pendulums in the blazing air.

Identify the incorrect part of the sentenceThe three Abdal Rahman, like his illustrious predecessor, was a young man of twenty-three when he took office.

In the following question four alternative sentences are given. Choose the CORRECT option:

Identify errors in the sentence“All is well what ends well”, said the father when he had finished the story.

Fill in the blankThe new teacher showed no _____ about hitting the students.

Fill in the blankThe accident happened due to the driver’s _____

Choose the right option to complete the following sentence:A glue produced by bees to _____ their hives appears to contain antibiotic substances.

Fill in the blankThey sometimes feel a _____ for the mountains and the sea.

Fill in the blankThe parents stunned when they saw that children had created complete _____ in the bedroom:

Identify the incorrect part of the sentenceThe child was fully dressed and sitting in her father’s lap near the kitchen table.

She was feeling ______ even after five hours of the surgery.