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NU Bangladesh Honours Admission study materials
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NU Bangladesh Honours Admission practice questions

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Question 1General / Undifferentiated (official content domains not enumerated in source)

Which organelle is known as the powerhouse of the eukaryotic cell because it produces most of the ATP?

  1. Ribosome
  2. Golgi apparatus
  3. Mitochondrion Correct answer.
  4. Lysosome

Explanation

Mitochondria carry out oxidative phosphorylation, generating the bulk of cellular ATP through the electron transport chain. Ribosomes build proteins, the Golgi modifies and packages them, and lysosomes degrade waste, so none of these supply most of the cell's energy.

Question 2General / Undifferentiated (official content domains not enumerated in source)

What is the chemical formula of ordinary table salt?

  1. NaCl Correct answer.
  2. NaHCO3
  3. CaCO3
  4. KCl

Explanation

Table salt is sodium chloride, formed from sodium and chlorine ions in a 1:1 ratio, giving the formula NaCl. The other formulas describe potassium chloride, calcium carbonate, and sodium bicarbonate respectively.

Question 3General / Undifferentiated (official content domains not enumerated in source)

A train travels 240 km in 3 hours. What is its average speed?

  1. 72 km/h
  2. 60 km/h
  3. 90 km/h
  4. 80 km/h Correct answer.

Explanation

Average speed equals total distance divided by total time, so 240 divided by 3 gives 80 km/h. Checking by multiplication, 80 km/h for 3 hours covers 240 km, confirming the result.

Question 4General / Undifferentiated (official content domains not enumerated in source)

Which gas is most abundant in Earth's atmosphere by volume?

  1. Oxygen
  2. Nitrogen Correct answer.
  3. Carbon dioxide
  4. Argon

Explanation

Nitrogen makes up roughly 78 percent of the atmosphere by volume, while oxygen accounts for about 21 percent. Carbon dioxide and argon are present only in trace amounts, well below one percent each.

Question 5General / Undifferentiated (official content domains not enumerated in source)

Who wrote the play Macbeth?

  1. Christopher Marlowe
  2. William Shakespeare Correct answer.
  3. Ben Jonson
  4. John Milton

Explanation

Macbeth is a tragedy by William Shakespeare, written in the early seventeenth century and based loosely on historical Scottish kings. Marlowe, Milton, and Jonson were contemporaries or near-contemporaries but did not author this play.

Question 6General / Undifferentiated (official content domains not enumerated in source)

What is the value of the expression 2^5?

  1. 64
  2. 25
  3. 32 Correct answer.
  4. 10

Explanation

The exponent indicates repeated multiplication, so 2^5 means 2 multiplied by itself five times: 2 x 2 x 2 x 2 x 2 equals 32. Multiplying by 2 rather than by the base's value avoids the common error of computing 2 x 5.

Question 7General / Undifferentiated (official content domains not enumerated in source)

Which planet is closest to the Sun?

  1. Mars
  2. Mercury Correct answer.
  3. Earth
  4. Venus

Explanation

Mercury orbits nearest the Sun, with an average distance of roughly 58 million kilometres. Venus, Earth, and Mars follow in that order moving outward from the Sun.

Question 8General / Undifferentiated (official content domains not enumerated in source)

In grammar, which word in the sentence 'She quickly finished her homework' is an adverb?

  1. finished
  2. She
  3. quickly Correct answer.
  4. homework

Explanation

An adverb modifies a verb, adjective, or another adverb, and 'quickly' describes how the action of finishing was done. 'She' is a pronoun, 'finished' is a verb, and 'homework' is a noun acting as object.

Question 9General / Undifferentiated (official content domains not enumerated in source)

Which blood cells are primarily responsible for transporting oxygen from the lungs to tissues?

  1. White blood cells
  2. Red blood cells Correct answer.
  3. Plasma proteins
  4. Platelets

Explanation

Red blood cells contain haemoglobin, which binds oxygen in the lungs and releases it in tissues. Platelets assist clotting, white cells defend against infection, and plasma proteins perform transport and immune roles but not bulk oxygen carriage.

Question 10General / Undifferentiated (official content domains not enumerated in source)

A shop offers a 20 percent discount on a shirt priced at 750 taka. What is the selling price?

  1. 700 taka
  2. 650 taka
  3. 600 taka Correct answer.
  4. 620 taka

Explanation

A 20 percent discount removes one fifth of the price, so the reduction is 150 taka. Subtracting 150 from 750 leaves a selling price of 600 taka.

Question 11General / Undifferentiated (official content domains not enumerated in source)

Which process converts a liquid into vapour at a temperature below its boiling point?

  1. Condensation
  2. Sublimation
  3. Freezing
  4. Evaporation Correct answer.

Explanation

Evaporation is the change from liquid to vapour that occurs at the liquid surface at temperatures below the boiling point. Condensation is the reverse change, sublimation is solid to gas directly, and freezing is liquid to solid.

Question 12General / Undifferentiated (official content domains not enumerated in source)

If a fair six-sided die is rolled once, what is the probability of getting a number greater than 4?

  1. 1/2
  2. 1/6
  3. 1/3 Correct answer.
  4. 2/3

Explanation

The numbers greater than 4 on a standard die are 5 and 6, giving two favourable outcomes out of six equally likely outcomes. The probability is 2/6, which simplifies to 1/3.

Question 13General / Undifferentiated (official content domains not enumerated in source)

Which of the following is a renewable source of energy?

  1. Petroleum
  2. Wind Correct answer.
  3. Natural gas
  4. Coal

Explanation

Wind energy is replenished continuously by natural atmospheric processes, making it renewable. Coal, natural gas, and petroleum are fossil fuels formed over millions of years and are consumed far faster than they form.

Question 14General / Undifferentiated (official content domains not enumerated in source)

Which part of the human brain mainly coordinates balance and fine motor control?

  1. Medulla oblongata
  2. Cerebellum Correct answer.
  3. Hypothalamus
  4. Cerebrum

Explanation

The cerebellum coordinates voluntary movement, posture, and balance by integrating sensory input with motor commands. The cerebrum handles higher thought, the medulla controls autonomic functions such as breathing, and the hypothalamus regulates homeostasis.

Question 15General / Undifferentiated (official content domains not enumerated in source)

Solve for x: 3x + 5 = 20.

  1. 3
  2. 15
  3. 7
  4. 5 Correct answer.

Explanation

Subtracting 5 from both sides gives 3x = 15, and dividing both sides by 3 yields x = 5. Substituting 5 back into the original equation gives 15 + 5 = 20, which confirms the solution.

Question 16General / Undifferentiated (official content domains not enumerated in source)

Which of the following is an example of a chemical change?

  1. Dissolving sugar in water
  2. Melting of ice
  3. Rusting of iron Correct answer.
  4. Evaporation of alcohol

Explanation

Rusting involves iron reacting with oxygen and water to form a new substance, iron oxide, which is a chemical change. Melting, dissolving, and evaporation alter physical state or dispersion without creating new chemical substances.

Question 17General / Undifferentiated (official content domains not enumerated in source)

The idiom 'to bury the hatchet' most nearly means to do what?

  1. Make peace after a conflict Correct answer.
  2. Hide evidence of wrongdoing
  3. Abandon a difficult task
  4. Conceal a weapon

Explanation

The idiom 'bury the hatchet' refers to ending hostility and making peace, derived from the practice of putting aside weapons. It concerns reconciliation between parties rather than hiding objects or giving up on work.

Question 18General / Undifferentiated (official content domains not enumerated in source)

Which of the following is a primary function of the roots of a plant?

  1. Dispersing seeds
  2. Carrying out photosynthesis
  3. Producing flowers
  4. Absorbing water and minerals Correct answer.

Explanation

Roots anchor the plant and absorb water and dissolved minerals from the soil, which are then transported upward. Photosynthesis occurs mainly in leaves, while flowers and seed dispersal are reproductive functions of the shoot system.

Question 19General / Undifferentiated (official content domains not enumerated in source)

If a car accelerates uniformly from rest to 20 m/s in 5 seconds, what is its acceleration?

  1. 4 m/s^2 Correct answer.
  2. 100 m/s^2
  3. 5 m/s^2
  4. 2 m/s^2

Explanation

Acceleration is the change in velocity divided by the time taken, so (20 - 0) divided by 5 gives 4 m/s^2. Uniform acceleration means this value stays constant throughout the interval.

Question 20General / Undifferentiated (official content domains not enumerated in source)

In a class of 40 students, 60 percent are girls. How many boys are there?

  1. 16 Correct answer.
  2. 18
  3. 26
  4. 24

Explanation

Sixty percent of 40 is 24 girls, so the remaining students are boys. Subtracting 24 from 40 gives 16 boys, which is 40 percent of the class.

Question 21General / Undifferentiated (official content domains not enumerated in source)

Which of the following best describes the term 'opportunity cost' in economics?

  1. The tax imposed on a transaction
  2. The value of the next best alternative forgone Correct answer.
  3. The money paid for a good
  4. The total cost of production

Explanation

Opportunity cost measures the value of the best alternative given up when a choice is made, reflecting scarcity of resources. It is broader than the money price paid, production expenses, or taxes, because it captures what is sacrificed.

Question 22General / Undifferentiated (official content domains not enumerated in source)

A sum of money doubles in 8 years under simple interest. What annual rate of interest applies?

  1. 8 percent
  2. 25 percent
  3. 10 percent
  4. 12.5 percent Correct answer.

Explanation

Under simple interest, doubling means the interest earned equals the principal, so rate multiplied by time must equal 100 percent. With time equal to 8 years, the rate is 100 divided by 8, which is 12.5 percent per year.

Question 23General / Undifferentiated (official content domains not enumerated in source)

Which of the following statements about the pH scale is correct?

  1. Increasing pH always increases acidity
  2. A solution with pH 3 is more acidic than one with pH 5 Correct answer.
  3. Pure water has a pH of exactly 0
  4. A solution with pH 9 is acidic

Explanation

The pH scale is logarithmic and inversely related to hydrogen ion concentration, so lower values indicate greater acidity. A pH of 3 is therefore more acidic than a pH of 5, while pure water is neutral at about 7 and higher pH means lower acidity.

Question 24General / Undifferentiated (official content domains not enumerated in source)

A body moves in a circle at constant speed. Which statement about its motion is true?

  1. It experiences a centripetal acceleration directed toward the centre Correct answer.
  2. Its velocity is constant because speed is constant
  3. It has no acceleration because speed is constant
  4. Its acceleration is zero at every instant

Explanation

Velocity is a vector, so a change in direction at constant speed still produces acceleration. In uniform circular motion this acceleration points toward the centre and is called centripetal acceleration, with magnitude v squared divided by radius.

Question 25General / Undifferentiated (official content domains not enumerated in source)

A bag contains 4 red and 6 blue balls. Two balls are drawn without replacement. What is the probability that both are red?

  1. 4/25
  2. 1/3
  3. 2/15 Correct answer.
  4. 1/5

Explanation

The probability the first ball is red is 4/10, and given that, the probability the second is red is 3/9. Multiplying these fractions gives 12/90, which simplifies to 2/15.

Question 26General / Undifferentiated (official content domains not enumerated in source)

Which of the following is the chemical formula for table salt?

  1. CaCO3
  2. NaHCO3
  3. KCl
  4. NaCl Correct answer.

Explanation

Table salt is sodium chloride, formed when sodium loses an electron to chlorine. Its formula is NaCl, one sodium ion paired with one chloride ion.

Question 27General / Undifferentiated (official content domains not enumerated in source)

Which of the following is the largest ocean on Earth?

  1. Atlantic Ocean
  2. Arctic Ocean
  3. Indian Ocean
  4. Pacific Ocean Correct answer.

Explanation

The Pacific Ocean covers roughly one third of the planet's surface and holds more than half of its water. It is larger than all the other oceans combined.

Question 28General / Undifferentiated (official content domains not enumerated in source)

Which of the following words is a synonym of 'abundant'?

  1. Scarce
  2. Reluctant
  3. Plentiful Correct answer.
  4. Fragile

Explanation

'Abundant' describes something existing in large quantities, so 'plentiful' carries the same meaning. The two words can replace each other in most contexts.

Question 29General / Undifferentiated (official content domains not enumerated in source)

Which of the following is the capital city of Japan?

  1. Tokyo Correct answer.
  2. Nagoya
  3. Osaka
  4. Kyoto

Explanation

Tokyo has served as Japan's capital since 1868, when the imperial seat moved there from Kyoto. It is also the country's largest city and its political centre.

Question 30General / Undifferentiated (official content domains not enumerated in source)

What is the value of 15 percent of 240?

  1. 48
  2. 24
  3. 30
  4. 36 Correct answer.

Explanation

Fifteen percent means 15 divided by 100, which equals 0.15. Multiplying 0.15 by 240 gives 36, so 15 percent of 240 is 36.

Question 31General / Undifferentiated (official content domains not enumerated in source)

Which gas do plants absorb from the atmosphere during photosynthesis?

  1. Oxygen
  2. Hydrogen
  3. Carbon dioxide Correct answer.
  4. Nitrogen

Explanation

During photosynthesis plants take in carbon dioxide and water and use light energy to make glucose, releasing oxygen as a by-product. Carbon dioxide is therefore the key input gas.

Question 32General / Undifferentiated (official content domains not enumerated in source)

Which of the following is a proper fraction?

  1. 7/4
  2. 5/5
  3. 3/8 Correct answer.
  4. 9/2

Explanation

A proper fraction has a numerator smaller than its denominator, so its value is less than one. In 3/8 the numerator 3 is less than 8, making it proper.

Question 33General / Undifferentiated (official content domains not enumerated in source)

Which of the following is the unit of electric current in the SI system?

  1. Ohm
  2. Watt
  3. Ampere Correct answer.
  4. Volt

Explanation

The ampere measures the rate of flow of electric charge and is the SI base unit for current. The other listed units measure different electrical quantities.

Question 34General / Undifferentiated (official content domains not enumerated in source)

A train travels 180 km in 3 hours. What is its average speed?

  1. 65 km/h
  2. 50 km/h
  3. 90 km/h
  4. 60 km/h Correct answer.

Explanation

Average speed equals total distance divided by total time. Dividing 180 km by 3 hours gives 60 km/h.

Question 35General / Undifferentiated (official content domains not enumerated in source)

Which of the following pairs of words are antonyms?

  1. Ancient and modern Correct answer.
  2. Begin and start
  3. Quick and fast
  4. Happy and joyful

Explanation

Antonyms are words with opposite meanings. 'Ancient' means very old while 'modern' means of the present time, so the two are opposites.

Question 36General / Undifferentiated (official content domains not enumerated in source)

A rectangle has a length of 12 cm and a width of 7 cm. What is its area?

  1. 19 cm²
  2. 38 cm²
  3. 42 cm²
  4. 84 cm² Correct answer.

Explanation

The area of a rectangle is length multiplied by width. Multiplying 12 cm by 7 cm gives 84 square centimetres.

Question 37General / Undifferentiated (official content domains not enumerated in source)

Which of the following is a compound sentence?

  1. Although it rained, we went out.
  2. The boy who won the prize is my brother.
  3. She sang a song.
  4. He studied hard, and he passed the exam. Correct answer.

Explanation

A compound sentence joins two independent clauses with a coordinating conjunction such as 'and', 'but' or 'or'. In the correct option both 'he studied hard' and 'he passed the exam' can stand alone.

Question 38General / Undifferentiated (official content domains not enumerated in source)

Which of the following is a function of the pancreas?

  1. Producing red blood cells
  2. Producing bile for fat digestion
  3. Filtering urea from the blood
  4. Secreting insulin to regulate blood sugar Correct answer.

Explanation

The pancreas contains endocrine cells that secrete insulin and glucagon, hormones that control blood glucose levels. It also produces digestive enzymes, but insulin regulation is its endocrine role.

Question 39General / Undifferentiated (official content domains not enumerated in source)

If the price of a good rises and, as a result, demand for its substitute increases, this best illustrates which economic concept?

  1. Law of supply
  2. Diminishing marginal utility
  3. Cross-price elasticity of demand Correct answer.
  4. Law of demand

Explanation

Cross-price elasticity measures how demand for one good responds to a change in the price of another. A positive response for substitutes shows they move in the same direction.

Question 40General / Undifferentiated (official content domains not enumerated in source)

A sum of 5000 taka is invested at 10 percent simple interest per year. What total interest is earned after 3 years?

  1. 500 taka
  2. 1500 taka Correct answer.
  3. 1655 taka
  4. 1000 taka

Explanation

Simple interest equals principal times rate times time. Here 5000 × 0.10 × 3 gives 1500 taka in total interest.

Question 41General / Undifferentiated (official content domains not enumerated in source)

Which of the following best describes the greenhouse effect?

  1. The trapping of heat by atmospheric gases such as carbon dioxide Correct answer.
  2. The depletion of ozone in the upper atmosphere
  3. The cooling of the Earth's surface by ocean currents
  4. The reflection of sunlight by polar ice sheets

Explanation

Certain atmospheric gases absorb outgoing infrared radiation and re-emit it towards the surface, warming the planet. This natural process is called the greenhouse effect.

Question 42General / Undifferentiated (official content domains not enumerated in source)

A number is increased by 25 percent and then decreased by 20 percent. What is the net change from the original number?

  1. No change Correct answer.
  2. A 45 percent increase
  3. A 5 percent increase
  4. A 5 percent decrease

Explanation

Let the original number be 100. Increasing by 25 percent gives 125, and decreasing 125 by 20 percent gives 100 again, so the net change is zero.

Question 43General / Undifferentiated (official content domains not enumerated in source)

Which of the following correctly changes the sentence 'He said, "I am busy"' into indirect speech?

  1. He says that he was busy.
  2. He said that he is busy.
  3. He said that I was busy.
  4. He said that he was busy. Correct answer.

Explanation

When the reporting verb is in the past, the verb inside the reported clause usually shifts one step back in time. 'Am' therefore becomes 'was'.

Question 44General / Undifferentiated (official content domains not enumerated in source)

Two resistors of 4 ohms and 6 ohms are connected in series. What is their equivalent resistance?

  1. 10 ohms Correct answer.
  2. 2.4 ohms
  3. 24 ohms
  4. 5 ohms

Explanation

In a series circuit the same current flows through each resistor, so resistances simply add. Adding 4 ohms and 6 ohms gives 10 ohms.

Question 45General / Undifferentiated (official content domains not enumerated in source)

A sum of money amounts to 8800 taka in 2 years at 10 percent annual compound interest. What was the principal?

  1. 7000 taka
  2. 7500 taka
  3. 7200 taka
  4. 8000 taka Correct answer.

Explanation

For compound interest the amount equals principal times (1 + r) raised to the number of years. Dividing 8800 by 1.21 gives 8000 taka.

Question 46General / Undifferentiated (official content domains not enumerated in source)

Which of the following best explains why the Moon always shows nearly the same face to Earth?

  1. Earth's gravity prevents the Moon from spinning.
  2. The Moon's rotation period equals its orbital period around Earth. Correct answer.
  3. The Moon is too small to be seen rotating.
  4. The Moon does not rotate on its own axis.

Explanation

The Moon rotates once for every orbit it completes around Earth, a condition called synchronous rotation. As a result the same hemisphere stays turned towards us.

Question 47General / Undifferentiated (official content domains not enumerated in source)

A bag contains 5 white and 3 black balls. Two balls are drawn one after another without replacement. What is the probability that both are white?

  1. 5/14 Correct answer.
  2. 25/64
  3. 3/14
  4. 5/28

Explanation

The first draw is white with probability 5/8, leaving 4 white among 7 balls. Multiplying 5/8 by 4/7 gives 20/56, which simplifies to 5/14.

Question 48General / Undifferentiated (official content domains not enumerated in source)

Which of the following sentences contains a dangling modifier?

  1. While walking down the road, I saw a snake.
  2. Walking down the road, a snake was seen by me. Correct answer.
  3. I saw a snake while I was walking down the road.
  4. Walking down the road, I saw a snake.

Explanation

A dangling modifier has no logical subject in the main clause to attach to. In the correct option the introductory phrase describes 'walking', but the main clause subject is 'a snake', which cannot walk.

Question 49General / Undifferentiated (official content domains not enumerated in source)

A body is thrown vertically upward with an initial speed of 20 m/s. Taking g as 10 m/s², what is the maximum height reached?

  1. 10 m
  2. 80 m
  3. 40 m
  4. 20 m Correct answer.

Explanation

At the highest point the velocity becomes zero, so using v² = u² − 2gh gives 0 = 400 − 20h. Solving yields h = 20 metres.

Question 50General / Undifferentiated (official content domains not enumerated in source)

In an economy, the marginal propensity to consume is 0.8. What is the value of the investment multiplier?

  1. 0.2
  2. 1.25
  3. 5 Correct answer.
  4. 4

Explanation

The multiplier equals 1 divided by (1 minus the marginal propensity to consume). With a propensity of 0.8, the denominator is 0.2, giving a multiplier of 5.