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Biology QUESTION #7238

Moss peat is used as a packing material for sending flowers and live plants to distant places because:

It reduces transpiration
It serves as a disinfectant
It is easily available
It is hygroscopic✔️

Correct Answer Logic:

Moss peat (mainly Sphagnum) is hygroscopic — it absorbs and retains large amounts of water. This keeps plants moist during transport. It can hold water up to 18–20 times its dry weight, making it ideal packing for live plant material.

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Maths QUESTION #7964

Question 22

5448 rounded off to the nearest 1000 is:

6000
5400
5000✔️
4500

Correct Answer Logic:

\(5448\) is between 5000 and 6000. Since \(448 < 500\), it rounds down to \(5000\).

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Math Physics Chemistry Biology QUESTION #11403

Question 23

Which of the following molecules would yield glucose and fructose on hydrolysis?

Starch
Lactose
Glycogen
Sucrose✔️

Correct Answer Logic:

Sucrose is a disaccharide formed by a glycosidic bond between glucose and fructose. Hydrolysis (by sucrase/invertase) breaks this bond, yielding one molecule of glucose and one of fructose. Lactose yields glucose + galactose; starch and glycogen yield glucose only.

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MCQs Section QUESTION #5072

Question 24

یوسفِ بے کارواں کا مفہوم کیا ہے؟

مظلوم و ستم زدہ✔️
اکیلا
لاثانی
رہبر و راہنما

Correct Answer Logic:

یوسفِ بے کارواں سے مراد وہ شخص ہے جو ستم زدہ اور مظلوم ہو۔

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Math Physics Chemistry Biology QUESTION #7742

Question 25

What happens to calcium ions when a skeletal muscle recovers (relaxes) after contraction?

Released from SR
Released from myosin head
Pumped into SR✔️
Exchanged for sodium

Correct Answer Logic:

During relaxation, Ca²⁺ is actively pumped back into the sarcoplasmic reticulum (SR) via Ca²⁺-ATPase (SERCA), lowering cytosolic Ca²⁺ and allowing tropomyosin to block myosin-binding sites.

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English QUESTION #7632

Question 26

My sister and I have blue eyes. It _____ in the family.

runs✔️
comes
goes
None of these

Correct Answer Logic:

The phrase 'runs in the family' is an idiomatic expression used to describe inherited traits or characteristics that are common among family members. Physical features like eye color are genetic traits that 'run in the family'.

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Constitutional Law QUESTION #5830

Question 27

Congress passes a law that prohibits the possession of firearms within 1,000 feet of a school. Does Congress have the power to pass this law?

Yes, under the Commerce Clause, because firearms involve interstate commerce.
Yes, under the Police Power of the federal government.
No, because the law does not involve an activity that 'substantially affects' interstate commerce.✔️
No, because the Second Amendment prohibits all gun-free zone laws.

Correct Answer Logic:

In United States v. Lopez, the Court held that the Gun-Free School Zones Act exceeded Congress's Commerce Clause power because the mere possession of a gun in a school zone is a non-economic activity that does not 'substantially affect' interstate commerce.

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English QUESTION #2711

Question 28

Choose the meaning of: 'Look after'

To search
To take care of✔️
To resemble
To ignore

Correct Answer Logic:

To 'look after' someone or something is to provide care for them.

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Ability / HR / Governance / Special Education QUESTION #1909

Question 29

Under Rule 2(1)(xviii) the term 'Secretary' includes which of the following officers when there is no Secretary in charge of a Division?

Deputy Secretary
Section Officer
Additional Secretary Senior Joint Secretary or Joint Secretary in charge of the Division or Ministry✔️
Under Secretary

Correct Answer Logic:

Rule 2(1)(xviii) states that where there is no Secretary the term Secretary means the Additional Secretary Senior Joint Secretary or Joint Secretary in charge of the Division or Ministry.

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English Literature QUESTION #10763

Question 30

The title of Sir Philip Sidney's pastoral romance written in prose is:

Utopia
Arcadia✔️
Hydriotaphia
Lamia

Correct Answer Logic:

Sir Philip Sidney wrote Arcadia (originally called The Countess of Pembroke's Arcadia, written c.1580, published 1590). It is a lengthy prose romance mixing pastoral and heroic elements, written for his sister Mary Herbert, Countess of Pembroke. Utopia is by Thomas More; Hydriotaphia (Urn Burial) is by Sir Thomas Browne; Lamia is a poem by Keats.

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Mathematics QUESTION #7429

Question 31

If the lines \(\frac{x-2}{1} = \frac{y-3}{1} = \frac{z-4}{-k}\) and \(\frac{x-1}{k} = \frac{y-4}{2} = \frac{z-5}{1}\) are coplanar, then k can have:

any value
exactly one value
exactly two values✔️
exactly three values

Correct Answer Logic:

For two lines to be coplanar, the scalar triple product of their direction ratios and the vector joining points on the lines must be zero. The direction ratios are \((1, 1, -k)\) and \((k, 2, 1)\). A point on the first line is \((2, 3, 4)\) and on the second is \((1, 4, 5)\). The vector joining them is \((-1, 1, 1)\). Setting up the determinant: \(\begin{vmatrix} -1 & 1 & 1 \\ 1 & 1 & -k \\ k & 2 & 1 \end{vmatrix} = 0\). Expanding: \(-1(1+2k) - 1(1+k^2) + 1(2-k) = 0\), which simplifies to \(k^2 + 3k = 0\), giving \(k = 0\) or \(k = -3\). Thus, k has exactly two values.

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Biology Zoology Botany QUESTION #1362

Question 32

Which of the following is NOT a characteristic of algae?

Autotrophic
Multicellular
Lack true roots, stems, and leaves
All algae are microscopic✔️

Correct Answer Logic:

Not all algae are microscopic — this is the FALSE statement. Giant kelp (Macrocystis pyrifera) can grow up to 60 metres long. Algae are autotrophic (mostly), lack true roots/stems/leaves (they have thallus), and can be unicellular or multicellular. The statement that 'all algae are microscopic' is incorrect.

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MBBS QUESTION #10267

Question 33

Gastrin, secreted by G cells of the gastric antrum in response to luminal peptides and vagal stimulation, primarily acts to:

Stimulate gastric acid secretion by parietal cells (directly and via histamine release from ECL cells)✔️
Stimulate bicarbonate secretion from pancreatic duct cells
Stimulate bile secretion directly from hepatocytes
Stimulate insulin secretion from pancreatic beta cells

Correct Answer Logic:

Gastrin is the principal hormonal stimulus for gastric acid secretion, acting both directly on parietal cell CCK-B receptors and indirectly by stimulating enterochromaffin-like (ECL) cells to release histamine, which further potentiates acid secretion.

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Accounting & Finance QUESTION #6189

Question 34

In a corporate environment, the 'Double Taxation' disadvantage refers to:

Paying both state and federal taxes.
Taxing corporate profits and then taxing distributed dividends as personal income.✔️
Paying sales tax on inputs and outputs.
Taxing both the company and its employees' salaries.

Correct Answer Logic:

Corporations pay tax on earnings, and shareholders pay tax again on the dividends they receive [cite: 9].

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Education QUESTION #6784

Question 35

A test item reads: 'Which of the following is NOT an example of formative assessment?' with correct answer option 'Final examination'. A student incorrectly answers 'Weekly quiz'. According to item analysis in CTT, if students with high total test scores systematically choose 'weekly quiz' as their answer, what does the discrimination index likely indicate?

A high positive D value, indicating the item works well
A negative D value, indicating that the item functions in reverse — high achievers are misled while lower achievers answer correctly — suggesting the item needs immediate review✔️
A D value near 0, indicating the item has no differential effect
A D value above 0.40, indicating excellent item quality

Correct Answer Logic:

If high-scoring students are more likely to answer incorrectly than low-scoring students, the item discrimination index D = (Upper Group % Correct) – (Lower Group % Correct) will be negative. Negative D values are the most serious item analysis warning sign, typically indicating a keying error, ambiguous wording, or a misleading clue that advantageously targets lower-ability guessers over informed higher-ability students.

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General Knowledge QUESTION #8787

Question 36

Which of the following is a necessary result of inflation?

A rise in the exchange rate
An increase in the value of money
A reduction in the value of money (purchasing power)✔️
Less money is printed

Correct Answer Logic:

Inflation reduces the purchasing power of currency.

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MBBS QUESTION #10205

Question 37

A newborn boy is noted to have an empty scrotum with the testis palpable at a point along its normal path of descent. If the testis has failed to complete its descent by birth, it is most commonly arrested within which structure?

The inguinal canal✔️
The pelvic cavity, near the bladder
It has descended fully into the scrotum
The retroperitoneum, near the kidney

Correct Answer Logic:

Cryptorchidism most commonly involves arrest of testicular descent within the inguinal canal, reflecting incomplete traction/guidance by the gubernaculum; undescended testes carry an increased risk of infertility and germ cell tumors if uncorrected.

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Ability / HR / Governance / Special Education QUESTION #1916

Question 38

Under Rule 8(1) when a case concerns more than one Division the Division in charge must consult other Divisions and no orders shall issue until all Divisions have been consulted. Under what condition can this requirement be dispensed with?

With the approval of the Cabinet
With the approval of the Prime Minister in cases of urgency✔️
With the approval of the Secretary concerned
With the approval of the Finance Division

Correct Answer Logic:

The proviso to Rule 8(1) states that in cases of urgency and with the approval of the Prime Minister this consultation requirement may be dispensed with but the case must be brought to other Divisions at the earliest opportunity.

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Political Science QUESTION #6692

Question 39

The concept of 'Rule of Law' was popularized by which British jurist?

John Locke
A.V. Dicey✔️
Jeremy Bentham
None of these

Correct Answer Logic:

Albert Venn Dicey is famous for his exposition of the Rule of Law in his work on the UK Constitution.

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Maths QUESTION #2816

Question 40

Find the average of the first 20 natural numbers.

9.5
10
10.5✔️
11

Correct Answer Logic:

Sum of first \(n\) natural numbers \(= \dfrac{n(n+1)}{2} = \dfrac{20 \times 21}{2} = 210\). Average \(= \dfrac{210}{20} = 10.5\).

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