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Dairy Food Science and Technology QUESTION #5884

The Maillard reaction in milk products is accelerated by:

Low temperature and low $\text{pH}$
Reducing sugars (lactose) reacting with amino groups at high temperatures and $\text{pH}\; 6\text{–}8$✔️
Fat oxidation at refrigeration temperatures
Calcium precipitation during UHT treatment

Correct Answer Logic:

The Maillard reaction involves nucleophilic addition of amino groups (lysine $\varepsilon$-amino groups) to the carbonyl group of reducing sugars (lactose). It is promoted by elevated temperature, reduced $a_w$, and neutral to alkaline $\text{pH}$, causing browning and flavor changes in UHT milk and milk powder.

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Reading and Writing (Module-1) QUESTION #10456

Question 11282

Rather than ------- the harsh reviews, the young director treated them as ------- feedback that could sharpen her craft.

embracing . . useless
resenting . . valuable✔️
soliciting . . irrelevant
welcoming . . damaging

Correct Answer Logic:

'Rather than resenting' the reviews, she treated them as 'valuable' feedback.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3259

Question 11283

Which enzyme breaks down 'Proteins' in the highly acidic environment of the stomach?

Amylase
Lipase
Pepsin✔️
Trypsin

Correct Answer Logic:

Pepsinogen is converted to active pepsin by stomach acid ($HCl$).

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Academic/Professional (Social Sciences) QUESTION #10121

Question 11284

Non-material culture includes:

Tools and technology
Beliefs, norms, and values✔️
Buildings and infrastructure
Clothing and food

Correct Answer Logic:

Non-material culture comprises the intangible aspects of culture such as beliefs, norms, and values.

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Chemistry QUESTION #7382

Question 11285

Which atomic model described the atom as a sphere of uniform positive charge with electrons embedded in it to give a stable arrangement?

Thomson's atomic model✔️
Rutherford's atomic model
Bohr's atomic model
Chadwick's atomic model

Correct Answer Logic:

Thomson's 'plum pudding' model (1904) proposed that the atom is a sphere of diffuse positive charge with electrons embedded throughout like plums in a pudding. This model was disproved by Rutherford's gold foil experiment (1911), which showed that positive charge is concentrated in a tiny dense nucleus, with electrons orbiting at large distances.

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English QUESTION #2768

Question 11286

What does the idiom 'BITE THE BULLET' mean? (Note: An idiom is an expression whose meaning is different from the literal meaning of its words)

To eat something hard
To endure a difficult situation bravely✔️
To speak harshly to someone
To make a quick decision

Correct Answer Logic:

'Bite the bullet' is an idiom meaning to endure a painful or difficult situation with courage. It does not literally involve biting a bullet. Example: 'I didn't want to go to the dentist, but I bit the bullet and went.'

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3112

Question 11287

Which organ produces 'Bile', which is essential for the digestion of fats?

Stomach
Pancreas
Liver✔️
Gallbladder

Correct Answer Logic:

The liver produces bile; the gallbladder stores and concentrates it.

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The Constitution of Pakistan QUESTION #9363

Question 11288

Under Article 63A(3)-(4), after the Presiding Officer refers a defection declaration to the Chief Election Commissioner, within how many days must the Election Commission decide?

Fifteen days
Thirty days✔️
Sixty days
Ninety days

Correct Answer Logic:

Article 63A(3) requires the Presiding Officer to refer within two days (deemed referred if not done). The Chief Election Commissioner then places it before the Election Commission which must decide within 30 days. An appeal against the Election Commission's decision lies to the Federal Constitutional Court, which decides within 90 days.

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MBBS QUESTION #10232

Question 11289

Lambert-Eaton myasthenic syndrome, often paraneoplastic (associated with small cell lung cancer), differs from myasthenia gravis in that its autoantibodies target:

Postsynaptic acetylcholine receptors
Presynaptic voltage-gated calcium channels, impairing calcium-dependent acetylcholine vesicle release✔️
Muscle-specific kinase (MuSK) exclusively
The motor end-plate acetylcholinesterase enzyme

Correct Answer Logic:

In Lambert-Eaton syndrome, antibodies against presynaptic voltage-gated calcium channels impair ACh release; unlike myasthenia gravis, strength characteristically improves with repeated muscle use (as residual calcium accumulates presynaptically), a key clinical distinguishing feature.

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Math Physics Chemistry Biology QUESTION #11432

Question 11290

Skeletal muscles are long and spindle-shaped with nuclei on the side:

Multiple✔️
Few
Single
Many

Correct Answer Logic:

Skeletal muscle fibers are multinucleate (multiple nuclei) syncytia formed by fusion of many myoblasts during development. The nuclei are peripherally located (just beneath the sarcolemma). This multinucleate arrangement allows coordinated regulation of the large volume of cytoplasm in these long muscle cells.

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Psychology QUESTION #11368

Question 11291

Environmental factors are responsible for development; the term used for this phenomenon is called:

Nature
Nurture✔️
Naturalistic
Simulation

Correct Answer Logic:

The term used for the phenomenon where environmental factors are responsible for development is Nurture.

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Boilers Mechanical Engineering QUESTION #2510

Question 11292

For a state of plane stress $(\sigma_x, \sigma_y, \tau_{xy})$, the maximum in-plane shear stress is:

$\tau_{max} = \sqrt{\left(\frac{\sigma_x - \sigma_y}{2}\right)^2 + \tau_{xy}^2}$✔️
$\tau_{max} = \frac{\sigma_x + \sigma_y}{2}$
$\tau_{max} = \sigma_x - \sigma_y$
$\tau_{max} = \tau_{xy}$

Correct Answer Logic:

The maximum in-plane shear stress equals the radius of Mohr's circle: $\tau_{max}=\sqrt{\left(\frac{\sigma_x-\sigma_y}{2}\right)^2+\tau_{xy}^2}$.

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MCQs Section QUESTION #4873

Question 11293

Correct antonym of "COVENANT" is

Prayer
Debate✔️
Garden
Agreement

Correct Answer Logic:

A covenant is a formal, solemn agreement or contract. Its antonym here is 'debate,' implying disagreement or dispute rather than a settled agreement.

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Tourism & Hospitality Management QUESTION #1592

Question 11294

Which type of tourism involves visiting natural environments with a focus on conservation, local benefit, and environmental education, and is listed as a neotourism form in the Pakistan Tourist Destinations course?

Sports and adventure tourism
MICE tourism
Ecotourism✔️
Gastronomic tourism

Correct Answer Logic:

Ecotourism is specifically listed under the Neotourism module of the Pakistan Tourist Destinations course alongside Medical Tourism, Camping Tourism, MICE Tourism, and Pilgrimage Tourism as an emerging tourism form characterized by nature-based experiences, conservation focus, and local community benefit.

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Ability / HR / Governance / Special Education QUESTION #1884

Question 11295

Under Rule 5(1)(i) when the Authority is the President or Prime Minister who exercises the powers of the authority regarding suspension/leave?

The Federal Cabinet
The Chairman Senate
The Secretary Establishment Division✔️
The Chief Justice of Pakistan

Correct Answer Logic:

The proviso to Rule 5(1)(i) specifically states that where the authority is the President or Prime Minister these powers shall be exercised by the Secretary Establishment Division.

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Population Health and Ethics QUESTION #3929

Question 11296

A 50-year-old male patient asks about colorectal cancer screening. He has no symptoms and no family history of the disease. Which of the following is the recommended screening method for him?

Faecal occult blood test (FOBT) every two years✔️
Colonoscopy every ten years
Flexible sigmoidoscopy every five years
CT colonography every five years

Correct Answer Logic:

No explanation provided for this question.

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Physics QUESTION #1031

Question 11297

A particle of mass $m$ moves around the origin under constant force $F$ towards origin. Using Bohr model, how do radius $r$ of $n$th orbit and speed $v$ depend on $n$?

$r \propto n^{2/3};\ v \propto n^{1/3}$✔️
$r \propto n^{4/3};\ v \propto n^{-1/3}$
$r \propto n^{1/3};\ v \propto n^{1/3}$
$r \propto n^{1/3};\ v \propto n^{2/3}$

Correct Answer Logic:

For circular orbit under constant force: $F = \frac{mv^2}{r}\Rightarrow v^2 = \frac{Fr}{m}$. Bohr quantization: $mvr = \frac{nh}{2\pi}\Rightarrow v = \frac{nh}{2\pi mr}$. Substituting: $\frac{F r}{m} = \frac{n^2h^2}{4\pi^2m^2r^2}\Rightarrow r^3 \propto n^2\Rightarrow r \propto n^{2/3}$. Then $v \propto \frac{n}{r} \propto \frac{n}{n^{2/3}} = n^{1/3}$.

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Home Economics QUESTION #6258

Question 11298

'Feedback' in the communication process is important because it:

Increases the cost of communication
Ensures the message was understood✔️
Distorts the original message
Replaces the sender

Correct Answer Logic:

Feedback completes the communication loop by confirming the receiver's response.

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The Elections Act 2017 QUESTION #9453

Question 11299

Under Section 122(3), each voter in a Senate election has how many transferable votes for each category of seats, irrespective of the number of seats to be filled?

Two transferable votes
A number of votes equal to the seats to be filled
Only one transferable vote✔️
Three transferable votes

Correct Answer Logic:

Section 122(3) states: 'Each voter shall have only one transferable vote for each category of seats irrespective of the number of seats to be filled for such category.'

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Administration QUESTION #9553

Question 11300

The 1973 Constitution defines 'State' in Article 7 to include federal and provincial governments, assemblies, and tax-levying authorities. What is the significance of this definition for understanding the relationship between 'government' and 'state' in Pakistani constitutional theory?

Government and state are synonymous — both refer to the permanent institutional framework that exercises sovereign authority
State institutions are permanent and fixed; government is the transient body of elected representatives and career civil servants who occupy and operate those institutions within a five-year electoral cycle✔️
State refers only to elected organs (legislature, executive); permanent civil service is a separate branch not included within the constitutional definition of state
The state includes only federal-level institutions; provincial governments operate as autonomous entities not subject to the state definition

Correct Answer Logic:

The Constitution distinguishes state (permanent institutional framework: governments, assemblies, courts, tax authorities) from government (the elected/appointed people who temporarily occupy those institutions). Governments change after elections every five years; the state endures. This distinction has practical importance for understanding institutional continuity, civil service permanence, and constitutional accountability.

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