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A state function depends only on the current state of a system, not on the path taken. Internal energy ($U$), pressure ($P$), and volume ($V$) are all state functions. Heat ($Q$) is a path function — it depends on the process by which energy is transferred, not just the initial and final states.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3145

Question 3564

The inner lining of the uterus that is shed during menstruation is the:

Myometrium
Perimetrium
Endometrium✔️
Epimetrium

Correct Answer Logic:

The endometrium thickens each month in preparation for pregnancy.

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City and Regional Planning QUESTION #5001

Question 3565

What is the primary purpose of Environmental Auditing in project management?

Initial impact prediction
Ongoing compliance verification✔️
Post-project evaluation only
Stakeholder consultation

Correct Answer Logic:

Environmental Auditing is a systematic, periodic verification process ensuring ongoing compliance with environmental standards, regulations, and management plans during project operation—distinct from initial EIA (prediction) or post-implementation evaluation.

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Basic Mathematics QUESTION #4572

Question 3566

The average of $x, y, z$ is $15$. What is $x + y + z$?

$15$
$30$
$45$✔️
Cannot determine

Correct Answer Logic:

If average = $15$, then $\frac{x+y+z}{3} = 15$, so $x+y+z = 45$

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Basic Mathematics QUESTION #4514

Question 3567

What is the value of $3^0$?

$0$
$1$✔️
$3$
Undefined

Correct Answer Logic:

Any non-zero number raised to power $0$ equals $1$. Therefore, $3^0 = 1$

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Biomedical Sciences QUESTION #3810

Question 3568

Which lymphoid organ has the primary function of T-cell maturation and plays a central role in adaptive immune system development?

Pancreas
Thyroid
Liver
Thymus✔️

Correct Answer Logic:

The thymus is the site where T-lymphocytes mature, differentiate, and acquire immune competence. It is essential for the development of the adaptive cellular immune response.

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Basic Mathematics QUESTION #4597

Question 3569

Expand: $(x - 4)(x + 4)$

$x^2 - 16$✔️
$x^2 + 16$
$x^2 - 8x + 16$
$2x$

Correct Answer Logic:

Using $(a-b)(a+b) = a^2 - b^2$: $(x-4)(x+4) = x^2 - 16$

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3423

Question 3570

'Beri-beri' is a disease caused by the deficiency of:

Vitamin B1 (Thiamine)✔️
Vitamin B2 (Riboflavin)
Vitamin B3 (Niacin)
Vitamin B12

Correct Answer Logic:

Common in populations relying heavily on polished rice.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3673

Question 3571

Which drug is an 'Expectorant' (helps clear mucus)?

Senna
Vasaka (Adhatoda)✔️
Aloe
Castor oil

Correct Answer Logic:

Vasaka is a traditional remedy for bronchitis and cough.

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Urdu QUESTION #5117

Question 3572

'تم مرے پاس ہوتے ہو گویا جب کوئی دوسرا نہیں ہوتا' یہ شعر کس کا ہے؟

غالب
مومن خان مومن✔️
فیض احمد فیض
ان میں سے کوئی نہیں

Correct Answer Logic:

یہ مشہور شعر مومن خان مومن کا ہے جو اردو غزل کے بڑے استادوں میں شمار ہوتے ہیں۔

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Civil Engineering QUESTION #2125

Question 3573

Bernoulli's equation for steady, incompressible, inviscid flow along a streamline is $\dfrac{p}{\rho g} + \dfrac{V^2}{2g} + z = \text{constant}$. The term $\dfrac{V^2}{2g}$ represents:

Pressure head
Velocity head (kinetic energy per unit weight of fluid)✔️
Elevation head
Total energy head

Correct Answer Logic:

In Bernoulli's equation, each term has units of length (head): $\dfrac{p}{\rho g}$ = pressure head; $\dfrac{V^2}{2g}$ = velocity head (kinetic energy per unit weight); $z$ = elevation (potential energy per unit weight); total = piezometric + velocity head = total energy head. Velocity head represents kinetic energy — it converts to pressure head at stagnation points (Pitot tube principle).

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Biology Zoology Botany QUESTION #1348

Question 3574

The evolution of ecologically related species is sometimes co-ordinated such that each species exerts a strong selective influence on others. This is:

Coexistence
Coevolution✔️
Mutualism
None of these

Correct Answer Logic:

Coevolution is the process by which two or more species reciprocally affect each other's evolution through natural selection. Classic examples include plant-pollinator relationships, predator-prey arms races, and host-parasite interactions. Mutualism is a type of symbiosis (both benefit) that can result from coevolution, but coevolution is the broader evolutionary process.

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Chemistry QUESTION #1020

Question 3575

Arrange $\text{HBr}$, $\text{H}_2\text{S}$, $\text{NF}_3$ and $\text{CHCl}_3$ in increasing order of their dipole moment:

$\text{H}_2\text{S} < \text{HBr} < \text{NF}_3 < \text{CHCl}_3$
$\text{NF}_3 < \text{HBr} < \text{H}_2\text{S} < \text{CHCl}_3$✔️
$\text{HBr} < \text{H}_2\text{S} < \text{NF}_3 < \text{CHCl}_3$
$\text{CHCl}_3 < \text{NF}_3 < \text{HBr} < \text{H}_2\text{S}$

Correct Answer Logic:

Dipole moments (approx): $\text{NF}_3\approx0.24\ \text{D}$ (F pulls away from N lone pair, net dipole is small); $\text{HBr}\approx0.82\ \text{D}$; $\text{H}_2\text{S}\approx0.97\ \text{D}$; $\text{CHCl}_3\approx1.87\ \text{D}$. Increasing order: $\text{NF}_3 < \text{HBr} < \text{H}_2\text{S} < \text{CHCl}_3$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3268

Question 3576

'Antidiuretic Hormone' (ADH) is synthesized in the:

Posterior Pituitary
Anterior Pituitary
Hypothalamus✔️
Adrenal Gland

Correct Answer Logic:

It is produced in the hypothalamus but stored and released by the posterior pituitary.

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Urdu QUESTION #5183

Question 3577

بالِ جبریل کب چھپی؟

1932
1933
1935✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

بالِ جبریل 1935ء میں شائع ہوئی۔ یہ علامہ اقبال کا اردو شاعری کا دوسرا مجموعہ ہے۔

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Urdu QUESTION #5038

Question 3578

'جوتیاں چٹخانا' محاورے کا مفہوم کیا ہے؟

نئی جوتی زیب پا کرنا
جوتیاں بغل میں دے لینا
ڈرانا دھمکانا
مارے مارے پھرنا✔️

Correct Answer Logic:

جوتیاں چٹخانا محاورے کا مطلب ہے بے مقصد مارے مارے پھرنا۔

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General Knowledge QUESTION #2600

Question 3579

In a computer's processor, logic gates are important because they:

Store permanent data on hard drives for long-term use
Allow transistors to do more complex tasks, such as deciding where to send electrical signals depending on logical conditions✔️
Connect computers to the internet through wireless signals
Display color images on computer monitors

Correct Answer Logic:

Logic gates allow transistors to do more complex tasks, like deciding where to send electrical signals depending on logical conditions (AND, OR, NOT etc.). They are the fundamental building blocks of all digital processors and circuits.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3366

Question 3580

'Coagulase' is an enzyme produced by *Staph. aureus* to:

Break down DNA
Clot blood plasma (hiding from the immune system)✔️
Move faster
Produce energy

Correct Answer Logic:

The clot provides a protective barrier for the bacteria.

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