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Protista (Kingdom Protista) includes all unicellular eukaryotes such as Amoeba, Paramecium, Euglena, diatoms, and slime moulds. Monera and Archaea are prokaryotes (no true nucleus). Most Fungi are multicellular (except unicellular yeasts), and they belong to Kingdom Fungi, not Protista.

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Security Measures to Maintain Law and Order QUESTION #911

Question 505

If a strike by airport staff threatens to shut down flight operations, the ASF AD maintains order by:

Negotiating wages
Securing vital installations✔️
Arresting all strikers
Leaving the terminal

Correct Answer Logic:

Per Section 6, the ASF's duty is the security of installations and aerodromes, regardless of labor disputes.

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

Question 506

'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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English QUESTION #8336

Question 507

Could you _______ the pencil for me?

sharp
sharped
sharpen✔️
sharpening

Correct Answer Logic:

'Sharpen' is the verb form.

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Quantitative Reasoning QUESTION #8131

Question 508

Recent improvements in mountain-climbing equipment have made the sport both safer and more enjoyable for experienced climbers. Yet despite these advances, the rate of mountain-climbing injuries has doubled over the same period. Which of the following, if true, best resolves this apparent contradiction?

Many climbers feel a false sense of security and attempt feats beyond their skill level using the new equipment.✔️
Some mountain-climbing injuries result from unforeseeable weather conditions.
Mountain climbing does not normally result in injury to the experienced climber.
Improvements in technique have also occurred alongside equipment advances.

Correct Answer Logic:

The paradox: better equipment → more injuries. Option A resolves it perfectly: better equipment makes inexperienced climbers overconfident, leading them to attempt climbs beyond their ability, causing more injuries. This explains why injuries rose even though the equipment improved. Option B doesn't explain the doubling trend. Option C is irrelevant (it's about experienced climbers). Option D deepens, not resolves, the paradox.

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Physics and Math QUESTION #775

Question 509

If eccentricity $e > 1$, then the figure is:

Ellipse
Parabola
Circle
Hyperbola✔️

Correct Answer Logic:

For conic sections: $e = 0$ circle, $0 < e < 1$ ellipse, $e = 1$ parabola, $e > 1$ hyperbola.

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General Abilities QUESTION #4628

Question 510

What is $(-1)^{100}$?

$-1$
$1$✔️
$100$
$-100$

Correct Answer Logic:

Negative to even power is positive. $(-1)^{100} = 1$

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Reading and Writing (Module-1) QUESTION #5330

Question 511

In Wilde's novel, what does Lord Henry suggest is the result of resisting temptation?

The soul becomes sick with longing.✔️
One achieves spiritual enlightenment.
Temptation eventually disappears.
One becomes more disciplined.

Correct Answer Logic:

Lord Henry claims that resisting causes the soul to grow 'sick with longing.'

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General Abilities QUESTION #3968

Question 512

Calculate the value of the cube of $\frac{1}{3}$.

$\frac{3}{9}$✔️
$\frac{3}{27}$
$\frac{1}{81}$
$\frac{1}{27}$

Correct Answer Logic:

3

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General Abilities QUESTION #7660

Question 513

Meher saves Rs 4 in first week, Rs 13 in the second week, and Rs 22 in the third week. In which week will her savings reach Rs 130?

8th week
10th week✔️
12th week
None of these

Correct Answer Logic:

This is an arithmetic progression with first term $a = 4$ and common difference $d = 13 - 4 = 9$. The nth term is given by $a_n = a + (n-1)d = 4 + (n-1)9 = 130$. Solving: $9(n-1) = 126$, so $n-1 = 14$, giving $n = 15$. Wait, let me recalculate: $4 + 9(n-1) = 130$ gives $9n - 9 = 126$, so $9n = 135$ and $n = 15$. Hmm, this doesn't match options either. Actually, checking the pattern: Week 10 would be $4 + 9(9) = 4 + 81 = 85$, not 130. The answer appears to be beyond the given options.

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Home Economics QUESTION #6238

Question 514

A 'selvage' in textile science refers to:

The decorative embroidery
The finished edge of a fabric✔️
A type of synthetic dye
The width of the loom

Correct Answer Logic:

The selvage prevents the fabric from unraveling during the manufacturing process.

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Physics QUESTION #7069

Question 515

A solid object with a constant heat capacity of $1 \text{ J/}^\circ\text{C}$ is heated from $100^\circ\text{C}$ to $200^\circ\text{C}$. In Case A, it is placed in contact with 2 reservoirs sequentially. In Case B, it is placed in contact with 8 reservoirs sequentially. What is the entropy change of the body in these two cases respectively?

$\ln 2, 4\ln 2$
$\ln 2, \ln 2$✔️
$\ln 2, 2\ln 2$
$2\ln 2, 8\ln 2$

Correct Answer Logic:

Entropy is a state function. This means the change in entropy depends only on the initial and final states of the system, not on the path or the number of intermediate steps taken to reach that state.

Since the body is heated from an initial temperature $T_1 = 373 \text{ K}$ to a final temperature $T_2 = 473 \text{ K}$ in both cases, the entropy change $\Delta S$ of the body will be identical in both scenarios.

$\Delta S = \int \frac{dQ}{T} = \int_{T_1}^{T_2} \frac{ms dT}{T} = C \ln \left( \frac{T_2}{T_1} \right)$.

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General Knowledge QUESTION #8699

Question 516

Where is the Doaba Rachna region located, and between which two rivers?

Between Chenab and Jhelum
Between Chenab and Ravi✔️
Between Ravi and Beas
Between Indus and Chenab

Correct Answer Logic:

Doaba Rachna lies between the Chenab and Ravi rivers.

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General Knowledge QUESTION #8744

Question 517

Which discovery in 1928 brought a great revolution in medical history?

Vitamin C
Aspirin
Penicillin✔️
None above

Correct Answer Logic:

Alexander Fleming discovered penicillin in 1928.

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General Abilities QUESTION #4611

Question 518

What is $(3x)(4x)$?

$7x$
$12x$
$12x^2$✔️
$7x^2$

Correct Answer Logic:

Multiply coefficients and variables: $(3x)(4x) = 12x^2$

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Mathematics QUESTION #6939

Question 519

Let $S_n = 1+q+q^2+\cdots+q^n$ and $T_n = 1+\dfrac{q+1}{2}+\left(\dfrac{q+1}{2}\right)^2+\cdots+\left(\dfrac{q+1}{2}\right)^n$, where $q \in \mathbb{R},\ q\neq 1$. If ${}^{101}C_1 + {}^{101}C_2\cdot S_1 + \cdots + {}^{101}C_{101}\cdot S_{100} = \alpha\, T_{100}$, find $\alpha$.

$2^{99}$
202
200
$2^{100}$✔️

Correct Answer Logic:

$S_n = \dfrac{q^{n+1}-1}{q-1}$. The LHS sum involves $\sum_{k=1}^{101}\binom{101}{k}S_{k-1}$.

After substituting and applying binomial theorem: the sum simplifies using $\sum \binom{101}{k}\frac{q^k-1}{q-1}$.

The result evaluates to $\alpha T_{100}$ where $\alpha = 2^{100}$.

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General Knowledge QUESTION #8939

Question 520

What is 'Brain Drain'?

Emigration of skilled workers to other countries✔️
Emigration of intellectuals and technical personnel
Emigration of a lot of people
Lack of unity

Correct Answer Logic:

Brain drain is the emigration of highly skilled professionals.

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