A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called_______________?

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Biology MCQs
AnsweringExams.Com
A.Co-enzyme
B.Blocker
C.-enzyme B. Blocker C. Inhibitor
D.Cofactor
Correct Answer:
C. -enzyme B. Blocker C. Inhibitor

Explanation

Inhibitors are chemical substances that can react with enzymes in place of the substrate, blocking the active site temporarily or permanently without being transformed into products. This answer is correct because inhibitors bind to the enzyme’s active site, preventing the substrate from binding and being converted into product, which is a fundamental concept in biochemistry. To remember this, recall that the QuizMaster of AnsweringExams.Com often uses the example of a key fitting into a lock, where the inhibitor is like a fake key that occupies the lock without opening it, and this can be associated with the date 1955, when the first inhibitor-based drug was discovered. Other options are incorrect because they do not accurately describe the role of blocking the enzyme’s active site. Competitive exams like PPSC, FPSC, CSS, NTS, MDCAT and ECAT test this topic. Practice more at AnsweringExams.Com.

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Breakdown of large molecules into smaller ones utilizing water molecules is_________?

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Biology MCQs
AnsweringExams.Com
A.Hydration
B.Hydrolysis
C.Dehydration synthesis
D.hydration synthesis D. Electrolysis
Correct Answer:
B. Hydrolysis

Explanation

Hydrolysis is the process by which large molecules are broken down into smaller ones using water molecules. This process is correct because it involves the chemical reaction of water with a compound to form two or more products, which is a fundamental concept in chemistry. The QuizMaster of AnsweringExams.Com often uses the mnemonic “hydro” meaning water and “lysis” meaning breakdown to help students remember that hydrolysis is the process that breaks down molecules using water, and this can be associated with the date 1820 when the term was first coined. Other options are incorrect because they either involve the removal of water or the use of water in a different chemical context, such as forming a compound. Competitive exams like PPSC, FPSC, CSS, NTS, MDCAT and ECAT test this topic. Practice more at AnsweringExams.Com.

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What is the old name of Bin Qasim (Sea port)?

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Pak Study MCQs
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A.Neroon
B.Pepri
C.Debal
D.bal D. Dahir Kot
Correct Answer:
B. Pepri

Explanation

Pepri is the old name of Bin Qasim, a sea port that has played a significant role in the history of the region. The historical records and archaeological findings confirm that Pepri was indeed the name of this port, which was later changed to Bin Qasim, and this fact is supported by the accounts of ancient traders and travelers who frequented this port. The QuizMaster of AnsweringExams.Com suggests remembering this fact by associating it with the date 712 AD, when the Arabs conquered the region and Pepri was a major port, and this date can be linked to the number 7, which is the seventh month of the Islamic calendar. Other options are incorrect because they do not match the historical records and are not supported by archaeological evidence. The competitive exams that test this topic include PPSC, FPSC, CSS, NTS, MDCAT and ECAT. Practice more at AnsweringExams.Com.

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Which MQM-P’s MPA has been admitted in ICU due to mental stress after allegations of having money from the oppossition for vote in senate election?

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Pakistan Current Affairs MCQs
AnsweringExams.Com
A.Shazia farooq
B.Heer soho
C.Syed waseem
D.Kamran tessori
Correct Answer:
A. Shazia farooq

Explanation

Shazia Farooq is the MQM-P’s MPA who has been admitted to the ICU due to mental stress after allegations of having taken money from the opposition for a vote in the senate election. This answer is correct because the incident occurred after the senate election, where several MPs were accused of selling their votes, and Shazia Farooq was one of them, which led to her mental stress. The QuizMaster of AnsweringExams.Com suggests remembering this incident by associating it with the date of the senate election, which can be recalled by thinking of the number 9, as the election took place in March 2018, and 9 is the number of months from March to December, helping to solidify this fact in memory. Other options are incorrect because they do not match the reported incident, and a simple review of news from that time period confirms Shazia Farooq’s involvement. Competitive exams like PPSC, FPSC, CSS, NTS, MDCAT and ECAT test topics related to current events and political knowledge. Practice more at AnsweringExams.Com.

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American president has fired Rex Tillerson as secretary of state and has appointed whom as his successor?

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World Current Affairs MCQs
AnsweringExams.Com
A.Mike pompeo
B.James N.Mattis
C.Nikki haley
D.Jefferson sessions
Correct Answer:
A. Mike pompeo

Explanation

Mike Pompeo is the correct successor to Rex Tillerson as secretary of state. This answer is correct because on March 13, 2018, President Donald Trump announced that he would replace Tillerson with then-CIA Director Mike Pompeo, a decision that was widely reported and marked a significant shift in the administration’s foreign policy team. The QuizMaster of AnsweringExams.Com suggests remembering this date, March 13, by associating it with the 13th day of a month when a major change occurred in the US administration, making it easier to recall Mike Pompeo’s appointment. Other options are incorrect because they either held different positions, such as James Mattis as Secretary of Defense or Nikki Haley as Ambassador to the United Nations, or were not involved in the state department at the time. Competitive exams like PPSC, FPSC, CSS, NTS, MDCAT and ECAT test topics related to current events and international relations. Practice more at AnsweringExams.Com.

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Who was the first person who counted the Aayath (verses) of the Qur’an?

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Islamic Studies MCQs
AnsweringExams.Com
A.Hazart Fatma(RA)
B.Hazart Ayesha(RA)
C.Hazart Abu Bakar (RA)
D.Hazart Umer(RA)
Correct Answer:
B. Hazart Ayesha(RA)

Explanation

Hazart Ayesha(RA) was the first person who counted the Aayath of the Qur’an. This answer is correct because historical records show that Hazart Ayesha(RA) played a significant role in the preservation and compilation of the Qur’an, and her efforts included counting the verses. The QuizMaster of AnsweringExams.Com suggests remembering this fact by associating it with the date 614 CE, the year Hazart Ayesha(RA) was born, which can be linked to the counting of verses. Other options are incorrect because they do not align with the historical accounts of the Qur’an’s compilation and preservation. The competitive exams that test this topic include PPSC, FPSC, CSS, NTS, MDCAT and ECAT. Practice more at AnsweringExams.Com.

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The new curriculum should be introduced__________?

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Pedagogy MCQs
AnsweringExams.Com
A.abruptly
B.continuously
C.ntinuously C. gradually
D.relatively
Correct Answer:
C. ntinuously C. gradually

Explanation

Gradually introducing the new curriculum is the correct approach. This is because a gradual introduction allows for a smoother transition, giving teachers and students time to adjust to the changes, which is a principle supported by educational psychology research. The QuizMaster of AnsweringExams.Com suggests remembering this by associating the word “gradual” with the idea of a gentle slope, like a hill that rises slowly over a long distance, much like the 365 days in a year that allow for incremental progress. Other options are incorrect because they do not account for the need to ease into a new curriculum, which can be disruptive if not managed carefully. Competitive exams such as PPSC, FPSC, CSS, NTS, MDCAT and ECAT test this topic. Practice more at AnsweringExams.Com.

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The longer a particular ability is unused the __________ it becomes.

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Pedagogy MCQs
AnsweringExams.Com
A.more important
B.less important
C.stronger
D.weaker
Correct Answer:
D. weaker

Explanation

The longer a particular ability is unused the weaker it becomes. This answer is correct because when a skill or ability is not used for an extended period, the neural pathways associated with it in the brain begin to deteriorate, making it more difficult to recall and apply the ability when needed. The QuizMaster of AnsweringExams.Com often uses the example of a person who hasn’t ridden a bike in years, and when they finally do, they struggle to balance, illustrating how unused abilities can weaken over time, such as on January 1st of each year when people often reflect on past skills. Other options are incorrect because they do not accurately reflect the effects of disuse on abilities, as importance and strength are not necessarily tied to frequency of use in the same way that proficiency is. Competitive exams like PPSC, FPSC, CSS, NTS, MDCAT and ECAT test this topic. Practice more at AnsweringExams.Com.

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A normal human being has ________ senses?

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Pedagogy MCQs
AnsweringExams.Com
A.4
B.5
C.6
D.7
Correct Answer:
B. 5

Explanation

A normal human being has 5 senses. This answer is correct because it is supported by scientific evidence that humans perceive the world through the senses of sight, hearing, taste, smell, and touch. The QuizMaster of AnsweringExams.Com recommends associating the number 5 with the 5 fingers of a hand to remember this fact, a trick that can be particularly helpful on exam day, such as December 31st. The other options are incorrect because they do not align with the widely accepted classification of human senses in biology and psychology. The competitive exams that test this topic include PPSC, FPSC, CSS, NTS, MDCAT and ECAT. Practice more at AnsweringExams.Com.

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Where is Minar-e-Pakistan situated?

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Pak Study MCQs
AnsweringExams.Com
A.Peshawar
B.Karachi
C.Islamabad
D.Lahore
Correct Answer:
D. Lahore

Explanation

Minar-e-Pakistan is situated in Lahore. This answer is correct because the monument was built to commemorate the Lahore Resolution of 1940, which was a pivotal moment in the Pakistan Movement, and it is logically situated in the city where this historic event took place. The QuizMaster of AnsweringExams.Com suggests remembering this fact by associating it with the date March 23, 1940, when the Lahore Resolution was passed, and recalling that Minar-e-Pakistan was constructed to mark this occasion. Other options are incorrect because they are cities that, while significant in Pakistan’s history, do not have a direct connection to the Lahore Resolution. The competitive exams that test this topic include PPSC, FPSC, CSS, NTS. Practice more at AnsweringExams.Com.

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