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Sunday 26 May 2024

Biology MCQs Part 32 | NTS Biology MCQs With Answer

Pak MCQs Is Educational Website Providing All Types of MCQS  for All Exams and jobs employment test and specially for NTS, ECAT MCAT, CSS, PPSC, ETEA

Biology  Mcqs for Preparation specially for NTS, ECAT MCAT, CSS, PPSC, ETEA ,KPSC, EPPSC, PPSC, , and other test. here you will find Biology  mcqs.

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301.     What is the double membrane enclosing each lung called?

            (A) Pleura

            (B) Pericardium

            (C) Peritoneum

            (D) Meninges

302.     During inspiration, what happens to the diaphragm?

            (A) It relaxes

            (B) It contracts and becomes flat

            (C) It contracts and bulges

            (D) It remains unchanged

303.     What occurs during expiration?

            (A) Diaphragm contracts

            (B) Rib muscles contract

            (C) Chest cavity volume increases

            (D) Air is expelled out

304.     How many known carcinogens does tobacco smoke contain?

            (A) 29

            (B) 49

            (C) 69

            (D) 99

305.     Which substance in tobacco is responsible for staining and damaging lung tissue?

            (A) Nicotine

            (B) Tar

            (C) Benzene

            (D) Carbon monoxide

306.     What is one harmful effect of nicotine?

            (A) Decreased blood pressure

            (B) Increased oxygen levels

            (C) Increased heart rate

            (D) Improved digestion

307.     Which harmful substance in cigarettes prevents oxygen transportation by combining with red blood cells?

            (A) Nicotine

            (B) Tar

            (C) Carbon monoxide

            (D) Benzene

308.     Which condition is caused by inflammation or infection of the bronchi or bronchioles?

            (A) Emphysema

            (B) Pneumonia

            (C) Bronchitis

            (D) Asthma

309.     What happens to the walls of the alveoli in emphysema?

            (A) They become inflamed

            (B) They get infected

            (C) They get damaged

            (D) They expand

310.     What is the primary cause of pneumonia?

            (A) Viral infection

            (B) Bacterial infection

            (C) Inflammation due to allergens

            (D) Infection in the alveoli

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