General Science Questions (MCQs) for Competitive Examinations

General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.

41.Finger bones are also known as __?

[A] Hamate bone
[B] Girdles
[C] Phalanges
[D] Metacarpal

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Correct Answer: C [Phalanges]

The phalanges of the hands are the tubular bones of the fingers and thumb.

42.Bowman’s capsule and tubule together form what in the kidney?

[A] Capillaries
[B] Nephron
[C] Glomerulus
[D] Urine Collecting duct

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Correct Answer: B [Nephron]

Bowman’s capsule and tubule together form Nephron in the kidney. Nephrons are the functional units of the kidney. Each nephron has two parts – the glomerulus and the renal tubule.

43.What are the major functions of the kidney?

  1. Maintains the body’s pH
  2. Reabsorption of nutrients
  3. Transporting oxygen and nutrients
  4. Removal of excess fluid from the body

Select the codes above:

[A] Only 1 and 2
[B] Only 2 and 3
[C] Only 1, 2 and 4
[D] 1,2.3 and 4

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Correct Answer: C [Only 1, 2 and 4]

The major functions of the kidney are:
1. Maintains the pH of the body
2. Reabsorption of nutrients
3. Controls blood pressure
4. Excretion of waste from the body
5. Removal of excess fluid from the body
6. Secreted hormones that help in red blood cell production, acid regulation, etc.
Note: Transporting oxygen and nutrients to the lungs and tissues is a function of blood.

44.What is the smallest functional component of the human excretory system?

[A] bladder
[B] kidney
[C] nephron
[D] None of these

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Correct Answer: D [None of these]

A nephron is the smallest functional component of the human excretory system.

45.Which of the following helps to protect the stomach wall from its secretion of hydrochloric acid?

[A] Pepsin
[B] Trypsin
[C] Amylase
[D] Mucus

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Correct Answer: D [Mucus]

Mucus helps to protect the stomach wall from its secretion of hydrochloric acid.

46.Where is the liver located in the human body?

[A] Beside pancreas
[B] Besides heart
[C] Besides kidney
[D] Above the abdominal cavity

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Correct Answer: D [Above the abdominal cavity]

The liver is located Above the abdominal cavity in the human body.

47.Which of the following is not a symptom of rinderpest?

[A] dysentery
[B] fever
[C] overcrowding
[D] blue urine

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Correct Answer: D [blue urine]

Symptoms of rinderpest include constipation with hard stools containing fever, dysentery or blood, discharge from the eyes and nose, anorexia, leukopenia followed by diarrhea or diarrhea with an unpleasant odor.

48.Whooping cough is caused by which of the following causative agent?

[A] Pasteurella pestis
[B] Clostridium tetani
[C] Bordetella pertussis
[D] Human papillomavirus

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Correct Answer: C [Bordetella pertussis]

Whooping cough is caused by Bordetella pertussis causative agent. It is a Gram-negative, aerobic, pathogenic, and encapsulated coccobacillus of the genus Bordetella.

49.What is commonly known as white plague?

[A] Typhoid
[B] Malaria
[C] Tuberculosis
[D] Plague

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Correct Answer: C [Tuberculosis]

Tuberculosis caused by Mycobacterium tuberculie which primarily affects lungs although can affect other body too while early 19th century was called ‘white plague’ because of the large number of the people dying of its infection.

50.Which among the following carries impure blood to human heart?

[A] Pulmonary arteries
[B] Pulmonary vein
[C] Vena Cava
[D] Aorta

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Correct Answer: A [Pulmonary arteries]

A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs. The pulmonary arteries are unique in that unlike most arteries which carry oxygenated blood to other parts of the body, the pulmonary arteries carry de-oxygenated blood to the lungs. After picking up oxygen, the oxygen rich blood is returned to the heart via the pulmonary veins.

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