Tag: human body

Quizzes (23) Questions (21)

Questions Related to human body

Multiple choice zoology human body body defense system drug-target interaction pharmaceutical products and drug action

The skin has an outer layer made up of .......... which is almost impermeable to germs.

  1. Keratin

  2. Lipid

  3. Fat

  4. Carbohydrate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The skin is the largest organ of the body, with a surface area of 18 square feet. Its two main layers are the epidermis (outer layer) and dermis (inner layer). The epidermis has several strata (layers) that contain four cell types. Keratinocytes produce keratin, a protein that gives skin its strength and flexibility and waterproofs the skin surface.

So, the correct answer is option A.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Pneumoconiosis is a type of

  1. Emphysema

  2. Occupational renal disease

  3. Occupational respiratory disease

  4. Coronary artery disease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Pneumoconiosis is a disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and fibrosis. 
  • Pneumoconiosis is usually considered an occupational respiratory disease, and includes asbestosis, silicosis and coal workers' pneumoconiosis (CWP), also known as "Black Lung Disease."

So, the correct option is 'Occupational respiratory disease'.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Asbestosis increases the risk of developing all of the following except

  1. Carcinoma of the lungs

  2. Mesotheliomas

  3. Bronchiectasis

  4. Tuberculosis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Asbestosis is a known risk factor for lung carcinoma and mesothelioma. Tuberculosis is an infectious disease caused by bacteria, not a direct consequence of asbestos fiber inhalation.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

If the lung were punctured, which of the following would happen?

  1. The lung would collapse on the side of the puncture.

  2. Both the lung and the chest wall would collapse on the side of the puncture.

  3. Inspiratory signals from medulla become irregular

  4. Interpleural pressure decrease further
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If the lung is punctured, the intrapleural space is exposed to atmospheric pressure. This eliminates the negative pressure that keeps the lung inflated, causing the lung to collapse (pneumothorax).

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Which one of the following statements is incorrect?

  1. The residual air in lungs slightly decreases the efficiency of respiration in mammals

  2. The presence of non-respiratory air sacs, increases the efficiency of respiration in birds

  3. In insects, circulating body fluids serve to distribute oxygen to tissues

  4. The principle of counter current flow facilities efficient respiration in gills of fishes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Residual air in the lungs is essential to keep the alveoli from collapsing between breaths; it does not decrease the efficiency of respiration but rather maintains structural integrity. The other statements correctly describe respiratory adaptations in birds, insects, and fish.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

State if the following statement is True or False. Correct the False statement.
Our lungs eliminate metabolic wastes like urea from the body.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The statement is false because the primary organ for eliminating nitrogenous wastes like urea is the kidneys, via urine formation, not the lungs. The lungs primarily eliminate carbon dioxide and water vapor.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

State if the following statement is True or False. Correct the False statement.
Bile pigments are the excretory products excreted by the lungs.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The statement is false because bile pigments are excreted by the liver into the digestive tract through bile and eliminated via feces, not excreted by the lungs. Lungs expel respiratory gases like carbon dioxide.