BIOLOGY [1 Mark Question Answer]

Outer pleura, inner pleura

Alveoli

Gaseous transport

Anaerobic Respiration

The gas which is expelled during expiration is carbon-di-oxide. It is produced as a result of the oxidation of glucose in the tissues. (Cellular respiration)

The epiglottis closes the windpipe at the time of swallowing.

Blood

The by-products formed are
1. carbon-di-oxide
2. water

Breathing is a simple physical process of drawing in air through the nostrils and expelling it out. Respiration is a chemical process which involves the breakdown of food and releases energy.

Body cells require oxygen for the break down of glucose and release energy for carrying out various life functions.

Pneumonia
Cause: Mainly caused by bacteria inhaled through the air or by contact.
Treatment: Antibiotics—Penicillin.

Tuberculosis
Cause: Caused by bacteria that can spread by air, dust, or sputum.
Treatment: BCG vaccine, antibiotic — Streptomycin.

Diaphragm moves up and down and helps in the exchange of air between the atmosphere and lung

The exchange of gases through moist skin and blood capillaries underneath is called cutaneous respiration.

urine, because it is an excretory product of animals and rests are excretory products of plants.

ATP is the energy currency of cells its full form is Adenosine Triphosphate.

Heart because it helps to pump blood in our body and the help of the rest in excretion.

The process of conversion of glucose molecules in food into energy-rich molecules, carbon dioxide and water with the help of oxygen is known as respiration.

lung, because all others are organs of the excretory system and it is a respiratory organ.

nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli, lungs.