The question asks to identify the respiratory disorder specifically characterized by damage to the alveolar walls, often caused by smoking. We need to recall the definitions and primary causes of each listed disorder.
Correct Option: C) Emphysema is a chronic lung disease characterized by the destruction of the walls of the alveoli, leading to a reduction in the surface area for gas exchange. Smoking is the primary cause of this damage.
The question asks about the types of respiration frogs use in addition to lungs. Frogs are amphibians and exhibit various modes of respiration to adapt to their semi-aquatic lifestyle. We need to identify the correct additional respiratory method.
Considering the options, we are looking for a major additional respiratory method besides lungs.
Correct Option: C) Cutaneous
Cutaneous respiration refers to gas exchange through the skin. Frogs have a thin, moist, and vascularized skin that allows them to absorb oxygen directly from the water or air and release carbon dioxide. This is a crucial mode of respiration for frogs, especially when submerged in water or during hibernation.
To determine which gas has higher solubility and diffuses faster across membranes, we need to consider the physical and chemical properties of the gases, specifically their solubility in biological fluids (like blood plasma) and their molecular weight, which influences diffusion rates according to Graham's Law of Diffusion.
Correct Option: B) Carbon dioxide has significantly higher solubility in biological fluids compared to oxygen, nitrogen, and hydrogen. Although its molar mass is higher than oxygen, its much greater solubility allows it to diffuse across membranes at a faster effective rate in physiological conditions.
The question asks to identify the conducting part of the human respiratory system. The respiratory system is broadly divided into two main parts: the conducting part and the respiratory (exchange) part. The conducting part is responsible for transporting air, humidifying it, warming it, and filtering it, while the respiratory part is where actual gas exchange occurs.
Correct Option: B) Nostrils to terminal bronchioles
This option correctly identifies the entire pathway through which air is conducted, warmed, humidified, and filtered before reaching the gas exchange sites. It includes all the necessary structures from the entry point (nostrils) down to the smallest conducting airways (terminal bronchioles).
The question asks to identify which option is NOT a step in the process of respiration. Respiration involves the exchange of gases and the cellular process of energy production. We need to evaluate each option based on its role in this biological process.
Correct Option: C) Circulation of lymph
The question asks to identify the correct formula for Total Lung Capacity (TLC) based on various lung volumes and capacities. Understanding the definitions of these terms is crucial for solving this question.
C) VC + RV
As derived in step 3, Total Lung Capacity (TLC) is the sum of Vital Capacity (VC) and Residual Volume (RV). This represents the maximum amount of air the lungs can hold after a maximal inspiration.