The following image shows the respiratory membrane with its components labelled from A to E. CO2 Which of the following is the structure labelled "B" in this image? a) Basal lamina O b) Endothelium O) Surfactant layer d) Simple squamous alveolar epithelium

Which of the following factors can affect the ability of a respiratory organ to exchange gases with the environment? A) The thickness of the membrane B) The surface area of the membrane C) The concentration gradient of the gases D) The amount of water on the membrane E) All choices are correct F) A, B, and C are correct

Which of the following is a normal characteristic of the respiratory membrane? A) The thickness of the respiratory membrane is not important in the efficiency of gas exchange. B) 0.5 to 1 micrometer thick c) at least 3 micrometer thick

Which of this statement is TRUE for pulmonary respiration?a) Exchange of gases between alveoli of lungs and the bloodb) Exchange of gases between blood and tissue cellsc) Breathing between the atmosphere and the alveoli of the lungsd) Production of ATP

The alveoli and blood capillaries make up the gas exchange surface of the lungs, and as the arrows in the diagram (Figure 3) illustrate, this is where oxygen and carbon dioxide move in a particular direction. a) With reference to simple diffusion, explain why oxygen and carbon dioxide move in the directions illustrated by the arrows. b) The gas exchange surface is specifically adapted to maximise the transport of oxygen and carbon dioxide in these illustrated directions. Explain at least three of these adaptations.

Which of the following maintains the patency openness) of the trachea? a) C- shaped cartilage rings b) negative pressure of the thoracic cavity d) pseudostratified ciliated epithelium e) surfactant production

Identify the epithelium lining a (any) component of the respiratory zone of the respiratory tract 1.   simple squamous epithelium 2.   simple cuboidal (ciliated) epithelium 3.   simple columnar (ciliated) epithelium 4.   pseudostratified columnar (ciliated) epithelium 5.  stratified squamous epithelium Choose the following: (A) 1, 2, and 3 (B) 1 and 2 (C) 4 and 5 (D) 2, 3, and 4 (E) 3, 4, and 5

Which of the following is the respiratory membrane composed of? A) respiratory bronchioles and alveolar ductsb) respiratory b) bronchioles and alveolar sacs c ) alveolar sacs and alveolar ducts d) alveolar and capillary walls and their fused basement membranes

Beginning with the alveolar space, place the following layers of the respiratory membrane into the correct order.  a) capillary basement membrane  b)interstitial tissue  c)capillary epithelial cells  d)alveolar basement membrane  e)alveolar epithelial cells  f)blood  g)fluid and surfactant in the alveolus

Which of the following factors would NOT increase the rate of diffusion of oxygen through the respiratory membrane? A) Increasing the SA/V ratio B) Increasing the partial pressures C) Decreasing the surface area D) Decreasing the thickness of the membrane E) Decreasing the distance the gas has to diffuse