Why do fish suffocate when taken out of the water and placed in air, whereas mammals suffocate if the air in their alveoli is replaced with water?

Q: Which of these statements about the partial pressure of carbon dioxide is true?a. It is higher in…

A: The measure of carbon dioxide in the artery and veins is called partial pressure of carbon dioxide…

Q: The two openings of the pharynx, one leading to trachea and the other leading to oesophagus, lie…

A: The pharynx is the common structure involved in both the respiratory system and the digestive…

Q: Callisto has managed to escape Xena, and therefore Xena decides to rest for the night in a small but…

A: Intrapleural pressure is negative relative to atmospheric and intrapulmonary all through ordinary…

Q: In the alveolates, what structure may control osmotic balance?

A: Osmotic balance ensures the optimal electrolyte concentration and maintains the non-electrolyte in…

Q: You watch a live individual respiring (that is, obtaining oxygen from its environment). What…

A: When we hear the word respire, we think of breathing. When we breathe, with each inhale we are…

Q: Why must the lung be able to return to its normal non-deflated shape? and name facctors that enable…

A: The lungs are spongy organs, full of air, and are found on both sides of the thorax. When we inhale,…

Q: The toxins in cigarette smoke damage the cells of the tissue capillaries and also cause arterioles…

A: The oxygen dissolved in the red blood cells reached the tissues of the body. Oxygen diffuses into…

Q: Oxyhemoglobin forms by a chemical reaction betweenwhich of the following?a. hemoglobin and carbon…

A: Hemoglobin is a globular protein that contains four haem molecules. Hemoglobin is found on the…

Q: Respiratory organs of invertebrates and vertebrates are similar in that a. they use negative…

A: Breathing is described as the movement of air between the atmosphere and the lung. It involves two…

Q: Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory…

A: Each alveolus is composed of a thin layer of squamous epithelial cells that are highly permeable and…

Q: Explain why chemoreceptors are important for the regulation ofventilation.

A: In physiology, a chemoreceptor detects changes in normal environment, including increase of CO2 in…

Q: Explain why the first breath of a healthy neonate is more difficult than subsequent breaths and why…

A: Respiration is the oxygen movement from the outer environment to cells and the carbon dioxide…

Q: In pneumonia, fluid accumulates in the alveoli of the lungs. How would this accumulation affect…

A: Vital capacity (VC) is the greatest measure of air an individual can remove from the lungs after a…

Q: Callisto has managed to escape Xena, and therefore Xena decides to rest for the night in a small…

A: Introduction  Breathing is the process of moving air into and out of the lungs in order to…

Q: In the model lung demonstration, air flows into the balloons through a rigid tube that divides once.…

A: Introduction  Lungs are the key organ which plays major role in respiration and gaseous exchange.…

Q: Explain how the alveoli increase the efficiency of the respiratory system.

A: The human respiratory tract is made up of the nostril, larynx, nasal chamber, pharynx, trachea,…

Q: Describe how Boyle's law results in inspiration and expiration. Your response must include the…

A: BOYLE'S LAW :- According to this law the volume and pressure are constant in the case of an ideal…

Q: The pressure inside the alveoli is less than the atmosphenic pressure

A: The air around you has weight, and it presses against everything it touches. That pressure is called…

Q: Describe the function of the cilia in the respiratory tubes.

A: The respiratory system involves various organs and allied parts that enable breathing. It involves…

Q: Your friend thinks that while he is inhaling, the pressure in his lungs increases because they are…

A: Inhalation It is the process of breathing in. Though this process the air enters the lungs and…

Q: What properties of air make it possible for humans and other mammals to breathe by tidal…

A: Tidal volume is the amount of air that travels in and out of the lungs with the respiratory cycle.…

Q: A person breathing room air has an alveolar PO2 of 105 mmHg and an arterial PO2 of 80 mmHg. Could…

A: Hypoventilation refers to a state of decreased or inadequate ventilation. Hypoventilation is…

Q: Jumping into cold water may initiate the “diving reflex,” during which blood is shunted toward the…

A: The diving reflex is activated by chilling and wetting the nostrils and face while holding your…

Q: Air rushes into the lungs of humans during inhalation because

A: The main function of the lungs is the process of gas exchange called respiration or breathing.

Q: Suppose a patient is receiving oxygen by mask. Are the arterioles leading into the O2-enriched…

A: Respiration is defined as a metabolic process, where the oxygen molecule is moved from the external…

Q: the lungs of mammals, airways branch into a series of narrowing tubes that end in Alveoli. How does…

A: The air moves into the lungs through the nostrils, the throat, pharynx, larynx, trachea ,the…

Q: How does the circulatory system maintain a constant flow of gas exchange (diffusion) across the…

A: Blood arteries that convey blood away from and towards the heart make up the circulatory system.…

Q: If blood passing by a lung has less O2 than inside the lung itself, then the O2 will due to

A: Lungs are important organs in the respiration process and supplying oxygenated blood to the vital…

Q: Trace the route of inspired air in humans from the nostrils to the smallest chamber of the lungs.…

A: The process of drawing air into the lungs is referred to as inspiration or inhalation. It is an…

Q: Animals that live on land such as amphibians, reptiles, birds and mammals have lungs as major…

A: Lung development varies from animal to animal, depending on their evolution. The lungs are the…

Q: The great alveolar cells secrete aphospholipid–protein mixture called

A: Step 1 Each lung has about 300 million alveoli. Alveoli constitute the functional units of the…

Q: trace the flow of air beginning with the air in the atmosphere and ending with the alveoli

A: Breathing occurs in two steps- 1. Inspiration- In this method we take air inside the body. 2.…

Q: A defect in type 2 alveolar cells would mostly affect Expiration Gas exchange Inspiration

A: During the act of inspiration and expiration, the alveoli can be referred to as the region which…

Q: At high altitudes, the partial pressure of oxygen is lower. How might you expect this lower oxygen…

A: The role of oxygen in the human body is much more important in sustaining life. The fall in oxygen…

Q: A trout exposed to acid mine drainage experiences an increase in mucus production along the gills.…

A: Adolf Fick developed Fick's laws of diffusion in 1855 to characterise diffusion. They can be used to…

Q: ___________ transport oxygen from the lungs to thebody tissues and carry carbon dioxide back to the…

A: Oxygen and carbon dioxide are essential gases that are involved in the general metabolism. Oxygen is…

Q: Callisto has managed to escape Xena, and therefore Xena decides to rest for the night in a small but…

A: In the deep cave at high altitude place near  More than 3,500m, leh you must have experienced what…

Q: What feature of alveoli that helps in efficient gas exchange?

A: Alveoli are tiny cup-like hollow structures present at the end of the bronchial tubes throughout the…

Q: How is the respiratory system of a bird similar to the respiratory system of a fish? Why do birds…

A: The process through which an organism receives energy is known as cellular respiration. Cellular…

Q: Compare and contrast the respiratory system of fish, amphibians, birds and mammals.

A: The group of organs and parts of the body involved in the gaseous exchange is known as the…

Q: With necessary figures, briefly explain the components of Human respiratory system.

A:

Q: The alveoli in the lungs where gas exchange occurs are composed of a simple squamous epithelium.…

A: Respiration is the metabolic process of taking in oxygen and giving out carbon dioxide. This process…

Q: Create a flow diagram for this respiratory system that has these elements in correct order pharynx,…

A: Introduction The process of respiration (inhalation of oxygen and exhalation of carbon dioxide) is…

Q: what are the advantages of having millions of alveoli rather than having simple balloon like lungs

A: One of the most important organs of the body is the Lungs that helps an individual to respire and…

Q: Does carbon dioxide move from the blood to the tissue cells or from the tissue cells to the blood…

A: Respiratory system consists of Nose, Trachea, A pair of lungs  In the lungs exchange of gases…

Q: Why do some, if not most aquatic organisms, have supplemental respiratory organs as compared to…

A: Breathing is an automatic process. The respiratory centre in the brain controls how often a breath…