Trace the route of inspired air in humans from the nostrils to the smallest chamber of the lungs. What is the “dead air space” of a mammalian lung and how does it affect the partial pressure of oxy-gen reaching the alveoli? How is this problem partially solved by bird respiratory systems?

Q: Describe the overall goal(s) of the respiratory and circulatory systems. Why are they considered to…

A: The goals of the respiratory system are:- To carry out inhalation and exhalation of gases easily…

Q: Discus in detail the reactions that take place in the respiratory complexes

A: Respiratory chain complexes are multi-subunit structures localized to the inner mitochondrial…

Q: Draw and label the following graphs: a) Graph the effect of ventilation on arterial PCO2. b) Graph…

A: The transfer of gas between the alveoli and the surrounding environment is known as alveolar…

Q: Illustrate the flow of oxygen in our breathing system through a diagram. (You may use arrows to…

A: Breathing is a process mainly consist of two activities, inhalation and exhalation. It is a process…

Q: Compare the avian and mammalian lungs in terms of structure and respiratory function

A: Respiration is the basic mechanism which occurs in the body of the living organisms. Its basic…

Q: What is the role of carbon dioxide in the control of rate and depth of mammalian breathing?

A: Breathing is all about differentiating air pressure between the environment and the lungs. It is the…

Q: Why does altitude have almost no effect on an animal’s ability to rid itself of CO2 through gas…

A: Animals can exchange gases (oxygen and carbon dioxide) with the environment through the process of…

Q: Why do fish suffocate when taken out of the water and placed in air, whereas mammals suffocate if…

A: Fish and other aquatic organisms use gills for gaseous exchange. But mammals and birds uses lungs as…

Q: Which of the following is a true statement? A. The concentration of oxygen in water is greater than…

A: Answer D- Mammalian lungs require the diaphragm because the lungs are relatively stiff and filled…

Q: How are larger amounts of air moved between the lungs and atmosphere during forced inspiration and…

A: The process of gaseous exchange that is characterized by inspiration and expiration is more…

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: Draw your own original diagram to show how the alveoli and the capillaries work together to exchange…

A: The pulmonary circuit is responsible for pulmonary circulation, to oxygenate the deoxygenated blood…

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: Describe the anatomical structure and function of the alveolar-capillary membrane. What are the 3…

A: The tongue is used to articulate alveolar consonants against or close to the superior alveolar…

Q: explain the four stages of gas exchange in animals withcirculatory systems and lungs?

A: In large and active animals, respiratory systems involve respiratory organs that work together as a…

Q: Describe the pathway by which a change in arterial H1 concentration independent of altered carbon…

A: Respiratory framework works alongside the cardiovascular framework for the transportation of the…

Q: In your own words, explain how a person’s pulmonary oxygen utilization coefficient can increase as…

A: In physiology, breath is the movement of oxygen from the external climate to the cells inside…

Q: If the residual air in mammalian lungs was reduced while at the same time the tidal volume were…

A: Tidal volume is the sum of air that flows into and out of the lungs during each respiratory cycle.

Q: What is the sequence of inhaled airflow through the respiratory structures in a mammal?

A: Respiration is one of the essential survival mechanisms takes part in our body. The respiration…

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: Diagram and explain the mechanism of inspiration and the mechanism of expiration

A: Respiration is the process of removal of carbon dioxide from the lungs and taking oxygen from the…

Q: In which part of the mammalian respiratory system does gas exchange occur? A. bronchioles B.…

A: Answer : Option (C) alveoli is correct. Other options were wrong because here in these no exchange…

Q: Compare the values below. Which is greater, or are the two values equal? A. Pressure in the…

A: Air sacs can be defined as the internal compartments which store the air and utilise this air for…

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: 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: What will be the pO2 and pCO2 in the atmospheric air compared to those in the alveolar air ?(i) pO2…

A: The respiratory system is a biological system consisting of specific organs and structures used for…

Q: Compare and explain the gas exchange efficiencies of fish, birds, and mammals.

A: Fishes The gas exchange organs of fishes are called gills . A flap , the operculum covers and…

Q: Name one of the specialized respiratory structures for the class aves

A: The respiratory structures consist of all the organs involved in breathing. These include the nose,…

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: Compare the two types of gas exchange systems in invertebrates.        Based on your observation of…

A: Various respiratory mechanism occurs in different forms of the body. Some utilize gills, some lungs…

Q: Trace the partial pressure of oxygen from inspired air to expired air and explain each change in Po2…

A: The partial pressure of oxygen (pO2) is the amount of oxygen pressure in arterial blood vessels. It…

Q: How is respiration rate in humans modulated? How are diving animals able to remain submerged for…

A: Introduction :- We can breathe because of our lungs and respiratory system. They inhale oxygen and…

Q: Hydrogen bonding between water molecules is essential for lung expansion to occur, but also…

A: Pls refer below for the solution :

Q: Outline the differences among the three most sophisticated lungsfound in modern animals: the…

A: The insect tracheal system is not dependent on the circulatory system in order to get the oxygen…

Q: Why is the rate if breathing much faster in aquatic organisms than those of terrestrial organisms?

A: Breathing is a physical process through which we intake fresh air and remove foul air. The gas which…

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: The human respiratory systems of humans and grasshoppers have different adaptations to maximise the…

A: Answer: Introduction: The respiratory system is the system of organs like lungs, blood vessels and…

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: WHich of the following finding at the apex best explains why ventilation-perfusion ratios are higher…

A: Ventilation perfusion ratio shows the ventilation that is-  the air that reaches the alveoli and…

Q: Explain why the gas values from the alveolar air to the blood change during pulmonary gas exchange.…

A: Hi, Thanks For Your Question.  Ans : FROM ATMOSPHERIC AIR UPTO BLOOD   USING LAW OF PARTIAL PRESSURE…

Q: List corresponding functions of these major respiratory organs in frogs 1. Nares 2. Buccal cavity…

A: Introduction  Frogs are amphibians, meaning they can live on land as well as in water. When they are…

Q: Identify 3 physical conditions that can optimize rate of diffusion of a gas across a membrane, and…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Which statement correctly explains why respiration rate elevates with exercise as compared to at…

A: Respiration is the process of inhaling oxygen and exhaling carbon dioxide. The lungs and the…

Q: PART C: Directions: Briefly describe what happens to the chest cavity, diaphragm, and air pressure…

A: Respiration is the process, where inhalation and expiration occur. This helps in the entry of oxygen…

Q: bell jar model can be used to demonstrate the basic mechanism of breathing humans. The diagram below…

A: The human respiratory system is defined as the system that is responsible for taking up oxygen and…