CLASS 6 BIOLOGY RESPIRATORY SYSTEM

What is the primary purpose of respiration in living organisms?

In respiration, what gas is used to break down food?

Which of the following is a waste product of respiration?

What is required for aerobic respiration to occur?

Which type of respiration does NOT require oxygen?

What are the end products of aerobic respiration?

What is a product of anaerobic respiration in yeast?

Which process releases a high amount of energy?

What is the physical process of taking in oxygen and giving out carbon dioxide called?

Where does cellular respiration occur?

Which of the following is a characteristic of breathing?

Which of the following is a key difference between combustion and respiration?

Which organ is the first part of the respiratory tract that air passes through?

What is the function of the epiglottis?

Which structure is supported by C-shaped rings of cartilage?

Where does the exchange of gases take place in the lungs?

What muscle is located beneath the lungs?

During inhalation, what happens to the ribs?

During exhalation, what movement does the diaphragm make?

Which of the following is a respiratory disease?

Why is energy production crucial for living organisms?

During respiration, what happens to the energy stored in food?

Why is it important for the trachea to be supported by C-shaped rings of cartilage?

What is the primary role of the ciliated epithelium lining the trachea?

How does the structure of alveoli support their function in gas exchange?

What causes the air pressure inside the lungs to decrease during inhalation?

How does the composition of expired air differ from that of inspired air?

How does the respiratory system protect the body from pathogens and irritants?

What is the role of the diaphragm in the mechanism of breathing?

Which of the following correctly describes the sequence of air passage in the human respiratory system?

What is the key difference between breathing and cellular respiration?

In what way does the process of combustion differ from respiration?

How does anaerobic respiration differ from aerobic respiration in terms of energy production?

What is the role of the epiglottis during swallowing?

In the context of respiration, what is the significance of the pharynx?

How do respiratory diseases like asthma primarily affect the respiratory system?

Why is it important that the lungs are covered by a double-layered membrane?

What role does haemoglobin play in respiration?

Which of the following is a characteristic feature of the larynx?

How does the body compensate for the reduced oxygen availability at high altitudes?

All living organisms need energy to carry out daily activities.

Respiration involves the production of oxygen and the consumption of carbon dioxide.

Aerobic respiration occurs in the absence of oxygen.

Anaerobic respiration produces a high amount of energy.

Breathing is a chemical process that occurs inside cells.

Cellular respiration involves the exchange of gases with the environment.

Combustion is a slow, stepwise process that occurs in living organisms.

The pharynx is a passage that is only used for air.

The epiglottis prevents food from entering the trachea during swallowing.

The trachea is supported by D-shaped rings of cartilage.

Bronchioles are larger branches that divide from the bronchi.

The right lung has two lobes, while the left lung has three lobes.

Alveoli are air sacs in the lungs where the exchange of gases takes place.

During exhalation, the ribs move outward and the diaphragm moves downward.

The percentage of oxygen is higher in expired air than in inspired air.

During respiration, energy is absorbed as food materials are broken down.

Aerobic respiration completely breaks down sugar into ethyl alcohol, carbon dioxide, and energy.

Breathing, also known as external respiration, is a chemical process that occurs within cells.

Combustion is a slow, stepwise process that occurs in living organisms at room temperature.

The pharynx is a passage exclusively for air, directing it from the nose to the trachea.

The larynx, containing the epiglottis, is primarily responsible for filtering dust particles from inhaled air.

The amount of carbon dioxide in inspired air is significantly greater than in expired air.

During inhalation, the ribs move downwards and inwards, decreasing the size of the chest cavity.

Alveoli lack blood capillaries, meaning gas exchange occurs in the bronchioles.

The tidal volume in an adult human is approximately 5000 ml, representing the maximum air the lungs can hold.

In anaerobic respiration, more energy is released compared to aerobic respiration.

The diaphragm contracts and moves upward during inhalation, increasing the volume of the thoracic cavity.

Bronchitis is caused by a bacterial infection and is effectively prevented by the BCG vaccine.

The right lung has two lobes, while the left lung has three.

During combustion, energy is produced primarily in the form of kinetic energy.

During oxidation, ______ helps in the breakdown of food, liberating energy and carbon dioxide.

When oxygen is required for respiration, it is known as ______ respiration.

Respiratory process occurring in the absence of oxygen is called ______ respiration.

Inhaled air has more ______ and exhaled air has more carbon dioxide.

[Blank] respiration is a chemical process in which food molecules are broken down into simpler molecules within cells and energy is produced.

During respiration, ______ is produced

During respiration, carbon dioxide is ______ out.

The opening of trachea is called ______ which is guarded by a thin flap called epiglottis.

The trachea is supported by C-shaped rings of ______.

Each bronchus enters the lung and redivides into smaller branches called ______.

The lungs rest on a dome-shaped muscle called ______.

During inhalation, the ______ moves downward.

During exhalation, the ribs move ______ and inwards.

[Blank] is a type of allergy to dust, pollens and other allergens.

The red blood cells contain a pigment called ______.

During the process of respiration, food is ______, energy is produced, and oxygen is used up while carbon dioxide is released.

In the absence of oxygen, some organisms like yeast undergo ______ respiration, producing ethyl alcohol, carbon dioxide, and a smaller amount of energy.

While breathing is a physical process involving the exchange of gases, ______ respiration is a chemical process where food molecules are broken down within cells to produce energy.

Unlike combustion, which occurs rapidly at high temperatures and produces heat and light, respiration is a slow, stepwise process that occurs at normal room temperature and is catalyzed by ______.

The ______ is also known as the voice box because it contains vocal cords that vibrate to produce sound when air passes over them.

The trachea is prevented from collapsing due to the presence of ______-shaped rings of cartilage that provide structural support.

Within the lungs, the ______ divide and redivide into finer tubes called bronchioles, which eventually lead to air sacs called alveoli.

Gas exchange in the lungs occurs in the ______, which are thin-walled air sacs surrounded by blood capillaries.

During inhalation, the diaphragm moves ______ and the ribs move outward and upward, increasing the size of the chest cavity and drawing air into the lungs.

Compared to inspired air, expired air contains a higher percentage of ______ and a lower percentage of oxygen.

[Blank], a respiratory disease, is a type of allergy that affects the airways, causing wheezing, coughing, and chest tightness.

Pneumonia is characterized by an infection of the lungs, leading to symptoms such as fever, chills, and lungs filled with ______.

Tuberculosis (TB) is a bacterial infection that spreads through the inhalation of tiny ______ released by an infected person during coughing or sneezing.

Respiration is a ______ process in which organic substances are broken down into simpler products, releasing energy.

The red blood cells contain ______, a pigment that carries oxygen as oxyhaemoglobin throughout the body.

What is the main waste product produced during respiration?

Name one type of respiration that requires oxygen.

Is breathing considered a physical or chemical process?

Is cellular respiration a physical or chemical process?

Name one part of the human respiratory system.

What is the voice box also known as?

What does the trachea divide into?

What are the small air sacs in the lungs called?

Name one thing that happens during inhalation.

Give an example of a respiratory disease.

What flap prevents food from entering the windpipe?

What is the dome-shaped muscle below the lungs called?

What is the name of the infection of the main airways of the lungs?

How does the presence of C-shaped cartilage rings in the trachea contribute to the respiratory process?

Explain how the structure of alveoli facilitates efficient gas exchange in the lungs.

Describe the role of the diaphragm during inhalation and exhalation.

How does the composition of inhaled air differ from that of exhaled air, particularly in terms of oxygen and carbon dioxide content?

Explain why diseases affecting the respiratory system can have widespread effects on the body.

Contrast breathing and cellular respiration, focusing on where each process occurs and their respective functions.

Compare and contrast aerobic and anaerobic respiration in terms of oxygen requirement, end products, and energy yield.

Describe the role of mucus and cilia in the nasal passage and trachea in protecting the respiratory system?

Explain the function of the epiglottis and why it is important for preventing choking.

How do the differences in the structure of the left and right lungs relate to the position of the heart?

Explain why carbon monoxide (CO) is dangerous to human health with respect to respiration.

Describe how the human body responds to high altitude conditions, focusing on changes in the respiratory system.

What is the role of the pleura and pleural fluid in the respiratory system?

Explain how asthma affects the respiratory system, and describe its major symptoms.

Contrast the speed and temperature conditions of combustion and respiration. Why are they different?

Cellular respiration is described as a 'chemical process.' Elaborate on why this description is accurate, detailing the specific molecular events that justify this classification.

Differentiate between the roles of bronchi and bronchioles in the respiratory system. How do their structural differences contribute to their specific functions?

Explain how the structure of alveoli is specifically adapted to facilitate efficient gas exchange. Include details about their surface area, wall thickness, and relationship to capillaries.

How would you describe the critical distinction between 'breathing' and 'cellular respiration'?

Analyze the consequences if the epiglottis fails to function correctly. What specific physiological events would be affected, and what potential health risks arise from this malfunction?

Explain the role of the diaphragm in breathing. How do changes in its shape and position contribute to inhalation and exhalation, and how does this affect the pressure within the thoracic cavity?

Compare and contrast aerobic and anaerobic respiration in terms of their efficiency and the types of organisms that typically utilize each process. What are the key differences in their metabolic pathways and end products?

Describe the function of C-shaped cartilage rings in the trachea. How does this unique structural adaptation prevent the trachea from collapsing, and what are the potential consequences if these rings were absent or damaged?

Explain the mechanisms by which the nose filters, warms, and moistens inhaled air. What specific structures within the nasal passages contribute to each of these functions, and why are these processes essential for respiratory health?

In the context of respiratory diseases, differentiate between asthma, bronchitis and pneumonia in terms of their primary causes, symptoms, and long-term effects on lung function. How do these conditions impact the process of respiration at a cellular level?