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Test: Respiration in Organisms - Class 7 MCQ


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20 Questions MCQ Test Class 7 Oxford Science: Chapter Notes, Worksheets & Tests - Test: Respiration in Organisms

Test: Respiration in Organisms for Class 7 2024 is part of Class 7 Oxford Science: Chapter Notes, Worksheets & Tests preparation. The Test: Respiration in Organisms questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Respiration in Organisms MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Respiration in Organisms below.
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Test: Respiration in Organisms - Question 1

Which of the following is not a respiratory organ in animals?

Detailed Solution for Test: Respiration in Organisms - Question 1

The heart is a muscular organ responsible for pumping blood, not for respiration.

Test: Respiration in Organisms - Question 2

What is the primary function of the respiratory system in animals?

Detailed Solution for Test: Respiration in Organisms - Question 2

Oxygen is necessary for cellular respiration, which produces energy for the body's cells.

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Test: Respiration in Organisms - Question 3

Which of the following is a respiratory pigment found in red blood cells?

Detailed Solution for Test: Respiration in Organisms - Question 3

Hemoglobin is a protein found in red blood cells that binds to oxygen and allows it to be transported throughout the body.

Test: Respiration in Organisms - Question 4

What is the process by which plants produce oxygen?

Detailed Solution for Test: Respiration in Organisms - Question 4

During photosynthesis, plants use energy from sunlight to convert carbon dioxide and water into glucose and oxygen.

Test: Respiration in Organisms - Question 5

Which of the following is not a respiratory structure in plants?

Detailed Solution for Test: Respiration in Organisms - Question 5

Roots are responsible for absorbing water and nutrients from the soil, not for respiration.

Test: Respiration in Organisms - Question 6

What is the primary difference between aerobic and anaerobic respiration?

Detailed Solution for Test: Respiration in Organisms - Question 6

Aerobic respiration occurs in the presence of oxygen, while anaerobic respiration occurs in the absence of oxygen.

Test: Respiration in Organisms - Question 7

Which of the following is an example of anaerobic respiration in humans?

Detailed Solution for Test: Respiration in Organisms - Question 7

During intense exercise, the body may rely on anaerobic respiration to produce energy in the absence of sufficient oxygen.

Test: Respiration in Organisms - Question 8

What is the function of the diaphragm in the respiratory system?

Detailed Solution for Test: Respiration in Organisms - Question 8

The diaphragm is a muscle located at the bottom of the rib cage that helps to expand and contract the lungs during breathing.

Test: Respiration in Organisms - Question 9

Which of the following is not a component of the respiratory system in humans?

Detailed Solution for Test: Respiration in Organisms - Question 9

The esophagus is part of the digestive system, not the respiratory system.

Test: Respiration in Organisms - Question 10

What is the function of the cilia in the respiratory system?

Detailed Solution for Test: Respiration in Organisms - Question 10

Cilia are tiny hair-like structures that line the respiratory tract and help to move mucus and foreign particles out of the airways.

Test: Respiration in Organisms - Question 11

Which of the following is not a respiratory disorder?

Detailed Solution for Test: Respiration in Organisms - Question 11

Parkinson's disease is a neurological disorder that affects movement and coordination, not the respiratory system.

Test: Respiration in Organisms - Question 12

What is the primary cause of emphysema?

Detailed Solution for Test: Respiration in Organisms - Question 12

Smoking is the primary cause of emphysema, a condition in which the air sacs in the lungs become damaged and lose their elasticity.

Test: Respiration in Organisms - Question 13

Which of the following is a common symptom of asthma?

Detailed Solution for Test: Respiration in Organisms - Question 13

Asthma is a respiratory condition that can cause difficulty breathing, wheezing, and coughing.

Test: Respiration in Organisms - Question 14

How do plants respire?

Detailed Solution for Test: Respiration in Organisms - Question 14

Plants respire through small pores called stomata on the surface of their leaves.

Test: Respiration in Organisms - Question 15

What is the primary waste product of aerobic respiration?

Detailed Solution for Test: Respiration in Organisms - Question 15

During aerobic respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide, water, and energy.

Test: Respiration in Organisms - Question 16

How do fish respire?

Detailed Solution for Test: Respiration in Organisms - Question 16

Fish breathe by drawing water over their gills, which extract oxygen from the water and release carbon dioxide.

Test: Respiration in Organisms - Question 17

What is the role of mitochondria in respiration?

Detailed Solution for Test: Respiration in Organisms - Question 17

Mitochondria are organelles found in cells that are responsible for producing energy through cellular respiration.

Test: Respiration in Organisms - Question 18

Which of the following is not an example of aerobic exercise?

Detailed Solution for Test: Respiration in Organisms - Question 18

Weightlifting is not an example of aerobic exercise, but running, swimming, and cycling are: 

  • Aerobic exercise

    This type of exercise is performed for a sustained period and includes activities like running, swimming, cycling, walking, hiking, dancing, and playing sports. Aerobic exercise can help improve heart and lung function, increase circulation, and reduce blood pressure, cholesterol, and inflammation. 

  • Anaerobic exercise

    This type of exercise involves short bursts of intense activity and does not require oxygen. Examples of anaerobic exercise include weightlifting, sprinting, and climbing stairs. 

Test: Respiration in Organisms - Question 19

What is the difference between tidal volume and vital capacity?

Detailed Solution for Test: Respiration in Organisms - Question 19

Tidal volume and vital capacity are both measures of lung capacity, but they refer to different aspects of breathing.

Test: Respiration in Organisms - Question 20

Which of the following is not a benefit of aerobic exercise?

Detailed Solution for Test: Respiration in Organisms - Question 20

While aerobic exercise can help to improve muscle tone and endurance, it is not typically associated with significant increases in muscle mass.

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