Olympiad Class-7 Science Set-5
1 / 25
What is the end product of anaerobic respiration in muscles?
2 / 25
Which gas is taken in during inhalation?
3 / 25
Which of the following is a by-product of aerobic respiration?
4 / 25
Which part of the respiratory system is also known as the windpipe?
5 / 25
Which of the following is the primary organ of the respiratory system in humans?
6 / 25
Respiration in plants occurs through:
7 / 25
In anaerobic respiration in muscles, glucose is converted to:
8 / 25
What happens when carbon dioxide is passed through lime water?
9 / 25
The respiratory system starts from the:
10 / 25
In humans, exchange of gases takes place in:
11 / 25
The tiny air sacs in the lungs where the exchange of gases takes place are called:
12 / 25
Which of the following organisms can perform both aerobic and anaerobic respiration?
13 / 25
In the absence of oxygen, yeast cells convert glucose into:
14 / 25
The process of breaking down glucose to release energy is called:
15 / 25
The muscle that plays a crucial role in breathing is the:
16 / 25
The process of inhaling and exhaling is called:
17 / 25
The respiratory pigment in humans that transports oxygen is:
18 / 25
Anaerobic respiration occurs in the absence of:
19 / 25
In which part of the plant does respiration mainly occur?
20 / 25
Which gas is produced during respiration?
21 / 25
The flap that covers the trachea during swallowing is called:
22 / 25
The exchange of gases in the alveoli occurs by:
23 / 25
During inhalation, the diaphragm:
24 / 25
What type of change is cutting a log of wood into pieces?
25 / 25
What is the main function of the respiratory system?
Your score is