Assertion : Respiration is a biochemical
Reason : Energy is released during respiration
Assertion : Lungs always contain
Reason : It provides sufficient time
The diagram shows part of the human gas exchange system.
What is the function of guard cells?
Assertion (A) : In the daytime, CO2 generated during respiration
Reason (R) : There is no CO2 release during day
The process of conversion of glucose
The diagram shows the ribs and some of the muscles used in breathing.
An experiment is set up as shown. flasks 1 and 2 contain lime water. Air is pumped through the flasks.
Each and every respiratory organ is structurally specialised in its function. Justify with examples
Describe the process of breathing in human beings.
Assertion : Larynx passes air to the pharynx
Reason : pharynx produces sound
Diffusion pressure cannot deliver oxygen all over the body in bigger animals. Comment on this statement.
Assertion : Exchange of oxygen and carbon
Reason : oxygen diffuses from alveoli to blood vessels
Aerobic respiration produces more ATP than anaerobic respiration. Justify this statement
Assertion : The release of energy in
Reason : Each glucose molecules produces
Assertion : During inhalation, diaphragm flattens
Reason : Due to this, air enters the lungs
Write the pathway of oxygen travelling from atmosphere into the human body.
Draw a diagram of respiratory system and label the following.
Why does the air passage not collapse when there is no air in it?
When we breathe out, why does the air passage not collapse
Assertion : In woody plants
Reason : Lenticels are specialised cells
Breathing cycle is an essential process for the exchange of gases. Justify this statement
Assertion : Haemoglobin is the respiratory
Reason : It transports oxygen in the human body
Draw a flawchart to show the breakdown of glucose by various pathways.
Explain the process of breakdown of glucose in a cell
Name the intermediate and end products of breakdown of glucose in aerobic respiration.
What are the different ways in which glucose is oxidised
Explain the three pathways of breakdown of glucose in living organisms
While breathing out, point out the changes you think occur in diaphragm and intercoastal muscles.
If a person holds his breath after expiration for about 25 sec, would there be occurrence of any exchange of respiratory gases in ..
When air is blown from mouth into a test-tube containing
(i) A product is formed in the cytoplasm of our muscles
(ii) Differentiate between fermentation in yeast and aerobic
What is the role of respiratory pigment in respiration? Give one example.
The correct sequence of anaerobic reaction in yeast is
With a schematic diagram, explain the overall process of respiration in animals
During vigorous physical exercise
What is the logic behind the heavy breathing as we climb up a mountain?
Which cell organelle is involved in
What advantage over an aquatic organism does
Tabulate adaptations of terrestrial respiration in human being
Which of the following structures is involved in
What are the different ways in which glucose is
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
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