Contribute & Test Your Skills
- Chemical Reactions & Equations
- Acid, Bases & Salts
- Metals & Non Metals
- Carbon & Its Compounds
- Periodic Classification of Elements
- Life Processes
- Respiration
- Control and Coordination
- How Do Organism Reproduce
- Heredity and Evolution
- Light: Reflection and Refraction
- Human Eye and Colorful World
- Electricity
- Magnetic Effect of Electric Current
- Sources of Energy
- Our Environment
- Management of Natural Resources
Popular Questions
- Assertion : Haemoglobin is the respiratory Reason : It transports oxygen in the human body
- Assertion (A) : In the daytime, CO2 generated during respiration Reason (R) : There is no CO2 release during day
- Assertion : Larynx passes air to the pharynx Reason : pharynx produces sound
- An experiment is set up as shown. flasks 1 and 2 contain lime water. Air is pumped through the flasks.
- The following changes take place in an athletes body during a 100m race. which change occurs first?
- Assertion : Respiration is a biochemical Reason : Energy is released during respiration
- The diagram shows part of the human gas exchange system.
- What advantage over an aquatic organism does
- Which process occurring in human body does not involve energy from respiration?
- Assertion : During inhalation, diaphragm flattens Reason : Due to this, air enters the lungs
- The diagram shows the ribs and some of the muscles used in breathing.
- The correct sequence of anaerobic reaction in yeast is
- Each and every respiratory organ is structurally specialised in its function. Justify with examples
- Assertion : The release of energy in Reason : Each glucose molecules produces
- 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
- The process of conversion of glucose
- Why does the air passage not collapse when there is no air in it? or When we breathe out, why does the air passage not collapse
- What is the logic behind the heavy breathing as we climb up a mountain?
- What is the function of guard cells?
- Tabulate adaptations of terrestrial respiration in human being
- Breathing cycle is an essential process for the exchange of gases. Justify this statement
- Aerobic respiration produces more ATP than anaerobic respiration. Justify this statement
- Describe the process of breathing in human beings.
- Name the intermediate and end products of breakdown of glucose in aerobic respiration.
- Write the pathway of oxygen travelling from atmosphere into the human body.
- Which substances are produced by anaerobic respiration in yeast?
- Draw a diagram of respiratory system and label the following.
- 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 ..
- Draw a flawchart to show the breakdown of glucose by various pathways. or Explain the process of breakdown of glucose in a cell
- With a schematic diagram, explain the overall process of respiration in animals
- The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
- What is the role of respiratory pigment in respiration? Give one example.
- What are the different ways in which glucose is
- Which of the following statements are true about respiration?
- When air is blown from mouth into a test-tube containing
- How is oxygen and carbon dioxide transported in human beings?
- (i) A product is formed in the cytoplasm of our muscles (ii) Differentiate between fermentation in yeast and aerobic
- During vigorous physical exercise
