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प्रश्न
State one function of the following:
Mitochondria
उत्तर
In mitochondria, pyruvic acid is further broken down step by step in a cyclic manner in the presence of oxygen.
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संबंधित प्रश्न
How are the alveoli designed to maximise the exchange of gases?
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
What would happen if all the green plants disappear from the earth?
Describe the process of respiration in Amoeba. State whether it is anaerobic respiration or aerobic respiration.
What are the major organs of respiratory system in man (or humans)?
Which contains more carbon dixoide : exhaled air or inhaled air? Why?
Which of the following statements are correct?
(i) pyruvate can be converted into ethanol and carbon dioxide by yeast
(ii) fermentation takes place in the case of aerobic bacteria
(iii) fermentation takes place in mitochondria
(iv) fermentation is a form of anaerobic respiration
Which of the following statements are true about respiration?
(i) during inhalation, ribs move inward and diaphragm is raised.
(ii) the gaseous exchange takes place in the alveoli.
(iii) haemoglobin has greater affinity for carbon dioxide than oxygen.
(iv) alveoli increase surface area of the exchange of gases
One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is:
During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is:
With which human organ system (or human systems) is alveoli associated?
An animal in which the oxygenation of blood does not take place in the lungs is:
Out of xylem and phloem, which one carries materials only upwards?
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Alveoli and _____________.
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Mitochondria and _____________.
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Diaphragm and _____________.
Match the items in Column A with those in Column B.
|
Column A |
Column B |
|
Cartilaginous |
Epiglottis |
|
Large surface area |
Diaphragm |
|
Breathing movements |
Bronchi |
|
Voice |
Alveoli |
|
Complemental air |
Larynx |
|
Swallowing |
Extra inhalation |
With regard to the respiratory system and the process of respiration in man, answer the following question:
What is meant by :
- Residual air and
- Dead air space
Answer the following question.
How is O2 and CO2 transported in human beings?
Why is respiration essential for life?
Name the organs that bring about respiration.
Respiration refers to ____________.
Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?
What percent of oxygen is transported in a dissolved state by the plasma?
What is the ppCO2 in alveolar air?
During the process of exhalation, the ribs move
Observe Figure 10.2 carefully and answer the following questions.
- Which process is being tested in the activity?
- What is the result of the activity? Give reasons.
