Advertisements
Advertisements
प्रश्न
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
Advertisements
उत्तर
1. Residual air: Some air is always left in the lungs even after forcibly breathing out. This is the leftover or residual air. This volume is 1500 mL.
2. Dead air space: Some tidal air is left in the respiratory passages such as the trachea and bronchi, where no diffusion of gases can occur. This volume is called dead air space. It is 150 mL.
APPEARS IN
संबंधित प्रश्न
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
What are the different ways in which glucose is oxidized to provide energy in various organisms?
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.
What is the name of the extensions of the epidermal cells of a root which help in respiration?
Out of photosynthesis and respiration in plants, which process occurs:
(a) all the time?
(b) only at daytime?
State whether the following statement is true or false:
Energy can be produced in cells without oxygen.
Define breathing. State the differences between breathing and respiration.
What are the major organs of respiratory system in man (or humans)?
A, B and C are three living organisms. The organism A is a unicellullar fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of malarial parasite. It breathes and respires through a kind of tiny holes R and air-tubes S in its body.
(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii) R, and (iv) S.
(c) Which organism/organisms undergo aerobic respiration?
(d) Which organism/organisms undergo anaerobic respiration?
Out of xylem and phloem, which one carries materials only upwards?
Tick the most appropriate answer.
The products of respiration are :
State one function of the following:
Mitochondria
Answer the following question.
How is O2 and CO2 transported in human beings?
What is the ppCO2 in alveolar air?
Name the substances whose build-up in the muscles during vigorous physical exercise may cause cramps?
The Figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are air tight and have been kept in light for 6 hours. Then, Iodine Test is performed with one leaf from each of the two plants X and Y.
The function of KOH is to absorb ______.
During respiration exchange of gases take place in
On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
