The given graph shows changes in the concentration of lactic acid in the muscles of an athlete both during and after the race. At what time did the athletes finish the race?
Important Questions on Respiration in Organisms
When a person breathes in, what happens to the diaphragm and to the rib cage?
| Diaphragm | Rib cage | |
| (A) | Becomes flatten | Moves downwards and inwards |
| (B) | Becomes flatten | Moves outwards and upwards |
| (C) | Becomes more curved | Moves downwards and inwards |
| (D) | Becomes more curved | Moves outwards and upwards |
Farheen soaked some bean seeds in water overnight. Next morning, she drained the water and kept the seeds moist till they started germinating. She boiled half of the seeds and then kept the germinating seeds in one thermos flask (X) and the boiled seeds in another thermos flask (Y). She covered the mouths of both flasks with moist cotton wool. Then she inserted thermometers in both flasks and kept the flasks as shown in the figure.
What would be her observation?
Statement 1: Yeast is a single-celled organism which is used in baking and brewing industry.
Statement 2: Yeast carries out anaerobic respiration, i.e., fermentation and releases, ethyl alcohol and carbon dioxide.
Sometimes, during strenuous activity such as long-distance running, your body cannot get enough (i) to produce the required energy. To get the additional energy, (ii) respiration occurs within your muscle cells. In this process, there is partial breakdown of (iii) to produce (iv), the accumulation of which in the body causes (v). Complete the above paragraph by selecting the correct sequence of words.
The given figure illustrates the changes in lung volume during the process of breathing.
The change from to Rindicates the
Study the given flow chart about respiratory structures in different organisms. Identify the organisms P, Q, R, S, and select the correct option.
