Home
Class 10
BIOLOGY
A student has set up an apparatus to sho...

A student has set up an apparatus to show that "`CO_(2)` is released during respiration". After about I hour he observes no change in the water level in the delivery tube. Write two possible reasons for the failure of the experiment.

Text Solution

Verified by Experts

i] Conical flask is not air tight.
ii] Freshly prepared solution of KOH not used. Or
iii] Germinating seeds may be dry.
Promotional Banner

Topper's Solved these Questions

  • LIFE PROCESSES

    ZEN PUBLICATION|Exercise ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER [SA] TYPE 2 QUESTIONS) |47 Videos

  • LIFE PROCESSES

    ZEN PUBLICATION|Exercise ZEE ADDITIONAL QUESTIONS SECTIONS (LONG ANSWER [LA] TYPE QUESTIONS) |32 Videos

  • LIFE PROCESSES

    ZEN PUBLICATION|Exercise ZEE ADDITIONAL QUESTIONS SECTIONS (VERY SHORT ANSWER [VSA] TYPE QUESTIONS) |42 Videos

  • HOW DO ORGANISMS REPRODUCE?

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE 2 QUESTIONS)|36 Videos

  • OUR ENVIRONMENT

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION ( LONG ANSWER (LA) QUESTIONS )|4 Videos

Similar Questions

Explore conceptually related problems

In the experiment to show that CO_(2) is released during respiration', the small test tube of KOH solution is suspended inside the conical flask to absorb the:

What is observed after about I hour of adding strips of Cu and Al suspended in FeSO_(4) solution in two beakers. Name the reaction and change observed. Also write the chemical equations.

In the experimental set-up to show that "the germinating seeds give out carbon dioxide", answer the following questions: i] Why do we keep the conical flask airtight? ii] Name the substance kept in the small test tube inside the conical flask. Write its role. iii] Why does water rise in the delivery tube?

A water tank has steps inside it. A monkey is sittin on the topmost step (i.e.,the first step). The water level is at the ninth step. After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step?

In each of the following experiments specify appropriate sample space (i) A boy has 1 rupee coin, a 2 rupee coin and a 5 rupee coin in his pocket. He takes out two coins out of his pocket, one after the other. (ii) A person is noting down the number of accidents along a busy highway during a year.

ZEN PUBLICATION-LIFE PROCESSES-ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER [SA] TYPE 1 QUESTIONS)
  1. Write four sequential steps of the procedure of the experiment "Prepar...

    Text Solution

    |

  2. In the experimental set-up to show that "the germinating seeds give ou...

    Text Solution

    |

  3. List in tabular form two differences between pepsin and trypsin.

    Text Solution

    |

  4. List four precautions in proper sequence which we observe while prepar...

    Text Solution

    |

  5. A student has set up an apparatus to show that "CO(2) is released duri...

    Text Solution

    |

  6. Explain the ways in which glucose is broken down in absence or shortag...

    Text Solution

    |

  7. State two functions performed by bile juice.

    Text Solution

    |

  8. Mention the site of complete digestion in our body. Name the end produ...

    Text Solution

    |

  9. What are enzymes? Name any one enzyme of our digestive system and writ...

    Text Solution

    |

  10. Why is it necessary to separate oxygenated and deoxygenated blood in m...

    Text Solution

    |

  11. Leaves of a healthy potted plant were coated with vaseline. Will this ...

    Text Solution

    |

  12. What is the role of saliva in the digestion of food ?

    Text Solution

    |

  13. In the experimental set-up shown, a] Name the material X filled ...

    Text Solution

    |

  14. Two green plants are kept separately in oxygen free containers, one th...

    Text Solution

    |

  15. Why do fishes die when taken out of water?

    Text Solution

    |

  16. Name the correct substrates for the following enzymes: b] Amylase d] L...

    Text Solution

    |

  17. Diagrams given below represent hearts of three different animals. Obse...

    Text Solution

    |

  18. Bile juice contains no digestive enzymes, yet it is important for dige...

    Text Solution

    |

  19. State where stomata are ideally located? Are they cellular structures?

    Text Solution

    |

  20. "The body temperature of frogs and lizards depend on temperature in th...

    Text Solution

    |