Home
Class 10
BIOLOGY
Given alongside is a sketch of a leaf pa...

Given alongside is a sketch of a leaf partially covered with black paper and which is to be used in the experiment to show that light is compulsory for the process of photosynthesis. At the end of the experiment, which one of the leaf parts labelled I, II and III will become blue black when dipped in iodine solution?

A

I only

B

II only

C

I and III

D

II and III

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MANAGEMENT OF NATURAL RESOURCES

    LAKHMIR SINGH & MANJIT KAUR|Exercise VALUE BASED QUESTIONS|25 Videos
  • OUR ENVIRONMENT

    LAKHMIR SINGH & MANJIT KAUR|Exercise Long Answer Type Questions|1 Videos

Similar Questions

Explore conceptually related problems

A star-shaped figure was cut in the black paper strip used for covering the leaf of a destarched plant used for demonstrating that light is necessary for photosynthesis. As the end of the experiment when the leaf was tested for starch with iodine, the star-shaped figure on the leaf was found to be:

In the experiment to show that light is necessary for photosynthesis, the pluked leaf is boiled in ethanol and then washed with water. After this, it is tested for the presence of a carbohydrate by a chemical which is:

In a experiment on two leaves - a variegated leaf or a leaf that was partially covered with black paper, and one that was exposed to light. Testing these leaves for what so that it becomes clear that photosynthesis occurred only in the green parts of the leaves in the presence of light.

(i) An adiabatic cylinder contains an ideal gas. It is fitted with a freely movable insulating piston. In one experiment the piston is pulled out very fast to double the volume of the gas. In another experiment starting from same initial state, the piston is pulled out very slowly to double the volume of the gas. At the end of which experiment the final pressure of the gas will be higher? (ii) An ideal gas is contained in a cylinder fitted with a movable piston. In an experiment ‘A’ the gas is allowed to perform a work W (gt 0) on the surrounding during an isobaric process and thereafter the pressure of the gas is reduced isochorically to half the initial value. At the end of the experiment the temperature of the gas is T_(A) . In a different experiment ‘B’ the pressure of the gas is reduced to half in an isochoric process and then the gas performs a work W on the surrounding during an isobaric process. At the end of the experiment the gas temperature is T_(B) . Which is higher, T_(A) or T_(B) ?

The following three kinds of leaves were exposed to light : I. Variegated leaf II. Green leaves partially covered with black paper III. Green leaf Presence of starch was seen in

The leaves of a plant combine a gas A taken from air and a liquid B taken from the soil in the presence of sunlight to make a simple food C by the process called D. some of the simple food C gets converted into a complex food E which is stored in the various parts of the plant including its leaves Which of the two foods, C or E, will give blue-black colour with dilute iodine solution ?

When asked to set up an experiment to show that 'light is necessary for photosynthesis', a student ran to the school garden and set up the experiment by using a plant growing in the school garden. The experiment failed. His classmates made the following suggestions to get success in the experiment: Student A: Safranin should be used instead of iodine Student B: The leaf should not be boiled in alcohol to remove chlorophyll before testing for starch Student C: Transparent paper should be used instead of black paper strip Student D: The leaf should be destarched before before starting the experiment The correct suggestion is given by:

LAKHMIR SINGH & MANJIT KAUR-MCQ SECTION-Exercise
  1. Four students, A, B, C and D, make the records given below, for the pa...

    Text Solution

    |

  2. The steps involved in making a slide of epidermal peel of leaf are giv...

    Text Solution

    |

  3. Given alongside is a sketch of a leaf partially covered with black pap...

    Text Solution

    |

  4. Before testing the leaf for starch at the end of the experiment, 'lig...

    Text Solution

    |

  5. Given below are the steps to be followed for performing 'starch test' ...

    Text Solution

    |

  6. The steps necessary for setting up the experiment, 'To demonstrate tha...

    Text Solution

    |

  7. On completion of the experiment to demonstrate that 'Light is necessar...

    Text Solution

    |

  8. In the experiment to show that light is necessary for photosynthesis, ...

    Text Solution

    |

  9. In the experiment to show that light is necessary for photosynthesis, ...

    Text Solution

    |

  10. A portion of each of four destarched leaves of a plant was covered wit...

    Text Solution

    |

  11. In order to destarch the leaves for an experiment to show that sunligh...

    Text Solution

    |

  12. Which one of the following is the correct combination of relevant mate...

    Text Solution

    |

  13. A protion of destarched leaf of a potted plant was covered with a bla...

    Text Solution

    |

  14. A star-shaped figure was cut in the black paper strip used for coveri...

    Text Solution

    |

  15. In an experiment to test the presence of starch in a leaf, the leaf is...

    Text Solution

    |

  16. For the experiment 'Light is necessary for photosynthesis', the potted...

    Text Solution

    |

  17. When asked to set up an experiment to show that 'light is necessary fo...

    Text Solution

    |

  18. The steps taken for setting up an experiment to demonstrate that 'ligh...

    Text Solution

    |

  19. Out of the following figures, choose the one showing the correct proce...

    Text Solution

    |

  20. A leaf of destarched healthy potted plant was covered by black paper s...

    Text Solution

    |