Home
Class 12
BIOLOGY
Consider the following events involved i...

Consider the following events involved in stomatal opening
1. Turgor pressure of guard cells increases
2. `K^(+)` ions move into guard cells
3. Formation of malic acid
4. Water moves into guard cells
What is the correct sequence of these events leading to opening of stomata ?

A

2-4-3-1

B

3-2-4-1

C

2-3-4-1

D

3-1-2-4

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THE LIVING WORLD

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|124 Videos

  • Viruses

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|21 Videos

Similar Questions

Explore conceptually related problems

The ……..... Pressure of the guard cell is responsible for the opening of stomata.

The hormones which help in the intake of K^(+) ions by guard cells and hence speed up the opening of stomata are

Which of the following get accumulated in vacuoles of guard cells during stomatal opening?

Select the correct events leading to the opening of the stomata (i) Decline in guard cell solutes (ii) Lowering of osmotic potential of guard cells (iii) Rise in potassium levels in guard cells (iv) Movement of water from neighbouring cells into guard cells (v) Guard cells becoming flaccid

During the opening of stomata , the organic malate ions are produced in the guard cells for maintaining the

[A]: Stomata open when guard cells have more H^+ . [R]: Increased K^+ concentrations results in exo-osmosis in guard cells.

What causes the opening and closing of guard cells of stomata during transpiration?

What causes the opening and closing of guard cells of stomata during transpiration?

Identify the correct statements and find out the correct combination ? 1. Accumulation of K^(+) ions in guard cells does not require energy 2. A high pH favours stomatal opening 3. Movemant of chloride ions into guard cells is in response to electrical differential created by K^(+) ions 4. With entry of several K^(+) ions and chloride ions, water potential of guard cells increases .

Consider the following statements Lateral roots originate 1. Endogenously 2. From pericycle cells 3. Exogenously 4. From endodermal cells which of theses statement are correct ?

TRUEMAN BIOLOGY-TRANSPORT IN PLANTS-Multiple Choice Questions
  1. Most of the water lost by the plant through transpiration exits throug...

    Text Solution

    |

  2. Consider the following statements 1. Xylem vessels are semi-permeab...

    Text Solution

    |

  3. Consider the following events involved in stomatal opening 1. Turgo...

    Text Solution

    |

  4. Consider the following statements Osmosis is a process of transport...

    Text Solution

    |

  5. Which of the following molecules is capable of generating the greates...

    Text Solution

    |

  6. The diagram illustrates stomatal closing . The major mistake in the d...

    Text Solution

    |

  7. Pressure potential of a plant cell and its turgor pressure are

    Text Solution

    |

  8. In simple osmotic systems, at constant temperatures , the water pote...

    Text Solution

    |

  9. Addition of KCN reduces the rate of water absorption in the root. This...

    Text Solution

    |

  10. The carrier - mediated cotransport in which a solute is actively trans...

    Text Solution

    |

  11. Match List -I with List -II and select the correct answer using the co...

    Text Solution

    |

  12. A minimum ratio of transpiration to photosynthesis will be observed on...

    Text Solution

    |

  13. uptake of glucose in the intestine

    Text Solution

    |

  14. The accompanying figure depicts movement of a solute across a membrane...

    Text Solution

    |

  15. LAR or leaf area ratio is the total area of leaves per total plant wei...

    Text Solution

    |

  16. A few properties of various transport systems of cells are given in th...

    Text Solution

    |

  17. The osmotic pressure of 0.1 M glucose and 0.1 M sucrose solution are ...

    Text Solution

    |

  18. Addition of chemical fertilizers claims increased irrigation to avoid ...

    Text Solution

    |

  19. During the opening of stomata , the organic malate ions are produced ...

    Text Solution

    |

  20. The translocation of organic solutes in sieve tube members is supporte...

    Text Solution

    |