Home
Class 11
BIOLOGY
Transport of materials across the membra...

Transport of materials across the membrane along the concentration gradient but helped by a carrier, i.e.:

A

active transport

B

facilitated diffusion

C

diffusion

D

osmosis.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CELL: THE UNIT OF LIFE

    JBD PUBLICATION|Exercise EXAMPLE|62 Videos

  • CELL CYCLE AND CELL DIVISION

    JBD PUBLICATION|Exercise EXAMPLE|148 Videos

  • MOCK TEST 2

    JBD PUBLICATION|Exercise EXERCISE|31 Videos

Similar Questions

Explore conceptually related problems

Process of transport of materials across the membrane along the concentration gradient is:

Energy released during movement of electrons through the photosystem in photosynthesis is used to drive protons the membrane against concentration gradient .As a result the protons accumulate in:

In the resting stable of the neural membrane,diffusion due to concentration gradients,if allowed,would drive:

How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?

The integrated rate equations can be fitted with kinetic data to determine the order of a reaction. The integrated rate equations for zero, first and second order reactions are : Zero order : [Al =-kt+ [A]_0 First order : log [A] = -(kt)/2.303 + log [A]_0 Second order : 1/([A])=kt+1/[A]_0 These equations can also be used to calculate the halt life periods of different reactions, which give the time during which the concentration of a reactant is reduced to half of its initial concentration, i.e, at time t_(1//2), [A] = [A]_0//2 Answer the following (1 to 5) question : For a second order reaction, the correct plot of t_(1//2) vs. 1//[A]_0 is

The integrated rate equations can be fitted with kinetic data to determine the order of a reaction. The integrated rate equations for zero, first and second order reactions are : Zero order : [Al =-kt+ [A]_0 First order : log [A] = -(kt)/2.303 + log [A]_0 Second order : 1/([A])=kt+1/[A]_0 These equations can also be used to calculate the halt life periods of different reactions, which give the time during which the concentration of a reactant is reduced to half of its initial concentration, i.e, at time t_(1//2), [A] = [A]_0//2 Answer the following (1 to 5) question : The rate for the first order reaction is 0.0069 mol L^-1 mi n^-1 and the initial concentration is 0.2 mol L^-1 . The half life period is

The integrated rate equations can be fitted with kinetic data to determine the order of a reaction. The integrated rate equations for zero, first and second order reactions are : Zero order : [Al =-kt+ [A]_0 First order : log [A] = -(kt)/2.303 + log [A]_0 Second order : 1/([A])=kt+1/[A]_0 These equations can also be used to calculate the halt life periods of different reactions, which give the time during which the concentration of a reactant is reduced to half of its initial concentration, i.e, at time t_(1//2), [A] = [A]_0//2 Answer the following (1 to 5) question : For a second order reaction, rate at a particular time is x. if the initial concentration is tripled, the rate will become

The integrated rate equations can be fitted with kinetic data to determine the order of a reaction. The integrated rate equations for zero, first and second order reactions are : Zero order : [Al =-kt+ [A]_0 First order : log [A] = -(kt)/2.303 + log [A]_0 Second order : 1/([A])=kt+1/[A]_0 These equations can also be used to calculate the halt life periods of different reactions, which give the time during which the concentration of a reactant is reduced to half of its initial concentration, i.e, at time t_(1//2), [A] = [A]_0//2 Answer the following (1 to 5) question : The decomposition of nitrogen pentoxide : 2N_2O_5(g) rarr 4NO_2(g) + O_2(g) is a first order reaction. The plot of log [N_2O_5] vs time (min) has slope = - 0.01389. The rate constant k is

State and explain de Brogile hypothesis for duality of matter and calculate the de-Brogile wavelength of an electron (i.e. a material particle).

JBD PUBLICATION-CELL: THE UNIT OF LIFE-EXAMPLE
  1. Transport of materials across the membrane along the concentration gra...

    Text Solution

    |

  2. Fill in the blanks: Main components of cytoskeleton are microtubules, ...

    Text Solution

    |

  3. Fill in the blanks: The …………….are hollow and unbranched cylinders.

    Text Solution

    |

  4. Fill in the blanks: Protonfilaments are made p of protein………….. .

    Text Solution

    |

  5. Fill in the blanks: The alpha and beta tubulin molecules are arranged ...

    Text Solution

    |

  6. Fill in the blanks: Colhicine…………….assembly of microtubules.

    Text Solution

    |

  7. Fill in the blanks: Myofilaments are prominent in………………cells.

    Text Solution

    |

  8. Fill in the blanks: Microfilaments are made up of protein actin and………...

    Text Solution

    |

  9. Fill in the blanks: Ciliary membrane is an extension of……………… .

    Text Solution

    |

  10. Fill in the blanks: ……………is the basic arrangement of microtubules in c...

    Text Solution

    |

  11. Fill in the blanks: A basal body has……………..pattern of microtubules.

    Text Solution

    |

  12. Who gave the term cell membrane?

    Text Solution

    |

  13. Name the group of organisms that do not possess intracellular membrano...

    Text Solution

    |

  14. How much is the thickness of cell membrane?

    Text Solution

    |

  15. How many layered the cell membrane appears under electrons microscope?

    Text Solution

    |

  16. What are the two major components of a biomembrane?

    Text Solution

    |

  17. Who proposed the unit membrane concept?

    Text Solution

    |

  18. Which one is the best accepted model for plasma membrane?

    Text Solution

    |

  19. Name the coat present on the cell membrane.

    Text Solution

    |

  20. Name the semipemeable membrane present around the plant cell vacuole.

    Text Solution

    |

  21. What is the main differences in simple and fascillitated diffusion?

    Text Solution

    |