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Movement and accumulation of ions across...

Movement and accumulation of ions across a membrane against their concentration gradient can be explained by

A

facillitated diffusion

B

passive transport

C

active transport

D

osmosis

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Assertion :- Glucose, Na^(*) and anibi acids are absorbed activity. Reason :- Na^(*) , glucose and amino acids are move against the concentration gradient and hence require energy.

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Knowledge Check

  • The movement of Ions against the concentration gradient will be -

    A
    Active transport
    B
    Osmosis
    C
    Diffusion
    D
    All

  • Movement of meterials against concetration gradient is due to

    A
    Active transport
    B
    Passive transport
    C
    Diffusion
    D
    Osmosis

  • Molecules which are transported across the membrane against their concentration gradient, i.e., from the lower to higher concentration . Such a transport is called

    A
    Active transport, e.g., diffusion
    B
    Passive transport, e.g., diffusion
    C
    Active transport, e.g., `Na^(2+) /K^(+)` pump
    D
    Osmosis, a type of simple diffusion

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    The type of diffusion in which substances move across the membrane along their concentration gradient in the presence of certain carriers or transport proteins is called as

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

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