Question

Sulphate uptake by plant is through
A) Passive transport
B) Active transport
C) Imbibition
D) Osmosis

Answer 1

sulphate uptake by plant is through osmosis

Answer 2

Sulphate uptake by plants is through B) Active transport.

Active transport:

• In plants, a form of movement known as "active transport" harnesses stored energy to move particles in the opposite direction of the concentration gradient.
• It happens in the root cells of a plant by absorbing water and minerals.
• In cellular biology, active transport is the movement of molecules against the concentration gradient across a cell membrane from an area of lower concentration to a region of greater concentration.
• Cellular energy is needed for active transport in order to achieve this movement.
• Active transport is the use of cellular energy to move molecules across a cell membrane.

Passive transport:

• Without the need for external energy, passive transport is the fundamental movement of ions and other molecules within the cells along the concentration gradient.
• It also goes by the name passive diffusion.

Imbibition:

• When liquid is absorbed by solids or colloids and results in an increase in volume, the process is known as imbibition.
• Along a concentration gradient, the water surface potential moves; some dry materials also absorb water.
• Imbibition requires a gradient between the liquid and the absorbent.

Osmosis:

• Osmosis is the naturally occurring net movement or diffusion of solvent molecules across a selectively permeable membrane from an area of high water potential to a region of low water potential in a manner that tends to balance the solute concentrations on the two sides.

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