Sucrose is transported by the vascular tissue phloem from a source to a sink. Source is the place which synthesises the food, i.e., the leaf and sink is the part that needs or stores the food.

What is source and sink in phloem?

Sucrose is transported by the vascular tissue phloem from a source to a sink. Source is the place which synthesises the food, i.e., the leaf and sink is the part that needs or stores the food.

Does phloem go from source to sink?

The high turgor pressure drives movement of phloem sap by “bulk flow” from source to sink, where the sugars are rapidly removed from the phloem at the sink. Removal of the sugar increases the Ψs, which causes water to leave the phloem and return to the xylem, decreasing Ψp.

What is source and sink in translocation?

Translocation is the movement of organic compounds (e.g. sugars, amino acids) from sources to sinks. The source is where the organic compounds are synthesised – this is the photosynthetic tissues (leaves) The sink is where the compounds are delivered to for use or storage – this includes roots, fruits and seeds.

What is Sink cell?

sieve-tube element: a type of plant cell located in the phloem that is involved in the movement of carbohydrates. sink: where sugars are delivered in a plant, such as the roots, young shoots, and developing seeds.

How does sap move from the sieve tube into a sink?

Sap moves through phloem via translocation, the transport of dissolved materials in a plant. Unlike the xylem, which can only carry water upward, phloem carries sap upward and downward, from sugar sources to sugar sinks: Sugar sources are plant organs such as leaves that produce sugars.

Are seeds sources or sinks?

The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks. Seeds, tubers, and bulbs can be either a source or a sink, depending on the plant’s stage of development and the season. The products from the source are usually translocated to the nearest sink through the phloem.

What is a source and a sink?

A source is any process or activity through which a greenhouse gas is released into the atmosphere. Both natural processes and human activities release greenhouse gases. A sink is a reservoir that takes up a chemical element or compound from another part of its natural cycle.

What is meant by sink and source?

Sink and Source are terms used to define the flow of direct current in an electric circuit. A sinking input or output circuit provides a path to ground for the electric load. A sourcing input or output provides the voltage source for the electric load.

What is source sink concept?

In crop plants, the physiological basis of dry matter production is dependent on the source-sink concept, where the source is the potential capacity for photosynthesis and the sink is the potential capacity to utilize the photosynthetic products.

What is the flow of source and sink in phloem?

ADVERTISEMENTS: In this article we will discuss about the Flow of Source and Sink in Phloem Translocation. It is the long distance movement of organic substances from the source or supply end (region of manufacture or storage) to the region of utilization or sink.

What is phloem translocation?

In this article we will discuss about the Flow of Source and Sink in Phloem Translocation. It is the long distance movement of organic substances from the source or supply end (region of manufacture or storage) to the region of utilization or sink.

What is a sugar sink?

The sugar sinks are the plant organs that consume or store sugar, such as the roots. In the picture to the left it shows how the source and the sink work and in what directions they flow.

What is the relationship between xylem and phloem?

Coupled together never leaving one anothers sides they are the heart and lungs, the source and sink, the sun and the moon. Although not always studied together, xylem has been more broadly studied partially because phloem it’s harder to measure. Xylem is involved in the movement of water through the plants from the roots to leaves.