How Is The Sugar Produced By Photosynthesis Transported From The Leaf?

How Is The Sugar Produced By Photosynthesis Transported From The Leaf??

Sugars produced in sources such as leaves need to be delivered to growing parts of the plant via the phloem in a process called translocation or movement of sugar. … The photosynthates from the source are usually translocated to the nearest sink through the phloem sieve tube elements.

How is the sugar made in photosynthesis transported?

Photosynthesis produces glucose in the green parts of plants which are often leaves. This is then converted into sucrose. The sucrose is transported around the plant in phloem vessels. … The movement of sucrose and other substances like amino acids around a plant is called translocation .

How is sugar transported around a plant?

Plants have two transport systems – xylem and phloem . Xylem transports water and minerals. Phloem transports sugars and amino acids dissolved in water.

How are the products of photosynthesis transported?

The sugars formed in the sources such as the leaves must be delivered to the plant’s growing parts. These sugars are translocated through the plant by the phloem. … The product of photosynthesis is transported from source of production to the storage organs through Phloem.

What transports products of photosynthesis out of the leaf?

The plant’s vascular tissues—xylem and phloem—transport water to the leaves and carry glucose away from the leaves.

How do sugars leave the leaf?

photosynthesis sugar and oxygen are produced from the carbon dioxide and water. Oxygen passes out of the leaf through the open stomata. The sugar enters the phloem and then travels throughout the plant. … Transpiration is the plant’s way of making the water absorbed by its roots move through the plant.

How are the products of photosynthesis from the leaves get transported to all other parts of plant?

The phloem (tissue) transports products of photosynthesis from the leaves (where they are synthesized) to other parts of the plant.

How are carbohydrates produced in the leaves transported to all the plant body?

Carbohydrates are mainly transported in the phloem in the form of sucrose. The cell membrane of the sieve cells contains pump proteins that actively convey sucrose into the vascular pathways.

Why is sugar transported as sucrose in plants?

Sucrose contains more energy than a monosaccharide so it is more energy efficient both in transport as in storage. … This in contrast to glucose that is reactive and can form other products during transport.

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Do plants rely on diffusion to transport sugar molecules from leaves to roots?

Plants use sunlight to produce sugar molecules in their leaves. Some of this sugar is needed by cells in the roots. Would you expect plants to rely on diffusion to transport the sugar molecules from leaves to roots and why? … Yes because all materials in living tissues move by diffusion.

In which form sugar is transported through phloem and which element helps in sugar translocation respectively?

The sugars synthesised in leaves (as a result of photosynthesis) are translocated downwards upwards and laterally to all the other organs including storage organs mainly through phloem. These sugars are translocated in the form of sucrose.

How are sugar and nutrients transported through the phloem?

The mechanism by which sugars are transported through the phloem from sources to sinks is called pressure flow. … Water follows the sugar molecules into the sieve elements through osmosis (since water passively diffuses into regions of higher solute concentration).

Where do products leave the leaf?

From where do the products leave the leaf? Oxygen and water vapor exits from the underside of the leaf and glucose exits through the veins.

What type of sugar do plants produce in photosynthesis?

sugar glucose

Photosynthesis happens in small compartments within the plant cells called chloroplasts. In a two-step process plants obtain chemical energy from sunlight. The collected energy is used in a second reaction to produce the sugar glucose.

Where do plants get their sugar from?

Plants take in light from the sun (or through artificial means) through openings in their leaves known as stomata and join together with water from the soil carbon dioxide from the air and chlorophyll from within the plant to create sugars in their leaves at sites known as chloroplasts.

Where is glucose produced in a leaf?

leaf chloroplasts

Green plants manufacture glucose through a process that requires light known as photosynthesis. This process takes place in the leaf chloroplasts. Carbon dioxide and water molecules enter a sequence of chemical reactions within the chloroplasts.

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What transports food from leaves to other parts of plants?


The transport of food from the leaves to the other parts of the plant occurs through the vascular tissue called phloem. The food (sugar) made in leaves is loaded into the sieve tubes of phloem tissue by using the energy derived from ATP.

How is the food transported in plants?

The transport of food in plants is called translocation. It takes place with the help of a conducting tissue called phloem. Phloem transports glucose amino acids and other substances from leaves to root shoot fruits and seeds. … This pressure moves the material in the phloem to tissues which have less pressure.

How does transport in plants take place?

Plants have tissues to transport water nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant while phloem transports sucrose and amino acids between the leaves and other parts of the plant.

In what forms can plants transport and store the carbohydrates produced in photosynthesis?

Polysaccharides are storage and transport forms of carbohydrates produced by photosynthesis.

Which element is essential for transport of sugars in plants?

element Boron

Correct answer: The element Boron is very much essential for the translocation of sugars in plants.

Which of the following are used for transportation of carbohydrates sugars in the vascular plants?

Xylem transports and stores water and water-soluble nutrients in vascular plants. Phloem is responsible for transporting sugars proteins and other organic molecules in plants.

What is the movement of sugars through a plant called?

Sugars produced in sources such as leaves need to be delivered to growing parts of the plant via the phloem in a process called translocation or movement of sugar.

How is sucrose formed in photosynthesis?

Sucrose-P is dephosphorylated by sucrose phosphate phosphatase (SPP) to form sucrose (Suc) the primary product of photosynthetic tissues and the main sugar transported from the source tissues through the phloem to non-photosynthetic tissues (sink tissues) in most plants (Ruan 2014).

Which factors affect the specific sugar and signal transport pathways from source to sink leaves?

  • Proximity or organs (how close the source is to the sink)
  • Development (root and shoot apices are key sinks during vegetative growth seeds and fruits during reproductive growth)
  • Vascular connections (leaves preferentially supply sinks to which they are directly connected)

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What pathway would sugar molecules manufactured in a leaf follow on their way to a growing root tip?

Sugars produced in sources such as leaves need to be delivered to growing parts of the plant via the phloem in a process called translocation. The points of sugar delivery such as roots young shoots and developing seeds are called sinks.

What kind of sugar is transported through phloem?


The sugars blended in leaves (because of photosynthesis) are moved downwards upwards and horizontally to the wide range of various organs including capacity organs chiefly through phloem. These sugars are moved as sucrose. Hence the correct answer is option C-Sucrose.

What is the direction of movement of sugar in phloem?

The direction of the movement of sugar in the phloem is bidirectional as it depends on the source-sink relationship which is variable in the plants. Thus the answer is option D- Bi-directional.

Is glucose transported in plants?

In plants sugars are produced through photosynthesis in leaves. … SWEETs transport diverse substrates including glucose and sucrose which is involved in long-distance sugar transport through a phloem loading mechanism from the source (leaves) to sink (fruits roots) tissue.

Where do the products of photosynthesis enter the leaf?


Plants have a waxy cuticle on their leaves to prevent desiccation or drying out. Carbon dioxide and oxygen cannot pass through the cuticle but move in and out of leaves through openings called stomata (stoma = “hole”).

What part of the leaf is photosynthesis taking place?


Photosynthesis takes place inside the chloroplasts that sit in the mesophyll of the leaves. The thylakoids sit inside the chloroplast and they contain chlorophyll which absorbs the different colours of the light spectrum to create energy (Source: Biology: LibreTexts).

How do reactants of photosynthesis get into the leaf?

Explanation: So the reactants of photosynthesis are water carbon dioxide and light energy. … Basically the roots absorb the water and transports it up the xylem which gets it to the leaves. Carbon dioxide reaches the chloroplasts in the leaves via a stomata.

How is sugar produced?

Sugar is made in the leaves of the sugarcane plant through photosynthesis and stored as a sweet juice in sugarcane stalks. Sugarcane is cut down and harvested then sent to a factory. At the factory cane juice is extracted purified filtered and crystalized into golden raw sugar.

For what purpose does a plant use the sugars produced during photosynthesis?

Plants use sugars produced in photosynthesis to make energy and create structures for the plant.

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