AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these helps in transport of food from leaves to other parts of plant?
A
Xylem
B
Phloem
C
Stomata
D
Guard cells
Explanation: 

Detailed explanation-1: -The transportation of food from the leaves to the other parts of the plant takes place through the vascular tissue called phloem. Using the energy obtained from ATP, the food (sugar) produced in leaves is loaded into the sieve tubes of phloem tissue.

Detailed explanation-2: -The process of movement of food from the leaves to the other parts of the plant is called translocation. Translocation of food takes place through the phloem which carries the food produced through photosynthesis in the leaves to the other plant parts.

Detailed explanation-3: -Final answer: Phloem transports food from the leaf to other parts of the plant.

Detailed explanation-4: -Phloem transports carbohydrates, produced by photosynthesis and hydrolysis of reserve compounds, to sink tissues for growth, respiration and storage. At photosynthetic tissues, carbohydrates are loaded into phloem (Rennie and Turgeon 2009), a process that raises the solute concentration.

Detailed explanation-5: -Food is synthesized in the green parts of a plant. The non-green parts are depended on the photosynthetic cells for nourishment. The food in the form of sucrose is transported by the vascular tissue phloem.

There is 1 question to complete.