AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The function of phloem is to ____
A
transport minerals from the root to the leaves
B
transport sucrose formed during photosynthesis from the leaves to other parts of the plant
C
transport glucose formed during photosynthesis from the leaves to other parts of the plant
D
transport sucrose formed during photosynthesis from the root to other parts of the plant
Explanation: 

Detailed explanation-1: -In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate ), particularly sucrose; a sugar, to all parts of the plant.

Detailed explanation-2: -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-3: -Phloem is one of the two tissues that make up the plant’s long-distance transport system, the other being xylem. Phloem translocates water and products of photosynthesis from source tissues to the sink regions where they are utilized or stored.

Detailed explanation-4: -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.

Detailed explanation-5: -The phloem moves food substances that the plant has produced by photosynthesis to where they are needed for processes such as: growing parts of the plant for immediate use. storage organs such as bulbs and tubers. developing seeds.

There is 1 question to complete.