During photosynthesis in a leaf,sugars are loaded into the sieve tube by _____,followed by ______ to increase the pressure.

Question

Quizplus · Accepted Answer

Sugars are loaded into the sieve tube by active transport, which requires energy to move molecules against their concentration gradient. This increases the concentration of sugars in the sieve tube, leading to osmosis, a passive transport process where water moves from an area of lower concentration to an area of higher concentration. This increase in water volume increases the pressure in the sieve tubes, which helps to move sugars throughout the plant.

During Photosynthesis in a Leaf,sugars Are Loaded into the Sieve