Which of the following is not a net sink for products of photosynthesis in a deciduous angiosperm tree?

Question

Quizplus · Accepted Answer

In early spring, the tree has not yet produced new leaves, so the leaves cannot be a sink for the products of photosynthesis. Flowers and fruits are sinks during their respective seasons as they require energy and nutrients from the tree. Roots are also sinks in the autumn as the tree stores energy and nutrients for the winter. However, in early spring, the roots are just beginning to grow and are not yet actively absorbing nutrients from the surrounding soil, so they are not a significant sink.

Which of the Following Is Not a Net Sink for Products