How is food transport in phloem different from water transport in xylem?
Answer and explanation
Correct answer: Food in phloem can move in both directions according to need
The governing concept is transport in vascular tissues. Xylem mainly carries water and dissolved minerals from roots towards the shoots, generally upward. Phloem translocates sugars made in leaves from a source to a sink, such as roots, fruits, or growing tissues. Because sources and sinks may occur at different positions, phloem transport can be upward or downward according to need. Thus option A is correct; the other choices wrongly assign water, food, or blood to these plant tissues.
Frequently asked questions
What is the correct answer to this question?
Food in phloem can move in both directions according to need
Why is this the correct answer?
The governing concept is transport in vascular tissues. Xylem mainly carries water and dissolved minerals from roots towards the shoots, generally upward. Phloem translocates sugars made in leaves from a source to a sink, such as roots, fruits, or growing tissues. Because sources and sinks may occur at different positions, phloem transport can be upward or downward according to need. Thus option A is correct; the other choices wrongly assign water, food, or blood to these plant tissues.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Transportation.
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