Advanced Science Primary 5 Systems

A plant was placed in a beaker of red-coloured water. After two hours, the stem was cut cross-wise. Which part of the stem would be stained red?

A The outer tubes (phloem)
B The leaves only
C The entire stem
D The inner tubes (xylem)
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Worked Solution

Step 1: Identify the function of xylem (transporting water and minerals from roots). Step 2: Red-coloured water follows the same path as clear water. Step 3: Xylem is located in the inner part of the vascular bundle in most stems.

Correct answer: The inner tubes (xylem)

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