1) What is the primary function of xylem? a) Transport water b) Store nutrients c) Photosynthesis d) Reproduction 2) What does xylem transport? a) Sugars b) Water and minerals c) Proteins d) Oxygen 3) What is the main component of xylem walls? a) Cellulose b) Lignin c) Chitin d) Keratin 4) What direction does xylem transport substances? a) Upwards b) Downwards c) Sideways d) Circular 5) What is the appearance of xylem vessels? a) Hollow tubes b) Solid rods c) Flat sheets d) Spiral strands 6) Which part of the plant contains xylem? a) Roots b) Leaves c) Flowers d) Fruits e) stem 7) What is the role of lignin in xylem? a) Strengthen walls b) Store energy c) Absorb light d) Produce food

Xylem Structure and Function Quiz

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