Examkin

Question

Difficulty: EasyThallophytes, Bryophytes, and Pteridophytes

Which of the following structural features distinguishes pteridophytes from bryophytes?

  1. Presence of well-developed vascular tissuesAnswer
  2. B
    Absence of true roots, stems, and leaves in pteridophytes
  3. C
    Extracellular saprophytic digestion of organic nutrients
  4. D
    Conduction of manufactured organic food upwards through xylem vessels

Answer

The presence of well-developed vascular tissues (xylem and phloem) distinguishes pteridophytes from bryophytes.
Pteridophytes are vascular cryptogams that possess true vascular tissues (xylem for water transport and phloem for food transport), which allows them to achieve larger physical sizes than non-vascular bryophytes.

Step-by-Step Solution

1
Identify the structural characteristics of bryophytes
Bryophytes are non-vascular plants lacking true xylem and phloem, relying on diffusion and osmosis.
Understanding the evolutionary level of mosses and liverworts helps determine their structural limits.
2
Identify the structural characteristics of pteridophytes
Pteridophytes are vascular seedless plants possessing specialized xylem and phloem tissues.
Comparing vascular structure isolates the key evolutionary advancement between the two groups.

Key Concept

Vascular differentiation between Bryophytes and Pteridophytes
Estimated Time:45s
Rate this question

Topics

Thallophytes, Bryophytes, and Pteridophytes

More questions from this topic