Articles > Stems – Quiz Stems – Quiz Quiz Choose the best answer. 1. The outermost meristem of the stem Protoderm Procambium Ground meristem 2. The innermost layer of the stem Protoderm Procambium Ground meristem 3. The cell layer in between the primary xylem and the primary phloem Vascular cambium Ground tissue Sclerenchyma 4. The central cylinder consisting of primary xylem, phloem, and pith as found in young stems and roots Procambium Vascular cambium Stele 5. Which of the following is true about monocot stems? Vascular bundles arranged in a ring-like pattern Lateral growth at the vascular cambium Scattered vascular bundles Send Your Results (Optional) Your Name To Email Time is Up!