This quiz works best with JavaScript enabled. Home > Agriculture > Plant Physiology > Plant Functions > Plant Physiology – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Plant Physiology Quiz 1 (1 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This tissue is composed of mostly living cells:sieve cells in conifers and; sieve tube elements with companion cells in hardwoods: A) Functional phloem. B) Functional xylem. C) Parenchyma cells. D) None of above. Show Answer Correct Answer: A) Functional phloem. Related QuizzesPlant Physiology QuizzesAgriculture Quizzes 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books