intro and plant tissue qiz

REVISION QUIZ(FROM INTRODUCTION TO PLANT TISSUE SYSTEM)
1. Define the following terms:
    A.Pharmacognosy
    B.Crude drug
    C. Ethnobotany
    D.Ethnopharmacology
    E.Natural product

2. With at least four examples of crude drugs,mention the main three sources of crude drugs

3. How do primitive man acquired the knowledge of medicinal properties of the plant?

4.Give the differences of the following terms;
    1.amphivasal and amphicribral
    2.meristematic tissue and permanent tissue(at least three points)
    3.sclereids and fibers(at least two points)
    4.vessel and tracheids(at least three points)
    5.collateral and bicollateral

5.a). Mention three types of meristem based on location
   b).Outline functions of each type

6.1.list three types of simple tissue
   2.Outline five characteristics of parenchyma tissue
7. Give short explanation of the following terms:
  a). Sieve element (at least four points)
  b). Campanion cells ( at least four points)
8. Outline categorize of plant tissue system
9. explain the functions of natural products
10. explain the functions of epidermal tissues
               all the best