Page 118 - PG 101-Course notes مذكرة النظري 24-25 with spec

Medicinal plants (PG 101) Level 1 Clinical Pharmacy-PharmD

• ---------------- are very narrow, slender, long needles-like crystals, commonly
occurring in bundles.
• ----------------------- are hard dead cells with strongly thickened lignified and pitted
walls

• -------------- and ----------------- are colored brown or black with a 1% solution of
osmic acid.

• The ----------------------- is the primary protective tissue in young plants.
• Within an elongated epidermal cell, a small outgrowth of the cell arises and
becomes impregnated with calcium carbonate in clusters known as ----------------

-----.
• Parenchyma cells perform several functions in the plant e.g., they act as a ---------

----------------.
• As regards the cell arrangement and mode of thickening, there are three types of
collenchymas, ----------------, -------------- and ----------.

• The principal water conducting tissue in the plant is -------------------while the food
conducting tissue is -----------------------.

• All the higher plants are built-up of small living units called ---------.
• Aleurone grains are stained red with --------------------, yellowish brown with -----
------------- and yellow with ------------------ leaving the globoids unstained.

B-Encircle the correct answer: -

• Hairs are described as glandular when:

(having bicellular stalk – having multicellular stalk – having secretory head).
• Chlorenchyma are a type of:
(sclerenchyma – collenchymas – parenchyma).

• Unlike animal cells, most plant cells are surrounded by:
(cell wall – vascular cambium – vacuole).

• Fibers and sclerides are types of:
(collenchyma – parenchyma – sclerenchyma).
• The continued growth of plants throughout their lives depends upon the

activity of:
(vascular tissues – meristematic tissues – permanent tissues).

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