Page 120 - PG 101-Course notes مذكرة النظري 24-25 with spec

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

H_Give only the term corresponding to the following sentences: -

• A type of modified parenchyma tissue with large air lacunae (spaces).
• Specialized epidermal cells found adjacent to guard cells.

• A complex organic substance composed of amino acids.
• A vascular bundle with phloem on two sides of the xylem.
• Outermost structure of plant cells surrounding the protoplast.

• A complex tissue involved in long-distance transport of water and ions.
• A modified type of parenchyma cells with an abundance of chloroplasts.

• Elongated cells with a lignified secondary cell wall with pits but no perforations; found in
the xylem of all vascular plant groups.
• A bundle in which there is no potential for the initiation of a vascular cambium, common

in monocots.
• Needle-like crystals of calcium oxalate; often occur in groups.

• An outgrowth of the epidermis on leaves, stems, and reproductive organs that lack a
secretory function.
• A tissue consisting of living cells with unevenly thickened primary cell walls that are

usually unlignified; provides strength to growing as well as non-growing regions of organs.
• A polysaccharide composed of glucose molecules, a main storage compound in plants.

• A net-like pattern of secondary cell wall deposition in tracheary elements.
• A deposit of calcium carbonate around an ingrowth of cell wall; found in an enlarged cell
called a lithocyst.

• All primary tissues in an organ other than epidermis and vascular tissues.
• A vascular bundle with phloem only on one side of the xylem.

• A structure composed of tissues.
• A complex tissue involved in transport of sugars and other compounds.

• A living portion of the cell.
• The opening (pore) in the epidermis of leaves and stems.

• A type of collenchymas in which the thickened primary cell wall is adjacent to intercellular
spaces.
• A type of vascular bundle that has the potential to initiate a vascular cambium, a feature of
dicotyledonous species.

• Group of cells that perform a specific function.
• Conducting cells in the xylem; a general term including tracheids and vessel members.

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