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Questions and Answers
True or false: The cork cambium (phellogen) produces wood towards the exterior of the stem.
True or false: The cork cambium (phellogen) produces wood towards the exterior of the stem.
False (B)
True or false: The middle bark is the area between the inner bark and the phloem.
True or false: The middle bark is the area between the inner bark and the phloem.
False (B)
True or false: The inner bark consists of the phloem which is separated from the wood by the vascular cambium.
True or false: The inner bark consists of the phloem which is separated from the wood by the vascular cambium.
True (A)
True or false: Barks used medicinally may only represent the outer bark region.
True or false: Barks used medicinally may only represent the outer bark region.
True or false: The cork cambium (phellogen) produces cork cells (phellen) towards the interior.
True or false: The cork cambium (phellogen) produces cork cells (phellen) towards the interior.
True or false: The bark tends to curve longitudinally during drying.
True or false: The bark tends to curve longitudinally during drying.
True or false: The middle bark is the area between the outer bark (cork) and the phloem (inner bark).
True or false: The middle bark is the area between the outer bark (cork) and the phloem (inner bark).
True or false: The bark consists of the phloem which is separated from the wood by the vascular cambium.
True or false: The bark consists of the phloem which is separated from the wood by the vascular cambium.
True or false: Barks used medicinally may represent all three areas: outer bark, middle bark, and inner bark.
True or false: Barks used medicinally may represent all three areas: outer bark, middle bark, and inner bark.
List the active constituents of colophony and their percentage composition.
List the active constituents of colophony and their percentage composition.
Explain the origin and solubility of colophony.
Explain the origin and solubility of colophony.
What are the medicinal uses of colophony and which active constituent is responsible for these uses?
What are the medicinal uses of colophony and which active constituent is responsible for these uses?
True or false: The bark tends to curve transversely during drying.
True or false: The bark tends to curve transversely during drying.
Describe the confirmatory chemical tests for abietic acid in colophony.
Describe the confirmatory chemical tests for abietic acid in colophony.
Explain how colophony is used in medicinal and industrial applications, and which active constituent is responsible for its properties in these applications.
Explain how colophony is used in medicinal and industrial applications, and which active constituent is responsible for its properties in these applications.
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