11 Questions
Which of the following alkaloids is not basic?
Colchicine
In which of the following alkaloids is the nitrogen not in a heterocyclic ring?
Ephedrine
From which of the following sources can alkaloids be derived?
All of the above
Which of the following alkaloids is not basic?
Colchicine
From which of the following sources can alkaloids be derived?
Bacteria
In which of the following alkaloids is the nitrogen not in a heterocyclic ring?
Ephedrine
What is the living part of the hair located at the bottom part of the hair papilla?
Hair bulb
Which part of the hair shaft is made up of dead, hard protein called keratin?
Cortex
What is the soft outer covering of the hair while it is growing beneath the epidermis?
Cuticle
Which structure produces sebum, a natural conditioner for the hair?
Sebaceous gland
Where does the human hair grow from?
Dermis
Study Notes
Alkaloids
- Not all alkaloids are basic, some are not basic.
- The nitrogen in some alkaloids is not in a heterocyclic ring.
- Alkaloids can be derived from various sources.
Hair Structure
- The living part of the hair is located at the bottom part of the hair papilla.
- The hair shaft is made up of dead, hard protein called keratin.
- The soft outer covering of the hair while it is growing beneath the epidermis is called the root sheath.
- The sebaceous gland produces sebum, a natural conditioner for the hair.
- Human hair grows from the hair follicle.
Test your knowledge of alkaloids by identifying alkaloids with unique characteristics, such as non-basic alkaloids, nitrogen not in a heterocyclic ring, and diverse plant origins.
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