Questions and Answers
Where is hair synthesized and grown?
Which substance is produced by sebaceous glands to retain moisture on the skin?
What is the major protein found in hair?
What is the only approved drug testing method for workplaces covered by federal guidelines?
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Where is melanin synthesized in hair?
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What can enter hair follicles through capillaries or sebaceous glands?
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What is the starting material for the synthesis of melanin?
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Which testing method can detect drug use that has happened within the past few days?
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Which chemical group gives hair its strength and structure?
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What is the enzyme found in melanocytes that is required to help oxidize tyrosine to make melanin?
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What is the mnemonic to remember oxidation and reduction?
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What is the difference between endothelial cells and epithelial cells?
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Which reaction involves breaking and forming bonds?
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What is a special type of epithelial cell that can secrete mucus to protect the tissue lining?
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What type of compounds dissolve readily in oil or organic solvent?
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Which bonds have the most impact on the structure of hair?
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What tends to happen to weak acids when placed in an alkaline solution?
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Which drugs bind to melanin in hair?
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What are receptors?
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What is used to neutralize keratin?
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Study Notes
- Hair is synthesized and grows in hair follicles, which are internalized structures of epithelial cells.
- Keratin is the major protein found in hair and is synthesized by keratinocytes within the follicle.
- Melanin is the pigment found in hair and is synthesized by melanocytes in the hair matrix and cortex.
- Tyrosine is an amino acid found in melanocytes and is the starting material for the synthesis of melanin.
- Tyrosinase is the enzyme found in melanocytes that is required to help oxidize tyrosine to make melanin.
- Endothelial cells line blood vessels and capillaries, while epithelial cells line free surfaces like skin, nasal passages, and the gut.
- Mucosal cells are a special type of epithelial cell that can secrete mucus to protect the tissue lining.
- Lipophilic compounds dissolve readily in oil or organic solvent, while polar or charged compounds mix well with water but not with organic solvents and lipids.
- Weak acids tend to give up a H+ when placed in an alkaline solution, while weak bases tend to accept a H+ when placed in an acidic solution.
- Receptors are proteins to which hormones, neurotransmitters, and drugs bind to elicit a function once bound.
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Description
Test your knowledge of basic biology concepts with this quiz! From hair growth to cell types, amino acids to enzymes, and acid-base chemistry to protein receptors, this quiz covers a variety of fundamental topics in biology. Sharpen your understanding of key terms and concepts while improving your ability to write short and catchy titles and descriptions for quizzes. Get ready to show off your biology smarts!
