Atoms And Compounds Of The Hair Flashcards
(25 cards)
What are the primary atoms that make up hair?
Carbon, hydrogen, oxygen, nitrogen, and sulfur.
True or False: Hair is primarily composed of water.
False.
Fill in the blank: The protein that makes up hair is called _______.
keratin.
Which atom is most abundant in the structure of hair?
Carbon.
What type of bond forms between the atoms in keratin?
Covalent bonds.
True or False: Nitrogen is a component of amino acids that form keratin.
True.
What role does sulfur play in hair structure?
It forms disulfide bonds that contribute to hair strength and shape.
Multiple Choice: Which of the following atoms is NOT found in hair? A) Oxygen B) Iron C) Carbon D) Sulfur
B) Iron.
Short Answer: What is the chemical formula for keratin?
There is no single chemical formula; keratin is a complex protein made of various amino acids.
Fill in the blank: Hair is primarily made up of _______ chains.
polypeptide.
What is the significance of the hydrogen atoms in hair?
They are involved in forming hydrogen bonds that affect hair’s texture and strength.
True or False: Oxygen atoms play a minor role in the composition of hair.
True.
Multiple Choice: Which atom contributes to the unique properties of curly hair? A) Carbon B) Sulfur C) Nitrogen D) Hydrogen
B) Sulfur.
Short Answer: What type of structure do the amino acids in keratin form?
A helical structure.
What other biological molecule shares similar atoms with hair?
Nails.
Fill in the blank: The presence of _______ in hair can affect its color.
melanin.
True or False: Hair is composed solely of keratin.
False.
Multiple Choice: Which of the following is a key atom in the formation of disulfide bonds in hair? A) Nitrogen B) Carbon C) Sulfur D) Oxygen
C) Sulfur.
Short Answer: What is the primary function of keratin in hair?
To provide strength and protection.
What is the role of carbon in hair’s structure?
It forms the backbone of the keratin protein.
Fill in the blank: Hair’s structure is primarily made up of _______ and _______ chains.
carbon; nitrogen.
True or False: The atoms in hair can vary based on genetic factors.
True.
What is the impact of environmental factors on the atoms in hair?
They can cause changes in the chemical composition and structure of hair.
Short Answer: How does the presence of nitrogen affect hair?
It contributes to the formation of amino acids that make up keratin.
