Unit 6 - Chemistry Of The Body - Part 3 Flashcards
What is the term for 3 coiled chains of alpha keratin?
Supercoiled
What carries Ca2+ from the digestive tract into the bones?
Vitamin D
What is the term for skin cancer - believed to be linked to excessive exposure to the sun?
Melanoma
What is the term for the outer layer of the skin?
Epidermis
What is the term for molecules that do not have charges on the molecule?
Nonpolar molecules
What is the term for the glands that secrete mostly water and salt?
Sweat glands
What is the type of bonding that occurs in protein chains and the hydrogen is strongly attracted to a different oxygen molecule?
Hydrogen bonding
What is the term for the basic structural unit - - it is a protein chain?
Alpha keratin
What is the term for the burning of the skin in small amounts?
Tanning
What is the term for a skin darkening material that forms during sun tanning to give our skin its color?
Melanin
What is the term for the inner layer of the skin?
Dermis
What is the term for the dead skin cells on your body that clump together and close the pores?
Gene
What is the term for the molecules that have a positive and negative charge?
Polar molecules
What are the glands that secrete oil and keep the skin flexible?
Oil glands
What is the term for where each hair grows out of - it is a small, deep pocket in the scalp?
Follicle
What is the term for the bonds that form between 2 sulfur contains regions between or within a problem?
Disulfide bridges
What is the term for each hair that is made of bundles of micro fibrils surrounded by a tough outer layer?
Cuticle
What is the term for the attraction between an ionic structure in one protein chain and an oppositely charged ionic structure in a different chain?
Ionic bonding
Give an example of a polar and a non polar substance.
Water and oil
What will dissolve a polar substance?
Polar
What household cleaner will react with grease - - it is also a good cleaning agent for the kitchen but NOT your skin?
Ammonia
Why do we have sweat glands?
To keep the body’s temperature constant
What is the side effect if we secret too little oil?
Chapped lips
What is the side effect if we secret too much oil?
Clogged Pores
What are two types of glands in the skin?
Oil Gland
Sweat glands
