Chemistry Flashcards
1
Q
THREE examples of micros that survive a long time in dry conditions
A
- Hepatitis B. Virus: Viable 7 days, survived on environmental surfaces at room temp.
- Tuberculosis: Viable for months; have a waxy cell wall that prevents it from drying out
- Endospores : Survive harsh conditions; dormant
2
Q
Desiccation
A
Drying out
3
Q
Endospores
A
“Bomb shelter” in vegetative state
4
Q
Ions
A
Atoms that have gained/lost an electron; atoms w/ charge
5
Q
Polar molecules
A
Molecules with areas of partial positive and negative charge
6
Q
Organic Molecules
A
- Lipids
- Nucleic Acids
- Carbohydrates
- Proteins
7
Q
Microbes
A
Small organisms that grow and increase population in water .
They can survive but not grow in dry conditions
8
Q
polymers w/ their monomers
A
- lipids - fatty acids
- carbohydrates - monosaccaride
- nucleic acids - nucleotide
- proteins - amino acids
9
Q
Monomer
A
Individual molecules that make a polymer
10
Q
Polymer
A
Many monomers linked together
11
Q
Peptide Bond
A
Bonds that link to amino acids
12
Q
Polypeptide
A
Linear sequence that folds into proteins w/ 3d shape
13
Q
Protein shape
A
Determines its function
14
Q
Carbohydrates
A
Sugars .
- monosaccharides
- polysaccharides
- Disaccharides
15
Q
Example of polysaccharide
A
Dextran - “ poly-glucose”
Stick/adhere to teeth
