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- 1. Multiple Choice
When they bond, atoms lose or gain electrons this makes them:
Ions
Only negatively charged
only positively charged
Polar
- 2. Multiple Choice
Which is an example of a polysacharride?
Protiens
Lipids
Monomers
Carbohydrates
- 3. Multiple Choice
Two elements sharing electrons share a ___ bond.
Ionic
Covalent
Hydrogen
Peptide
- 4. Multiple Choice
Water molecules are attracted to each other through ___ bonds.
Hydrogen
covalent
Ionic
Peptide
- 5. Multiple Choice
A solution has a pH of 10, another has a pH of 2. Which has a higher concentration of hydrogen cations?
The pH of 10
pH of 12
They are equal.
pH of 2
- 6. Multiple Choice
Glycogen is found in animals and is used:
To form structures like cellulose
To form hair and nails
To store energy short term
To store energy long term
- 7. Multiple Choice
dextrose and maltose are:
Sugars
Enzymes
Polysaccharides
Lipids
- 8. Multiple Choice
Lipids store energy and also are:
Enzymes
Monomers
hormones and steroids
Cellulose and chitin
- 9. Multiple Choice
What elements are often found in organic compounds?
carbon, hydrogen, and oxygen
carbon, hydrogen, and sodium
nitrogen, hydrogen, and oxygen
chlorine, nitrogen, and phosphorus
- 10. Multiple Choice
Lactase and Sucrase are
Sugars
Enzymes
Polysaccharides
lipids
- 11. Multiple Choice
The structure and function of a protein is determined by
the type and order of its amino acids.
its size.
Number of fatty acids it contains.
None of the above
- 12. Multiple Choice
Surface tension ______ by the addition of soap to water because of less _______ between water molecules.
increases; adhesion
decreases; specific heat
increases; polarity
decreases; hydrogen bonding
- 13. Multiple Choice
Nucleotide of DNA contain all of the following except
Ribose
Nitrogen base
Phosphate group
Deoxyribose
- 14. Multiple Choice
The graph is showing a _____ reaction and will feel _____ to touch.
endothermic; cold
exothermic; hot
endothermic; hot
exothermic; cold
- 15. Multiple Choice
The red line is a reaction that ______ involve an enzyme because the activation energy is _____.
does not; lower
does not; higher
does; lower
does; higher
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