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- 1. Multiple Choice
Which of the following elements make up over 90% of living things??
CHON
CHOS
HONP
COPS
- 2. Multiple Choice
If the peptide bonds in a protein are broken down by the enzyme Peptidase, what will the products be?
fatty acids
monosaccarides
amino acids
nucleotides
- 3. Multiple Choice
what biomolecule will release energy AFTER all immediate energy (in calories consumed) has been used up?
proteins
carbohydrates
lipids
nucleic acids
- 4. Multiple Choice
which of these correctly explains monomers combining to make polymers (macromolecules)?
amino acids combine to make proteins
glucose molecules combine to make DNA
nucleotides combine to make lipids
proteins combine to make glucose
- 5. Multiple Choice
which biomolecule contains CHO in a ration of 1:2:1 ?
lipid
protein
nucleic acid
carbohydrate
- 6. Multiple Choice
which biomolecule will NOT have a carbon-nitrogen bond?
protein
nucleic acid
polypeptide
carbohydrate
- 7. Multiple Choice
All organic compounds contain carbon because....
carbon is a nonmetal
carbon oxidizes to carbon dioxide
carbon is solid at room temperature
carbon can form 4 covalent bonds
- 8. Multiple Choice
which statement about amino acids and simple sugars (monosaccarides) is correct?
they are both waste products of protein synthesis
they are both building blocks of starch
they are both needed for the synthesis of larger molecules (polymers)
they are both stored as fat in the liver
- 9. Multiple Choice
which part of an amino acid's structure makes it unique from other amino acids?
the placement of the hydrogen atom
the carboxl group
the amino group
the 'R' group or side group
- 10. Multiple Choice
The instructions for the traits of an organism are coded in the arrangement of...
glucose units in carbohydrate molecules
nucleotides making up DNA molecules
fat molecules in the cell membrane
energy rich bonds in starch molecules
- 11. Multiple Choice
what will happen to starch when amylase (in saliva) is present?
it stays the same
it is broken down into simple sugars
it is built into a larger carbohydrate molecule
it is not longer useful to humans
- 12. Multiple Choice
which describes both carbohydrates and lipids?
both are sources of cellular energy
both have the same ratio (or proportion) of hydrogen bonds
both dissolve in water
both have nitrogen
- 13. Multiple Choice
which one is a function of lipids?
forming cellular structures
transmitting nerve signals
protection and insulation of internal organs
lowering activation energy for reactions
- 14. Multiple Choice
which part of a molecule hold the ENERGY needed for life processes?
carbon
bonds
oxygen
- 15. Multiple Choice
some people cannot digest the lactose in cow's milk. The digestive systems of these people lack....
a lipid that coats the lactose
their own ability to make lactose
an enzyme that catalyzes lactose breakdown
antibodies to lactose
- 16. Multiple Choice
Amylase is an enzyme in saliva that digests carbs from food in th mouth. however, when food mixed with saliva enters the stomach... the action of amylase slows dramatically. Why is this?
the pH of the stomach is lower, much more acidic, than in the mouth
the concentration of food in less in the stomach
the temperature of the food increases in the stomach
the food is mixed more in the mouth than in the stomach
- 17. Multiple Choice
Barb deserved better.
True
False
- 18. Multiple Choice
Eleven's favorite food is.....
Twinkies
Lucky Charms
Eggos
Shamrock Shakes
- 19. Multiple Choice
While trapped in the upside down, how did Will communicate with his mom?
By email
Blinking lights
Through the television
Writing on the mirror
- 20. Multiple Choice
What is Dean's nickname for his car?
black beauty
sweet pea
baby
sally
- 21. Multiple ChoiceIn an exothermic reaction, heat is ...taken ingiven out
- 22. Multiple Choice
In an endothermic reaction, heat is ...
taken in
given out
- 23. Multiple ChoiceA catalyst works bychanging the order of the reactionincreasing the temperaturelowering the activation energymaking the activated complex
- 24. Multiple Choice
What type of reaction is this?
Exothermic
Endothermic
Catalytic
No way to tell
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