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WorksheetsChemistry of Living Things
Total questions: 14
Worksheet time: 24mins
Name
Class
Date
1.
The monomer, building block, of DNA and RNA; made up of a sugar, phosphate, and nitrogenous base
a)
Amino Acid
b)
Fatty Acid
c)
Nucleotide
d)
Monosaccharide
2.
Which of the big 4 is used for long-term energy storage, insulation, and protection?
a)
Lipids
b)
Proteins
c)
Nucleic acid
d)
Carbohydrates
3.
The structure was formed by the reaction called
a)
Hydrolysis
b)
Dehydration Synthesis
c)
Catalyst
d)
Homeostasis
4.
A molecule with a slight positive and slight negative end is characterized as what type of molecule?
a)
ion
b)
polar
c)
nonpolar
d)
none of these
5.
Monomer is to Macrocolecule like ___ is to ____
a)
Building is to Bricks.
b)
Brick is to Building.
c)
Carpenter is to Building.
d)
Building is to Carpenter.
6.
A student is preparing to run in a school track competition. For the quickest source of energy, the student should eat a food that contains a high percentage of...
a)
carbohydrates
b)
fat
c)
proteins
d)
sodium
7.
Which is true about the structure of starch molecules and protein
molecules?
molecules?
a)
Starches and proteins are both polymers.
b)
Starches and proteins are both amino acids.
c)
Starches and proteins are both built from simple sugars.
d)
Starches and proteins are both built from nucleic acids.
8.
Which is a least likely primary function of proteins?
a)
to act as an organic catalyst
b)
to supply short-term energy
c)
to build and repair damaged cells
d)
to defend against foreign invaders
9.
Which organic molecule is paired with its function?
a)
nucleic acid : to store energy
b)
proteins : to provide insulation
c)
lipids : to regulate metabolic processes
d)
carbohydrate : to provide quick–release energy
10.
Fats are specialized lipid molecules, and enzymes are specialized protein molecules. How do
the functions of fats and enzymes differ?
the functions of fats and enzymes differ?
a)
Fats are structural building materials, while enzymes are transportation molecules.
b)
Fats provide support for cells, while enzymes lower the pH of gastric fluids.
c)
Fats regulate body functions, while enzymes denature invasive bacteria.
d)
Fats are storage molecules, while enzymes are catalytic molecules.
11.
Bond created by the weak attraction of a slightly positive hydrogen atom to a slightly negative portion of another molecule
a)
polar molecule
b)
solution
c)
adhesion
d)
hydrogen bond
12.
Is light an internal or external stimulus?
a)
Internal
b)
External
13.
which of the factors not affecting the internal environment?
a)
Temperature
b)
Respiration
c)
pH value
d)
Osmotic pressure
14.
Identify the function(s) of water.
a)
Provides protection by providing cushion
b)
Acts as a transport medium
c)
Participates in chemical reactions
d)
Acts as a solvent for sugars, salt, and other solutes
e)
Reduces sudden temperature fluctuations
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