Chemistry Of Life: Question Preview (ID: 25944)


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Starch is a complex ____________________.
a) Lipid
b) Protein
c) Carbohydrate
d) Nucleic acid

_________________ form cellular structure, regulate chemical reactions, transport things into and out of cells and help fight disease.
a) Proteins
b) Lipids
c) Carbohydrates
d) Nucleotides

A nucleic acid has a 5-carbon sugar, a nitrogenous base and a _________.
a) monomer
b) fatty acid
c) phosphate group
d) amino acid

Lipids contain glycerol and ________________
a) amino acids
b) fatty acids
c) proteins
d) glucose

The positively charged particle in an atom is _______________
a) proton
b) neutron
c) electron
d) atom

DNA is made from monomers of
a) fatty acids
b) glucose
c) amino acids
d) nucleic acids

The monomers that make up proteins are ____________.
a) fatty acids
b) amino acids
c) glucose
d) nucleic acids

Enzymes are _____________________.
a) proteins
b) carbohydrates
c) nucleic acids
d) lipids

For living things, the first choice of fuel for life processes is _____________.
a) lipids
b) proteins
c) carbohydrates
d) water

_______________ is the most common element found in living things.
a) Carbon
b) Nitrogen
c) water
d) Phosphorus

The macromolecule that stores energy in living things and is part of membranes and waterproof coverings is ___________.
a) Protein
b) Lipid
c) nucleic acid
d) amino acid

The monomers of carbohydrates are called __________________
a) fatty acids
b) nucleic acids
c) amino acids
d) glucose

A (n)_______________ is a smaller molecule that can be bonded to other identical molecules to form a polymer (large molecule)
a) element
b) atom
c) monomer
d) molecule

Two or more atoms of different elements bonded together makes _________.
a) an element
b) a compound
c) a mixture
d) a nucleus

The smallest piece of an element is called _______________________
a) an atom
b) a compound
c) a nucleus
d) a mess

The monomers of nucleic acids are _________________
a) amino acids
b) fatty acids
c) sugars
d) nucleotides

Macromolecule that has a C:H ratio of 2:1
a) carbohydrates
b) lipids
c) protein
d) DNA

Element that can bond with many different elements and with other atoms of itself. Forms basis for most compounds of life.
a) Hydrogen
b) Carbon
c) Nitrogen
d) Phosphorus

Form the basis of genetic information (DNA and RNA)
a) carbohydrates
b) waxes
c) proteins
d) nucleic acids

Substance that speeds up the rate of a chemical reaction.
a) fat
b) glucose
c) catalyst
d) nucleic acid

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