Bio 2nd Q Exam Question Preview (ID: 45547)


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________________speeds up reactions
a) isotopes
b) Lipids
c) chemicals
d) enzymes

If a reaction releases energy in one direction, it would do what in the opposite?
a) also release energy
b) Absorb energy
c) destroys energy
d) slows down energy

activation energy is
a) The energy needed to end a reaction
b) The energy needed to slow down a reaction
c) The energy needed to stall a reaction
d) The energy needed to get a reaction started

____________ go into a reaction, _____________are made from the reaction
a) reactants, products
b) products, reactants
c) reactants, reactants
d) enzymes, reactants

Chemical reactions.....
a) destroys one set of chemicals to make another
b) changes one set of chemicals into another
c) produces one set of chemicals into another
d) half one set of chemicals to double another

Atoms are ___________________ in chemical reactions
a) destroyed
b) created
c) suspended
d) rearranged

What is the role of carbohydrates?
a) To provide energy
b) to store genetic information
c) To store energy
d) To fight diseases

What is NOT a role of proteins?
a) Fight disease
b) Storing genetic information
c) control rates of reactions
d) move substances in or out of cells

What is the monomer for DNA?
a) nucleotide
b) monosaccharide
c) fatty acid and glycerol
d) amino acid

monomers make up
a) polymers
b) enzymes
c) chemical reactions
d) monosaccharides

Enzymes are which type of macromolecule?
a) Proteins
b) Carbohydrates
c) Lipids
d) Nucleic Acids

How many atoms are in 2NH?
a) 2 nitrogen and 2 hydrogen
b) 1 nitrogen and 1 hydrogen
c) 2 nitrogen and 1 hydrogen
d) 1 nitrogen and 2 hydrogen

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