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34 Cards in this Set

  • Front
  • Back
What is not an organic macromolecule?
ice
Without enzymes, chemical reactions necessary for life would not occur at a rate sufficient to sustain life. T/F
True
The molecule on which an enzyme acts is called a(n)
substrate
Enzymes speed up a chemical reaction by increasing the activation energy of the reaction T/F
False
Liquid fats called oils contain
mostly unsaturated fatty acids
Nonpolar molecules dissolve well in water T/F
False
Atoms are composed of
protons
neurtons
electrons
Water is an example of an ionic compound T/F
True
Two types of nucleic acids are
DNA and RNA
A covalent bond forms between two atoms that share electrons to form a molecule T/F
True
Mr. Luring Bio1
Chapter 2
cut apart and study
Lipids are
nonpolar molecules
An element is made up of more than one kind of atom. T/F
False
What is a kind of carbohydrate?
sucrose
Adhesion is an attracton between different substances T/F
True
collagen is an example of
protein
Acidic solutions have a pH that is
less than 7
an example of ________ is glucose or lactose.
carbohydrate
Long chains of amino acids are found in
proteins
steroids are an example of
lipids
What conditions affects the fuction of enzymes?
ph
heat
enzyme concentration
A substance on which an enzyme acts is called a(n)_______________
substrate
When placed in the same container, oil and water do not mix because
water is polar and oil is nonpolar
When humans sweat, water releases heat through___________________
evaporation
A substance that is composed of only one type of atom is called a(n)
element
__________________ is an attraction between differnet substances
adhesion
What organic molecules are classified as carbohydrates?
sugars
At room temperature ________________ fats are usually liquids.
unsaturated
The bond formed when two atoms share a pair of electrons is called a(n)
covalent bond
What is not an example of a lipid?
starch
An example of nucleic acid
DNA and RNA
What are ending materials in a chemical reaction?
products
What can be saturated and unsaturated?
lipids
What has the ability to change or move matter?
energy