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