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Biochem Test Prep
| Question | Answer |
|---|---|
| What is the smallest unit of matter? | Atoms |
| What makes up water molecules? | Hydrogen and oxygen |
| What type of atoms form when an atom loses its electrons? | Positive charged cation |
| Where are electrons located in the atom? | Outside the nucleus in electron shells |
| Where are protons and neutrons located in the atom? | In the nucleus |
| What are the charges of protons, neutrons, and electrons? | Protons=positive, neutrons=neutral, electrons=negative |
| What is a monosaccharide? | A simple sugar and monomer for carbs. |
| What is the most abundant compound in living things? | Water |
| How do enzymes affect reactions? | Catalysts that speed up reactions |
| When salt is dissolved in water, the water becomes a | |
| A covalent bond is formed when electrons are | Shared by atoms |
| What organic compound is the main source of energy for living things? | carbohydrates |
| What does an animal break down first when it runs out of food? | Stored fats |
| What does it break down after that one runs out?(organic compounds) | Lean muscle mass |
| What is the fit between a substrate and enzyme? (loose, tight, etc.) | tight |
| What organic molecule is part of an enzyme? | coenzyme |
| What are the subunits of proteins? | amino acids |
| Which property of an enzyme and its substrate is complementary? | Active site |
| What is the universal solvent? | Water |
| What are the characteristics of water due to its polarity? | Water attracts other molecules, gives high surface tension |
| Elements and ratio of carbs | carbon, hydrogen, oxygen 1:2:1 |
| Elements and ratio of lipids | Carbon, hydrogen, oxygen 1:2, very few |
| Elements and ratio of proteins | carbon, hydrogen, oxygen, no ratio |
| Elements and ratio of nucleic acid | carbon, nitrogen, hydrogen, oxygen, phosphorus, no ratio |
| Are lipids polar or nonpolar? | non-polar |
| Atom | the smallest unit of matter |
| Cohesion | water is attracted to water molecules |
| Adhesion | water is attracted to other substances |
| Monomer | a molecule that can be bonded to other identical molecules to form a polymer |
| Carbohydrate | Macromolecules that consist of oxygen, carbon, and hydrogen atoms that are used as a source of energy and cellular support. |
| Nucleic Acid | macro molecules that transmit and store genetic information |
| Covalent Bond | A type of chemical bond where two or more atoms share an electron pair |
| Enzyme | A biological catalyst that speeds up chemical reactions |
| Substrate | the surface of where a substance lives |
Created by:
lys.studystacks
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