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Test your basic knowledge |
CLEP Biology: Organic Chemistry
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Study First
Subjects
:
clep
,
science
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The six elements that make up 99% of the matter in living systems.
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Bond Polarity
Amino Acids
Fats
2. Biological compounds containing and amino group and a carboxylic acid group.with one of 20 side chains.
Element
Hemoglobin
Amino Acids
Evolution
3. A collection of organisms whose members interact with each other within an ecosystem.
Macromolecules
Molecular formula
Biological Community
Nucleoside
4. A group of at least two covalently bonded atoms
Molecule
Neutron
Fats
Ecosystem
5. Very large molecules with molecular masses as high as several million atomic mass units. Polymers of small similar molecules. Includes Polysaccharides - fats - and proteins.
Electron
Atom
Amino Acids
Macromolecules
6. The tendency of an atom in a bond to attract shared bonding electrons.
Causation
Covalent Bond
Biological Community
Electronegativity
7. The act or process of causing something to happen -
Nucleus
Biological Community
Fats
Causation
8. A statistical comparison of two variables. Does not necessarily mean that one causes the other.
Electron
Amino Acids
Specific Heat
Correlation
9. A liquid which dissolves another substance without any change in its chemical composition.
Electron
Solvent
Hypothesis
Correlation
10. An atom's center of mass and center of positive charge.
Electron
Condensation Reaction
Ionic Bond
Nucleus
11. A process in which a substance or substances are converted into one or more new substances with different propertied and composition.
Hypothesis
Proteins
Macromolecules
Chemical reaction
12. A chemical bond formed by the attraction between positive and negative ions.
Molecular Polarity
Causation
Ionic Bond
Polarity
13. Have ths same molecular formul;a but different chemical and physical properties. The atoms are bonded in a different order. Some hydrocarbons are an example of Isomers.
Nucleoside
Scientific Method
Isomers
Ionic Bond
14. The fundamental unit of chemical matter.
Bond Polarity
Amino Acids
Polymers
Atom
15. A bond whose electrons are shared between atoms.
Less Than
Isomers
Covalent Bond
Causation
16. A specific combination of bonded atoms that reacts in a characteristic and predictable way. Examples are Ethers and Alchohols which are represented by a generic molecule. Includes Alchohol - Ether - Aldehyde - Ketone - Carboxylic Acid - and Ester. -
Element
Functional Group
Biology
Specific Heat
17. A form of matter tha cannot be decomposed into simpler substance by ordinary chemical methods.
Element
Monosaccharides
Nucleotides
Molecular formula
18. The attractive force between molecules in one phase and different molecules in another phase.
Macromolecules
Bond Polarity
Polymers
Adhesion
19. The main oxygen transport protein in muscle. Made of a single chain.
Condensation Reaction
Myoglobin
Polarity
Element
20. Macromolecules made from polypeptides. Two type are globular and fibrose.
Proteins
Fats
Proton
Energy - Support - and Transport
21. The attractive force between similar molecules in the same phase.
Cohesion
Molecular formula
Specific Heat
Electronegativity
22. An attractive forve between tow or more atoms or ions that holds them together.
Chemical Bond
Isomers
Solvent
Less Than
23. A compound containing a nitrogenous base covalently bonded to a pentose sugar
Compound
Nucleoside
Myoglobin
Biology
24. Where two molecules are joined by the elimination of a smaller molecule.
Condensation Reaction
Energy - Support - and Transport
Atom
Amino Acids
25. All organisms in an area together with the physical environment which they inhabit.
Condensation Reaction
Ecosystem
Bond Polarity
Biological Community
26. The main oxygen carrying protein in blood. Globular.
Ion
Nucleus
Hemoglobin
Correlation
27. A condition or state in which a substance has an uneven distribution of electron density. Enables compounds to dissolve and enables hydrogen bonding.
Nucleotides
Polymers
Polarity
Ecosystem
28. A negatively charged subatomic particle located outside the nucleus.
Biological Community
Proteins
Electron
Myoglobin
29. A weak to moderate attractive force between a hydrogen atom bonded to oxygen - nitrogen - or fluorine - and an oxygen - nitrogen or fluorine atom on another molecule. Usually represented by dotted lines.
Hydrogen Bond
Functional Group
Myoglobin
Nucleotides
30. A chemical reaction produces energy when the difference between the reactants and the products is ____________zero.
Less Than
Nucleotides
Atom
Solvent
31. Occurs when there is?
Fats
Molecular Polarity
Polymers
Bond Polarity
32. An uncharged subatomic particle located in the nucleus.
Macromolecules
Neutron
Hemoglobin
Bond Polarity
33. Tentative - untested explanation of a scientific issue.
Biology
Hypothesis
Cohesion
Bond Polarity
34. The amount of heat needed to raise the temperature of a 1 gram sample of a substance by 1 degree Celsius.
Condensation Reaction
Proteins
Ion
Specific Heat
35. A compound that contains carbon.
Specific Heat
Myoglobin
Biological Community
Organic Compound
36. Three roles of Macromolecules.
Energy - Support - and Transport
Covalent Bond
Evolution
Condensation Reaction
37. Gradual process by which something changes into a different and usually more complex form.
Chemical reaction
Scientific Method
Correlation
Evolution
38. One of the most abundant carbohydrates providing either energy storage or structural support. Polymers of 10 or more simple sugars - composed of thousands of monomers and up to 100M molecular mass.. Includes Cellulose in plants and Chitin animals wit
Biological Community
Ionic Bond
Polysaccharides
Chemical Bond
39. The study of life and living organisms. A problem solving process.
Isomers
Biology
Correlation
Surface Tension
40. The main oxygen transport protein in blood. Made of two alpha chains and two beta chains.
Nucleotides
Hemoglobin
Biology
Correlation
41. Atoms of the same element with different number of neutrons in the nuclei.
Adhesion
Isotopes
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Bond Polarity
42. Occurs when one atom in a bond is more electronegative than the other.
Isotopes
Bond Polarity
Nucleus
Functional Group
43. The energy needed to increase the surface area of a liquid by a given amount.
Surface Tension
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Energy - Support - and Transport
Tissue
44. Used by organisms to produce energy - Most common form is glucose. Also includes Fructose and - less commonly - Ribose - and Deoxyribose.
Monosaccharides
Compound
Fats
Electron
45. State problem - refine the problem - propose hypothesis - make observations -
Nucleoside
Atom
Amino Acids
Scientific Method
46. Organ systems are made of organs which are made of _____________ which are made of cells.
Compound
Tissue
Electronegativity
Chemical Bond
47. An expression indicating the number of each type of atom in one molecule of a substance.
Amino Acids
Electron
Molecular formula
Condensation Reaction
48. A charged species that results from the gain or loss of electrons from a neutral atom or molecule.
Covalent Bond
Evolution
Amino Acids
Ion
49. Group of Macromolecules that Includes Triglycerides and Phospholipids.
Causation
Fats
Electron
Evolution
50. A compound containing a nitrogenous base covalently bonded to a pentose sugar and a phosphate group. Classified by the pentose sugar they contain - Ribose or Deoxyribose.
Solvent
Chemical Bond
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Nucleotides