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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. A substance composed of two or more elements combined in fixed proportions.
Compound
Hemoglobin
Macromolecules
Proton
2. A compound that contains carbon.
Condensation Reaction
Organic Compound
Polarity
Chemical Bond
3. State problem - refine the problem - propose hypothesis - make observations -
Scientific Method
Proton
Polysaccharides
Proteins
4. A charged species that results from the gain or loss of electrons from a neutral atom or molecule.
Condensation Reaction
Isotopes
Ion
Evolution
5. The main oxygen transport protein in muscle. Made of a single chain.
Myoglobin
Molecular Polarity
Biology
Electronegativity
6. An attractive forve between tow or more atoms or ions that holds them together.
Energy - Support - and Transport
Element
Chemical Bond
Isomers
7. Occurs when there is?
Molecule
Molecular Polarity
Polarity
Nucleoside
8. A collection of organisms whose members interact with each other within an ecosystem.
Molecular Polarity
Biological Community
Hydrogen Bond
Chemical reaction
9. A form of matter tha cannot be decomposed into simpler substance by ordinary chemical methods.
Element
Correlation
Biology
Cohesion
10. A process in which a substance or substances are converted into one or more new substances with different propertied and composition.
Hemoglobin
Electron
Organic Compound
Chemical reaction
11. Gradual process by which something changes into a different and usually more complex form.
Ionic Bond
Polysaccharides
Atom
Evolution
12. Three roles of Macromolecules.
Chemical reaction
Energy - Support - and Transport
Hemoglobin
Monosaccharides
13. Macromolecules made from polypeptides. Two type are globular and fibrose.
Proteins
Energy - Support - and Transport
Causation
Hypothesis
14. The act or process of causing something to happen -
Energy - Support - and Transport
Causation
Organic Compound
Specific Heat
15. The tendency of an atom in a bond to attract shared bonding electrons.
Electronegativity
Hydrogen Bond
Biology
Proton
16. A chemical bond formed by the attraction between positive and negative ions.
Fats
Ionic Bond
Polarity
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
17. The main oxygen transport protein in blood. Made of two alpha chains and two beta chains.
Nucleotides
Hemoglobin
Molecular formula
Electronegativity
18. Biological compounds containing and amino group and a carboxylic acid group.with one of 20 side chains.
Amino Acids
Molecule
Compound
Nucleoside
19. A negatively charged subatomic particle located outside the nucleus.
Element
Tissue
Electron
Isomers
20. 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.
Biology
Nucleotides
Nucleoside
Fats
21. A bond whose electrons are shared between atoms.
Polysaccharides
Molecule
Hemoglobin
Covalent Bond
22. An atom's center of mass and center of positive charge.
Causation
Amino Acids
Biological Community
Nucleus
23. Organ systems are made of organs which are made of _____________ which are made of cells.
Monosaccharides
Tissue
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Polysaccharides
24. A condition or state in which a substance has an uneven distribution of electron density. Enables compounds to dissolve and enables hydrogen bonding.
Nucleoside
Polarity
Hypothesis
Ion
25. Where two molecules are joined by the elimination of a smaller molecule.
Hydrogen Bond
Organic Compound
Causation
Condensation Reaction
26. The study of life and living organisms. A problem solving process.
Ecosystem
Neutron
Biology
Evolution
27. Occurs when one atom in a bond is more electronegative than the other.
Bond Polarity
Causation
Isomers
Ionic Bond
28. A group of at least two covalently bonded atoms
Molecule
Ionic Bond
Ion
Polarity
29. The six elements that make up 99% of the matter in living systems.
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Correlation
Molecule
Adhesion
30. The fundamental unit of chemical matter.
Less Than
Atom
Proton
Chemical reaction
31. An expression indicating the number of each type of atom in one molecule of a substance.
Ionic Bond
Neutron
Molecular formula
Biology
32. A chemical reaction produces energy when the difference between the reactants and the products is ____________zero.
Electronegativity
Adhesion
Molecular Polarity
Less Than
33. Used by organisms to produce energy - Most common form is glucose. Also includes Fructose and - less commonly - Ribose - and Deoxyribose.
Electronegativity
Monosaccharides
Organic Compound
Macromolecules
34. Very large molecules with molecular masses as high as several million atomic mass units. Polymers of small similar molecules. Includes Polysaccharides - fats - and proteins.
Tissue
Hemoglobin
Macromolecules
Organic Compound
35. A compound containing a nitrogenous base covalently bonded to a pentose sugar
Monosaccharides
Electron
Chemical Bond
Nucleoside
36. The amount of heat needed to raise the temperature of a 1 gram sample of a substance by 1 degree Celsius.
Solvent
Ionic Bond
Polysaccharides
Specific Heat
37. 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.
Hemoglobin
Polarity
Isomers
Bond Polarity
38. Basic biological molecules join to form larger biological __________.
Atom
Evolution
Polymers
Molecular Polarity
39. A positively charged subatomic particle located in the nucleus.
Less Than
Ion
Covalent Bond
Proton
40. 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. -
Hypothesis
Functional Group
Bond Polarity
Molecular formula
41. A statistical comparison of two variables. Does not necessarily mean that one causes the other.
Isomers
Surface Tension
Correlation
Macromolecules
42. 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
Polysaccharides
Proteins
Ionic Bond
Correlation
43. Atoms of the same element with different number of neutrons in the nuclei.
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Isotopes
Fats
Biological Community
44. 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.
Fats
Organic Compound
Hydrogen Bond
Polarity
45. Tentative - untested explanation of a scientific issue.
Proton
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Hypothesis
Myoglobin
46. The main oxygen carrying protein in blood. Globular.
Hemoglobin
Covalent Bond
Ionic Bond
Molecular Polarity
47. The attractive force between molecules in one phase and different molecules in another phase.
Adhesion
Molecular Polarity
Amino Acids
Ion
48. The energy needed to increase the surface area of a liquid by a given amount.
Solvent
Condensation Reaction
Myoglobin
Surface Tension
49. Group of Macromolecules that Includes Triglycerides and Phospholipids.
Fats
Hydrogen Bond
Functional Group
Element
50. An uncharged subatomic particle located in the nucleus.
Scientific Method
Nucleus
Neutron
Proton