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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. Tentative - untested explanation of a scientific issue.
Scientific Method
Hypothesis
Electron
Atom
2. A charged species that results from the gain or loss of electrons from a neutral atom or molecule.
Ion
Condensation Reaction
Proteins
Adhesion
3. Occurs when one atom in a bond is more electronegative than the other.
Ion
Bond Polarity
Monosaccharides
Molecular formula
4. 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
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Cohesion
Ionic Bond
5. 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.
Functional Group
Hydrogen Bond
Polymers
Nucleotides
6. A group of at least two covalently bonded atoms
Molecule
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Evolution
Molecular formula
7. Macromolecules made from polypeptides. Two type are globular and fibrose.
Proteins
Nucleus
Ionic Bond
Electronegativity
8. The amount of heat needed to raise the temperature of a 1 gram sample of a substance by 1 degree Celsius.
Correlation
Specific Heat
Fats
Compound
9. Three roles of Macromolecules.
Polysaccharides
Hypothesis
Energy - Support - and Transport
Isomers
10. Gradual process by which something changes into a different and usually more complex form.
Fats
Polymers
Isotopes
Evolution
11. Basic biological molecules join to form larger biological __________.
Macromolecules
Polymers
Polarity
Scientific Method
12. A process in which a substance or substances are converted into one or more new substances with different propertied and composition.
Polymers
Chemical reaction
Nucleoside
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
13. The act or process of causing something to happen -
Polysaccharides
Electron
Chemical reaction
Causation
14. A collection of organisms whose members interact with each other within an ecosystem.
Biological Community
Organic Compound
Molecular formula
Condensation Reaction
15. An attractive forve between tow or more atoms or ions that holds them together.
Adhesion
Surface Tension
Polysaccharides
Chemical Bond
16. Used by organisms to produce energy - Most common form is glucose. Also includes Fructose and - less commonly - Ribose - and Deoxyribose.
Monosaccharides
Energy - Support - and Transport
Covalent Bond
Functional Group
17. An uncharged subatomic particle located in the nucleus.
Molecular Polarity
Cohesion
Neutron
Polymers
18. Where two molecules are joined by the elimination of a smaller molecule.
Hemoglobin
Macromolecules
Molecular formula
Condensation Reaction
19. The main oxygen transport protein in blood. Made of two alpha chains and two beta chains.
Correlation
Compound
Nucleus
Hemoglobin
20. The main oxygen carrying protein in blood. Globular.
Functional Group
Isomers
Hemoglobin
Hydrogen Bond
21. All organisms in an area together with the physical environment which they inhabit.
Fats
Nucleus
Ecosystem
Isomers
22. A chemical bond formed by the attraction between positive and negative ions.
Ionic Bond
Energy - Support - and Transport
Nucleotides
Cohesion
23. State problem - refine the problem - propose hypothesis - make observations -
Amino Acids
Less Than
Proton
Scientific Method
24. Group of Macromolecules that Includes Triglycerides and Phospholipids.
Tissue
Fats
Energy - Support - and Transport
Atom
25. The main oxygen transport protein in muscle. Made of a single chain.
Ionic Bond
Myoglobin
Condensation Reaction
Polysaccharides
26. A compound that contains carbon.
Nucleotides
Specific Heat
Energy - Support - and Transport
Organic Compound
27. Occurs when there is?
Molecular Polarity
Compound
Scientific Method
Polysaccharides
28. 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.
Surface Tension
Isomers
Solvent
Less Than
29. A condition or state in which a substance has an uneven distribution of electron density. Enables compounds to dissolve and enables hydrogen bonding.
Hemoglobin
Nucleoside
Polarity
Hypothesis
30. A liquid which dissolves another substance without any change in its chemical composition.
Electronegativity
Macromolecules
Solvent
Organic Compound
31. Biological compounds containing and amino group and a carboxylic acid group.with one of 20 side chains.
Amino Acids
Evolution
Biological Community
Isomers
32. A substance composed of two or more elements combined in fixed proportions.
Molecular formula
Compound
Atom
Organic Compound
33. A chemical reaction produces energy when the difference between the reactants and the products is ____________zero.
Biology
Fats
Less Than
Adhesion
34. An atom's center of mass and center of positive charge.
Nucleus
Chemical Bond
Surface Tension
Ionic Bond
35. The tendency of an atom in a bond to attract shared bonding electrons.
Covalent Bond
Ecosystem
Electronegativity
Polysaccharides
36. 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.
Surface Tension
Causation
Polysaccharides
Nucleotides
37. The attractive force between similar molecules in the same phase.
Correlation
Cohesion
Ecosystem
Biological Community
38. 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
Scientific Method
Ionic Bond
Macromolecules
39. A compound containing a nitrogenous base covalently bonded to a pentose sugar
Myoglobin
Molecular formula
Ion
Nucleoside
40. The six elements that make up 99% of the matter in living systems.
Monosaccharides
Cohesion
Hydrogen - Oxygen - Carbon - Nitrogen - Calcium - Phosphorus
Hemoglobin
41. A positively charged subatomic particle located in the nucleus.
Proton
Scientific Method
Tissue
Correlation
42. Atoms of the same element with different number of neutrons in the nuclei.
Hemoglobin
Evolution
Isotopes
Proton
43. An expression indicating the number of each type of atom in one molecule of a substance.
Molecular formula
Hydrogen Bond
Functional Group
Fats
44. A bond whose electrons are shared between atoms.
Nucleoside
Amino Acids
Covalent Bond
Surface Tension
45. The attractive force between molecules in one phase and different molecules in another phase.
Molecular Polarity
Tissue
Ionic Bond
Adhesion
46. Organ systems are made of organs which are made of _____________ which are made of cells.
Tissue
Nucleotides
Hemoglobin
Polymers
47. A form of matter tha cannot be decomposed into simpler substance by ordinary chemical methods.
Electron
Chemical Bond
Compound
Element
48. 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. -
Proton
Macromolecules
Functional Group
Chemical Bond
49. A negatively charged subatomic particle located outside the nucleus.
Polysaccharides
Less Than
Electron
Neutron
50. A statistical comparison of two variables. Does not necessarily mean that one causes the other.
Correlation
Condensation Reaction
Ionic Bond
Hemoglobin