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