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