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