Test your basic knowledge |

CLEP Biology

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. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






2. This is a carboxyl group and is the signature group found within organic acids.






3. What phylum are snakes in?






4. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






5. Enzymes are usually __________ to certain reactions.






6. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






7. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






8. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






9. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






10. Is the outermost of the three main layers of an embryo.






11. The size of a cell is limited by the ratio of its surface area to volume.






12. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






13. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






14. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






15. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






16. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






17. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






18. Is a kingdom that includes algae and protozoa.






19. Process of breaking down complex materials (foods) to form simpler substances and release energy.






20. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






21. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






22. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






23. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






24. Covalent bonds






25. Algae and Protozoa belong to the kingdom...






26. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






27. Is a phylum that contains sponges.






28. The total amount of genetic information available for a given species.






29. The role played by an organism in its food chain.






30. The large brain and upright posture of Homo Sapiens...






31. It secretes saliva which enters the digestive tract and aids the digestive process.






32. The destruction of gametes - (sex cells such as sperm and eggs).






33. Contains optic lobes - controls sight.






34. Are cells involved in immunity and are produced in bone marrow as stem cells.






35. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






36. Anabolism






37. Is a coenzyme required in the synthesis of collagen.






38. Absorb a photon of light and is found in the grana of the chloroplast.






39. Contains many genes and is a structure comprised of linear DNA and associated proteins.






40. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






41. The systematic search for individuals with a specific genotype in a delineated population.






42. The preservation of the integrity of genetic information from one generation to another.






43. Inorganic phosphate






44. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






45. Layer that will become the gut lining as well as some accessory structures.






46. Layer that will become the skin - some endocrine glands - and the nervous system.






47. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






48. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






49. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






50. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.