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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. Disease causing






2. The process of forming eggs and sperm cells in the reproductive organs.






3. The number of organisms in a given community - can be above or below the carrying capacity.






4. Is weaker than ionic - covalent - disulfide - or double bonds.






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






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






7. The transfer of electrons.






8. 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.






9. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






10. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






11. The phyla composed of segmented worms.






12. 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).






13. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






14. Inorganic phosphate






15. Super-class of vertebrae including organisms with no jaws.






16. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






17. The phyla of sponges.






18. Engages in both passive and active transport.






19. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






20. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






21. Cleave strands of DNA segments at certain sites.






22. Is a substance that changes the speed of a reaction without being affected itself.






23. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






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






25. Is the sugar that lactase acts upon.






26. The class composed of birds.






27. Stood upright before there was an increase in brain size.






28. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






29. Is a phylum that contains jellyfish - hydra - etc.






30. 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.






31. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






32. Is a special protein that acts as a catalyst for organic reactions.






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






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






35. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






36. Contain one celled eukaryotes such as algae and protozoa.






37. A hydrogen bond involves the ________________ and can be easily broken.






38. Some enzymes contain a __________ component that is essential to their functions.






39. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






40. High temperatures






41. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






42. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






43. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






44. Anabolism






45. Decomposition of living matter for consumption.






46. Is found in the root cap and is responsible for quick growth in the roots.






47. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






48. Most fossils of Hominids are from continents other than...






49. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






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