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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. The pituitary gland.






2. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






3. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






4. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






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






6. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






7. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






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






9. Includes all living and nonliving components of the Earth to support living things.






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






11. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






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






13. Is the organelle where cellular reproductive processes occur.






14. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






15. 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.






16. 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.






17. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






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






19. 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.






20. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






21. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






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






23. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






24. Contains optic lobes - controls sight.






25. The phyla of sponges.






26. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






27. Is the waxy protective outer coating of leaves.






28. All store energy within their chemical bonds.






29. The phylum of insects (bees).






30. The phyla of round worms.






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






32. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






33. 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






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






35. Refers to the birthrate of a population.






36. Subsets below the kingdom level






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






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






39. 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






40. Engages in both passive and active transport.






41. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






42. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






43. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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






45. The phyla composed of segmented worms.






46. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






47. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






48. Respiratory organs within insects






49. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






50. 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