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






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






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






4. What phylum are snakes in?






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






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






7. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






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






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






10. Channels is cell membranes that carry water between cells.






11. The phylum of insects (bees).






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






13. Is the waxy protective outer coating of leaves.






14. Is the organelle where cellular reproductive processes occur.






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






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






17. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






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






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






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






21. The transfer of electrons.






22. Plants and animals obtain usable nitrogen






23. Is found on the stem between nodes.






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






25. 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






26. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






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






28. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






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






30. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






31. 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.






32. Disease causing






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






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






35. Refers to the birthrate of a population.






36. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






37. Has loosely packed cells that allow for gas and moisture exchange.






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






39. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






40. Veins in the leaf and are also distributed throughout the stem






41. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






42. The class composed of birds.






43. 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).






44. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






45. Inorganic phosphate






46. 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).






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






48. Some energy is lost as heat and becomes unusable.






49. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






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