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AP Biology

Subjects : science, ap, 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 loss of electrons from a substance involved in a redox reaction.






2. A short cellular appendage specialized for locomotion - formed from a core of nine outer doublet microtubules and two inner single microtubules ensheathed in an extension of plasma membrane.






3. Synthesis of lipids - phospholipids and steroid sex hormones-help detoxify drugs and poisons (liver cells) involves adding hydroxyl groups to drugs to make soluble and easier to flush from body






4. A covalent bond formed between two monosaccharides by a dehydration reaction.






5. Any cell in multicellular organism except an egg or sperm






6. A subatomic particle with single positive charge found in nucleus of an atom






7. The covalent bond between two amino acid units - formed by a dehydration reaction






8. Plants that produce offspring of the same variety when they self-pollinate.






9. Sites of photosynthesis. convert solar energy--> chemical energy by absorbing sunlight and using it to drive the synthesis of organic compounds from CO2 and H20






10. An organism that obtains organic food molecules without eating other organisms or substances derived from other organisms. Autotrophs use energy from the sun or from the oxidation of inorganic substances to make organic molecules from inorganic ones.






11. Center of manufacturing - warehousing - sorting - and shipping products are usually modified during their transit from the cis pole to the trans pole






12. The portion of a system's energy that can perform work when temperature is uniform throughout the system.






13. Containing oxygen; referring to an organism - environment - or cellular process that requires oxygen.






14. A protein covalently attached to a carbohydrate.






15. Having aversion to water tend to coalesce and form droplets of water






16. A measure of how difficult it is to stretch or break the surface of a liquid






17. A complex assembly that interacts with the ends of an RNA intron in splicing RNA - releasing the intron - and joining the two adjacent exons.






18. An organic compound with a carbonyl group of which the carbon atom is bonded to two other carbons.






19. The union of haploid gametes to produce a diploid zygote.






20. Having two identical alleles for a given trait.






21. Prokaryotes cell division . Each daughter cell receives a copy of the single parental chromosome






22. The scientific study of heredity and hereditary variation.






23. Splits a membrane along the middle of the phospholipid bilayer. When a freeze-fracture preparation is viewed with an electron microscope - protein particles are interspersed in a smooth matrix - supporting the fluid mosaic model.






24. One of two light-harvesting units of a chloroplast's thylakoid membrane; it uses the P680 reaction-center chlorophyll.






25. An increase or decrease in the density of a chemical substance in an area -->substances tend to move form where there are more concentrated to where they are less concentrated






26. A functional group consisting of a hydrogen atom joined to an oxygen atom by a polar covalent bond. Molecules possessing this group are soluble in water and are called alcohols.






27. The currently accepted model of cell membrane structure - which envisions the membrane as a mosaic of individually inserted protein molecules drifting laterally in a fluid bilayer of phospholipids.






28. 1. Transport of specific solutes into or out of cells. 2. Enzymatic activity - sometimes catalyzing one of a number of steps of a metabolic pathway 3. Signal transduction - relaying hormonal messages to the cell. 4. Cell-cell recognition - allowing o






29. The conversion of pyruvate to carbon dioxide and ethyl alcohol.






30. Offspring resulting from interbreeding of the hybrid F1 generation.






31. Dissolving agent of a solution






32. Reproduction of cells






33. A virus that infects bacteria; also called a phage. See phage.






34. An ion with a positive charge produced by the loss of one or more electrons






35. A type of inheritance in which the phenotypes of the heterozygote and dominant homozygote are indistinguishable.






36. Actively maintains the gradient of sodium ions (Na+) and potassium ions (K+) across the plasma membrane of animal cells . K+ concentration is low outside animal cell and high inside the cell. Na+ concentration is high outside an animal cell and low i






37. An organelle found only in plants and photosynthetic protists that absorbs sunlight and uses it to drive the synthesis of organic compounds from carbon dioxide and water.






38. A reaction in which two molecules become covalently bonded to each other through the loss of a small molecule - usually water; also called dehydration reaction.






39. A haploid cell such as an egg or sperm. Gametes unite during sexual reproduction to produce a diploid zygote.






40. An active transport mechanism in cell membranes that consumes ATP to force hydrogen ions out of a cell and - in the process - generates a membrane potential






41. The distance between crests of waves - such as those of the electromagnetic spectrum.






42. A protein that must be present in the extracellular environment for the growth and normal development of certain types of cells






43. The electrons in the outermost electron shell






44. Region where cells microtubules are initiated






45. Any factor that has a greater impact on a population as the population increases






46. The general term for the production of offspring with new combinations of traits inherited from the two parents.






47. A chemical process that lyses - or splits - molecules by the addition of water; an essential process in digestion.






48. Mendel's first law - stating that allele pairs separate during gamete formation - and then randomly re-form as pairs during the fusion of gametes at fertilization.






49. A netlike array of protein filaments that maintains the shape of the nucleus.






50. Substance consisting of two or more elements in a fixed ratio