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AP Biology

Subjects : science, ap, biology
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule.

2. The cellular process that uses special enzymes to fix incorrectly paired nucleotides.

3. A route of electron flow during the light reactions of photosynthesis that involves both photosystems and produces ATP - NADPH - and oxygen. The net electron flow is from water to NADP+.

4. A genetic disorder that occurs in people with two copies of a certain recessive allele; characterized by an excessive secretion of mucus and consequent vulnerability to infection; fatal if untreated.

5. A chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation-reduction reaction

6. A phenomenon in which one gene alters the expression of another gene that is independently inherited

7. A diagram used in the study of inheritance to show the results of random fertilization.

8. A sequence of electron carrier molecules (membrane proteins) that shuttle electrons during the redox reactions that release energy used to make ATP.

9. A route of electron flow during the light reactions of photosynthesis that involves only photosystem I and that produces ATP but not NADPH or oxygen

10. A taxonomic category above the kingdom level. The three domains are Archaea - Bacteria - and Eukarya.

11. The cellular secretion of macromolecules by the fusion of vesicles with the plasma membrane.

12. An extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch.

13. A type of endocytosis involving large - particulate substances.

14. A team of enzymes that hydrolyze DNA and RNA into their component nucleotides

15. The multicellular haploid form in organisms undergoing alternation of generations that mitotically produces haploid gametes that unite and grow into the sporophyte generation.

16. The entry compound for the Krebs cycle in cellular respiration; formed from a fragment of pyruvate attached to a coenzyme.

17. A point mutation; the replacement of one nucleotide and its partner in the complementary DNA strand by another pair of nucleotides.

18. The synthesis of a polypeptide using the genetic information encoded in an mRNA molecule. There is a change of 'language' from nucleotides to amino acids

19. The second growth face of the cell cycle consisting of the portion of interphase after DNA synthesis occurs

20. Complete complement of organisms genes; genetic material

21. A negatively charged ion

22. A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found only in the domains Bacteria and Archaea.

23. A specific receptor site on some part of an enzyme molecule remote from the active site.

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

25. One of two families of nitrogenous bases found in nucleotides. Adenine (A) and guanine (G) are purines.

26. A type of inheritance in which F1 hybrids have an appearance that is intermediate between the phenotypes of the parental varieties

27. A membranous sac formed by phagocytosis.

28. A protein covalently attached to a carbohydrate.

29. A family tree describing the occurrence of heritable characters in parents and offspring across as many generations as possible.

30. Dissolving agent of a solution

31. The fifth and final subphase of mitosis in which daughter nuclei are forming and cytokenisis actually begins

32. The amount of heat that must be absorbed lost for one gram of a substance to change its temperature by one degree

33. Provide cytoplasmic channels between adjacent animal cells

34. The conversion of a normal animal cell to a cancerous cell.

35. An element indispensable for life but required in extremely minimum amounts

36. A type of yellow-green accessory photosynthetic pigment that transfers energy to chlorophyll a.

37. A heritable feature in a population that varies continuously as a result of environmental influences and the additive effect of two or more genes (polygenic inheritance).

38. The parent individuals from which offspring are derived in studies of inheritance; P stands for parental.

39. Composed of nine sets of triplet microtubule arrange in a ring

40. ATP can power active transport by transferring a phosphate group from ATP to the transport protein. This may induce a conformation change in the transport proteins translocating the solute across the membrane

41. One of several atomic forms of an element each containing different number of neutrons and different in atomic mass

42. Nuclear division process; prophase - prometaphase - metaphase - anaphase - and telophse

43. Attached to outside of ER or nuclear envelope- proteins that are destined for insertion into membranes or packaging certain organelles (ex: lysosome)

44. The control of water balance in organisms living in hypertonic - hypotonic - or terrestrial environments.

45. Sex cells (haploid cells; egg or sperm) unite to form a diploid zygote

46. A quantum - or discrete amount - of light energy.

47. The splitting of glucose into pyruvate. Glycolysis is the one metabolic pathway that occurs in all living cells - serving as the starting point for fermentation or aerobic respiration

48. A glycoprotein in the extracellular matrix of animal cells that forms strong fibers - found extensively in connective tissue and bone; the most abundant protein in the animal kingdom.

49. A specialized molecule sharing the reaction center with the chlorophyll a molecule; it accepts an electron from the chlorophyll a molecule.

50. The entire contents of the cell - exclusive of the nucleus - and bounded by the plasma membrane.