Test your basic knowledge |

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. Organizing the structures and activities of cells






2. The formation of ATP by directly transferring a phosphate group to ADP from an intermediate substrate in catabolism.






3. The spontaneous tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.






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






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






6. A characteristic






7. A Y-shaped region on a replicating DNA molecule where new strands are growing.






8. (1) An atom's central core - containing protons and neutrons. (2) The chromosome-containing organelle of a eukaryotic cell. (3) A cluster of neurons.






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






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. A tiny membranous sac in a cell's cytoplasm carrying molecules produced by the cell.






12. An enzyme that links together the growing chain of ribonucleotides during transcription.






13. In comparing two solutions - the one with a lower solute concentration.






14. A double-stranded - helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.






15. The protein shell that encloses a viral genome. It may be rod-shaped - polyhedral - or more complete in shape.






16. The entire spectrum of radiation ranging in wavelength from less than a nanometer to more than a kilometer.






17. The process of generating ATP from ADP and phosphate by means of a proton-motive force generated by the thylakoid membrane of the chloroplast during the light reactions of photosynthesis.






18. An iron-containing protein - a component of electron transport chains in mitochondria and chloroplasts






19. The chlorophyll a molecule and the primary electron acceptor in a photosystem; they trigger the light reactions of photosynthesis. The chlorophyll donates an electron - excited by light energy - to the primary electron acceptor - which passes an elec






20. A membranous sac in a mature plant cell with diverse roles in reproduction - growth - and development.






21. 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






22. 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.






23. A homogeneous mixture of two or more substance (liquid)






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






25. The attraction between different kinds of molecules






26. Sites where the replication of a DNA molecule begins.






27. The reactant on which an enzyme works






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






29. A two-stage type of cell division in sexually reproducing organisms that results in cells with half the chromosome number of the original cell.






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






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






32. Suspended in cytosol which will function in cytosol (ex:enzymes)






33. In cellular metabolism - the use of energy released from an exergonic reaction to drive an endergonic reaction.






34. One of two families of nitrogenous bases found in nucleotides. Cytosine (C) - thymine (T) - and uracil (U) are pyrimidines.






35. A cell containing two sets of chromosomes (2n) - one set inherited from each parent.






36. One of several organic compounds with the same molecular formula but different structures and therefore different properties. The three types are structural - geometric and enantiomers.






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






38. An enzyme that untwists the double helix of DNA at the replication forks.






39. That portion of the endoplasmic reticulum studded with ribosomes.






40. 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






41. The form of native DNA - referring to its two adjacent polynucleotide strands wound into a spiral shape.






42. A life cycle in which there is both a multicellular diploid form - the sporophyte - and a multicellular haploid form - the gametophyte; characteristic of plants.






43. A plant that uses the Calvin cycle for the initial steps that incorporate CO2 into organic material - forming a three-carbon compound as the first stable intermediate.






44. Penetrate the hydrophobic core of the lipid bilayer - often completely spanning the membrane (as transmembrane proteins).






45. A profile of the relative performance of different wavelengths of light.






46. Lacking oxygen; referring to an organism - environment - or cellular process that lacks oxygen and may be poisoned by it.






47. A membranous sac formed by phagocytosis.






48. A fatty acid in which all carbons in the hydrocarbon tail are connected by single bonds - thus maximizing the number of hydrogen atoms that can attach to the carbon skeleton.






49. The principle whereby every energy transfer or transformation increases the entropy of the universe. Ordered forms of energy are at least partly converted to heat - and in spontaneous reactions - the free energy of the system also decreases.






50. 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