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






2. 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






3. A solution in which water is the solvent






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






5. In comparing two solutions - referring to the one with a greater solute concentration.






6. An already existing RNA chain bound to template DNA to which DNA nucleotides are added during DNA synthesis.






7. Are not embedded in the lipid bilayer at all. Instead - the are loosely bound to the surface of the protein - often connected to integral proteins






8. A heritable feature.






9. The most abundant type of RNA - which together with proteins - forms the structure of ribosomes. Ribosomes coordinate the sequential coupling of tRNA molecules to mRNA codons.






10. A membranous sac that helps move excess water out of the cell.






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






12. A double sugar - consisting of two monosaccharides joined by dehydration synthesis.






13. Reproduction of cells






14. An instrument that measures the proportions of light of different wavelengths absorbed and transmitted by a pigment solution.






15. A cell creates a vesicle around a droplet of extracellular fluid






16. Special transport proteins that generate the voltage gradient across a membrane an example is the Na+-K+ pump restores the electrochemical gradient not only by the active transport of Na+ and K+ setting up a concentration gradien but because it pumps






17. Cancerous tumor that is invasive enough to impair function of one or more organs






18. An adenine-containing nucleoside triphosphate that releases free energy when its phosphate bonds are hydrolyzed. This energy is used to drive endergonic reactions in cells.






19. A method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway.






20. The production of ATP by noncyclic electron flow.






21. 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.






22. Phase of cell cycle that includes mitosis and cytokenisis






23. A chemical or physical agent that interacts with DNA and causes a mutation.






24. Period when cell cycle when cell is not dividing- cell metabolic activity is high - chromsomes and organelles are duplicated and cell size may increase. 90% of cell cycle






25. The protective structure at each end of a eukaryotic chromosome. Specifically - the tandemly repetitive DNA at the end of the chromosome's DNA molecule. See also repetitive DNA.






26. Double membrane perforated by pores which regulate entry and exit of certain macromolecules and particles






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






28. A dense object lying along the inside of the nuclear envelope in female mammalian cells - representing an inactivated X chromosome.






29. A giant molecule formed by the joining of smaller molecules - usually by a condensation reaction. Polysaccharides - proteins - and nucleic acids are macromolecules.






30. An organic molecule with a carbonyl group located at the end of the carbon skeleton.






31. The reactant on which an enzyme works






32. The electron donor in a redox reaction.






33. An accident of meiosis or mitosis - in which the members of a pair of homologous chromosomes or sister chromatids fail to move apart properly.






34. 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






35. A mutation involving the addition of one or more nucleotide pairs to a gene.






36. A measure of the intensity of heat in degrees reflecting molecules average kinetic energy






37. A functional group important in energy transfer.






38. A flattened membrane sac inside the chloroplast - used to convert light energy to chemical energy.






39. A long molecule consisting of many similar or identical monomers linked together.






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






41. A method of organizing the chromosomes of a cell in relation to number - size - and type.






42. The substance in which animal tissue cells are embedded consisting of protein and polysaccharides.






43. Complete complement of organisms genes; genetic material






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






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






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






47. A substance that reduces the hydrogen ion concentration of a solution






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






49. Span the membrane 1. channel proteins which have a hydrophilic channel that certain molecules or ions can use as a tunnel through the membrane (aquaporins facilitate the passage of water through the membrane) 2. carrier proteins bind to molecules and






50. Dissolving agent of a solution