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






2. Actin (tension bearing elements ) muscle contraction






3. A chromosomal condition in which a particular cell has only one copy of a chromosome - instead of the normal two; the cell is said to be monosomic for that chromosome.






4. A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.






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






6. 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.






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






8. A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A) - cytosine (C) - guanine (G) - and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruse






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






10. The steps in photosynthesis that occur on the thylakoid membranes of the chloroplast and that convert solar energy to the chemical energy of ATP and NADPH - evolving oxygen in the process.






11. An organic molecule consisting only of carbon and hydrogen.






12. A cluster of several membrane proteins found in the mitochondrial crista (and bacterial plasma membrane) that function in chemiosmosis with adjacent electron transport chains - using the energy of a hydrogen ion concentration gradient to make ATP. Pr






13. Rain - snow - or fog that is more acidic than pH 5.6.






14. A chemical cycle involving eight steps that completes the metabolic breakdown of glucose molecules to carbon dioxide; occurs within the mitochondrion; the second major stage in cellular respiration.






15. A type of RNA - synthesized from DNA - that attaches to ribosomes in the cytoplasm and specifies the primary structure of a protein.






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






17. 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






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






19. Unit - a region of a DNA molecule that is transcribed into an RNA molecule






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






21. A chromosomal condition in which a particular cell has an extra copy of one chromosome - instead of the normal two; the cell is said to be trisomic for that chromosome.






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






23. A loosely arranged photosynthetic cell located between the bundle sheath and the leaf surface.






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






25. Sites of cellular respiration the catbolic process that generates ATP by extracting energy from sugars - fats + other fuels w/ oxygens help






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






27. A polymer of up to over a thousand monosaccharides - formed by dehydration reactions.






28. 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






29. 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.






30. The loss of electrons from a substance involved in a redox reaction.






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






32. 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.






33. An extensive membranous network in eukaryotic cells - continuous with the outer nuclear membrane and composed of ribosome-studded (rough) and ribosome-free (smooth) regions.






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






35. Sythesis of secretory proteins (glycoproteins) specialized cells secrete proteins produced by rough ER ribosomes and membrane production






36. The potential energy stored in the form of an electrochemical gradient - generated by the pumping of hydrogen ions across biological membranes during chemiosmosis.






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






38. A regularity protein whose concentration fluctuates cyclically






39. A spontaneous chemical reaction in which there is a net release of free energy






40. In a heterozygote - the allele that is fully expressed in the phenotype.






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






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






43. A specialized region on the centromere that links each sister chromatid to the mitotic spindle






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






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






46. Modification of RNA before it leaves the nucleus - a process unique to eukaryotes.






47. Centralized region that joins the two sister chromatids






48. Many ion channels function as gated channels these channels open or close depending on the presence or absence of a chemical or physical stimulus






49. A substance that consists of acid and base forms in a solution and that minimizes changes in pH when extraneous acids or bases are added to the solution.






50. A dense region of DNA in a prokaryotic cell.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests