Test your basic knowledge |

MCAT Biology 3

Subjects : mcat, science
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. Protein that plays a major role in vesicle formation during receptor mediated endocytosis; forms a coated pit on the plasma membrane






2. Two simple sugars joined together






3. Function section of a protein that is able to fold independently of the other sections - encoded by exons (functional sections of a gene)






4. Adenine and Guanine






5. Cytosine - Uracile - Thymine






6. A special motor protein that moves along the microtubule toward the negative end; responsible for rentrograde axoplasmic transport






7. A special motor protien that moves along the microtubule toward its positive end; in most cells this movement is from the center to the periphery - in the axon it is anterograde transport






8. In eukaryotes - found extracellularly and involved with tissue recognition - eg ABO blood group markers






9. Ancient prokaryotes that survive in extreme anaerobic conditions - such as deap sea vents; they lack peptidoglycan in their cell walls






10. The most stable and durable element of cytoskeletal structure; includes vimentin - keratin - and neurofilaments






11. Long - threadlike structures protruding from the surface of a cell that are used for locomotion






12. A sticky substance that acts as a glue between the primary cell walls of plant cells






13. The second major group of prokaryotes that have very strong cell walls and are photosynthetic






14. A short - branched polysaccharide with short - linear amylose branches that are typically 20-30 subunits






15. Glutamic acid - Aspartic acid - Histidine - Lysine - Argenine






16. Term for the beta - alpha - beta motif that is found at the core of nuceotide binding sites






17. The DNA found in cells which transmits hereditary information from one generation to the next; in prokaryotes it is a single naked circle of DNA; in eukaryotes it is a single strand of DNA complexed with protein






18. Phenyalanine - Tryptophan - Tyrosine






19. Alanine - Valine - Leucine - Isoleucine






20. Large (relative to pyrimidines) double ringed molecules that are found in both DNA and RNA






21. Anchor epithelial cells to a basement membrane






22. Level of protein structure that is formed by the hydrogen bonds between the polar side groups of the main chain






23. They connect the plasma membranes of adjacent cells in a sheet - preventing molecules from leaking between the cells.






24. A semi - fluid matrix that fills the interior of the cell






25. (CH2O)n - n = number of carbon atoms






26. Protein found in RBCs that cause their characteristic biconclave shape; connects proteins in the plasma membrane with actin in the cytoskeleton






27. Cholesterol receptors lack tails and cannot be taken up by cells; stays in the bloodstream and coats arteries






28. Eukaryotic cell's internal protein scaffold which provides structural support and is extremely important for organizing the cell's activites; a dynamic system that is constantly forming and disassembling






29. Organelles found in plants and algae that perform photosynthesis and act as storage units; they all arise from the division of themselves






30. 1. All organisms are composed of one or more cells 2. Cells are the smallest living things - the basic units of organization of all organmisms 3. Cells arise only by division of a previously existing cell






31. A glucose ring formed with the hydroxyl group in the opposite plane of the methanol group






32. Catalysis (enzymes) - Defense/recognition (immune and hormonal systems) - Transport (eg hemoglobin) - Support (eg collagen) - Motion (actin and myosin) - Regulation (hormones) - Storage (eg bound calcium and iron)






33. Consist of a central carbon bound to an amino group - a carboxylic acid - a hydrogen atom - and an R group






34. A modified form of cellulose with a nitrogen group added to the glucose units; structural building material found in arthropods and cell walls of many fungi.






35. Composed of connexons; creates a channel that connects the cytoplasm of two cells






36. A three carbon alcohol in which each carbon is attached to a hydroxyl group






37. Energy rich molecules that consist only of carbon and hydrogen






38. A type of anchoring junction that connects the cytoskeletons of adjacent cells






39. Cysteine - Methionine - Proline






40. Glycerol attached to a phosphate group and two fatty acid chains






41. The inward movement of one molecule is coupled with the outward movement of another (across the cell membrane)






42. A type of intermediate filament found in epithelial cells






43. Destroys gram - positive bacteria by interfering with peptidoglycan's ability to cross - link the peptides which hold together the carbohydrates that make up the cell wall; water floods bacterial cell and causes it to burst






44. A form of endocytosis where an animal cell engulfs liquid matter






45. Simple sugars are turned into disaccharides so they can be transported without being metabolized (typically in plants). The enzymes that can break the bond and utilize the sugar are typically present only where the glucose is to be used.






46. Not soluble in water - the more unsaturated the lower the MP - energy rich (more than twice that of carbohydrates) - animals produce saturated while most plants produce unsaturated






47. A protein cross - linked carbohydrate that is a key compound in the cell walls of most modern prokaryotes (bacteria)






48. 1 joule = 0.239 calories






49. Glycoproteins that forms a complex web that forms a protective layer of the surface of animal cells






50. The exact sequence of amino acids specified by DNA







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