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. Alanine - Valine - Leucine - Isoleucine






2. Glycoprotein that attaches the ECM to the plasma membrane






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






4. Glycine - Serine - Threonine - Asparagine - Glutamine






5. The manner in which all macromolecules are assembled -- water is a product of the reaction






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






7. Level of protein structure that involves the association of two more more separate polypeptide chains (the individual chains are referred to as subunits)






8. A network of integrins that connects the actin filaments of one cell with those of neighboring cells or with the extra cellular matrix






9. Methane - producing archaebacteria - one of the most primitive archaebacteria that are alive today






10. A carrier protein that simultaneously moves one molecule in as it moves another out






11. Most common atoms found in biological molecules






12. A cellular structure that aids in the assembly of microtubules; lacking in cells of plants and fungi






13. Adenine --- Thymine (DNA) - Adenine --- Uracil (RNA) - Guanine --- Cytosine






14. Proteins that are anchored in and pass through the plasma membrane; attached to the cytoskeleton on the interior and to the ECM on the exterior






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






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






17. Biological process in which a some single celled prokaryotes collect intracellular water with a contractile vacuole and then pump it out






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






19. 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)






20. A structure that some fully expanded plant cells produce; provides very strong structural support






21. Gram positive bacteria have a think - single - layered cell wall that retains the dye used in Gram - staining. Penicillin only works on gram - positive bacteria.






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






23. Two simple sugars joined together






24. 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.






25. Small single - celled organisms that lack a definite nucleus and distinct interior compartments; they are encased within a rigid cell wall. Two main groups are archaebactera and bacteria






26. 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






27. Anchor epithelial cells to a basement membrane






28. 7 pass transmembrane protein in bacteria that carries out photosynthesis






29. Components of cytoskeleton






30. 1 joule = 0.239 calories






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






32. A combination of secondary structure bonding that forms characteristic patterns within protein strucure - such as the alpha - helix and the beta - pleated sheet






33. Simplest starch which is a long unbranching chain of glucose molecules






34. Chlorophyll containing bacteria that played an important role in increasing the concentration of oxygen






35. A common feature of porin proteins; beta sheets that forma characteristic motif where the sheets form a barrel - like structure






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






37. 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






38. The bond between two amino acids. Non - rotational because it has partial double - bond characteristics






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






40. The connection beteween two plasma membranes of plant cells






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






42. The unfolding of a protein caused by a shift in pH - ion concentration - or temperature.






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






44. 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.






45. The exact sequence of amino acids specified by DNA






46. The sugar in RNA contains an extra hydroxyl group and RNA uses uracil instead of thymine






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






48. The matrix of glycoproteins that animal cells deposit outside the plasma membrane which provide support - strength - and resilience






49. The bond between two sugar molecules






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






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