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






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






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






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






5. The animal version of starch. An insoluble polysaccharide containing branched amylose chaings. (chain length is much greater than starch and there are more branches)






6. Phenyalanine - Tryptophan - Tyrosine






7. Insoluble polysaccharides made by plants that are formed stricly from glucose (alpha form).






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






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






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






11. The bond between the hydroxyl group of one nucleotide and the phosphate group of another.






12. A cluster in the nucleus of ribosomal RNA genes - ribosomal proteins - and the RNAs they produce: it is the site of mass ribosome production






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






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






15. 5- carbon sugar - adenine - and a tri - phosphate group






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






17. Mechanically attach the cytoskeleton of a cell to the cytoskeletons of other cells or to the extracellular matrix. Common in tissues experiencing mechanical stress - eg muscle and skin epithelium






18. Cysteine - Methionine - Proline






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






20. Responsible for moving organelles within a cell - also facilitate cell movement






21. 1 joule = 0.239 calories






22. Two simple sugars joined together






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






24. Glycoprotein that attaches the ECM to the plasma membrane






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






26. Cytosine - Uracile - Thymine






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






28. 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.






29. The exact sequence of amino acids specified by DNA






30. 7 pass transmembrane protein in bacteria that carries out photosynthesis






31. 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






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






33. Archaebacteria that live in extermely hot environments - such as hydrothermal vents under the ocean






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






35. 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.






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






37. Manner in which macromolecules are broken down -- water is separated into H and OH






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






39. Anchor epithelial cells to a basement membrane






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






41. In prokaryotes - most of the genetic material lies in a single circular molecule of DNA that typically resides near the cetner of the cell. In eukaryotes - DNA is contained in the nucleus - which is surrounded by the nuclear envelope.






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






43. 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






44. Alanine - Valine - Leucine - Isoleucine






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






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






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






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






49. Proteins with short chains of sugars attached to them; in eukaryotic cells they are important membrane proteins that allow cell - cell recognition and interaction






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







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