Test your basic knowledge |

MCAT Biology 2

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. The contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery






2. A large polysaccharide composed of many glucose monomers linked into cable - like fibrils that provide structural support in plant cell walls. Contains B- linkages.Animals cannot digest the B- linkages of this molecule.






3. A nucleotide found in muscle cells and important in metabolism






4. All of the types and relative amounts of proteins that are made in a particular cell at a particular time and under specific conditions






5. The transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.






6. A hormone secreted by the small intestine (duodenum) in response to low pH (e.g. - from stomach acid). It promotes the release of bicarbonate from the pancreas to act as a buffer.






7. Strand of Actin. Each actin has an active site that can interact with Myosin. Active sites are covered by tropomyosin strands - which are held in place by Troponin.






8. The organelle where ribosomes are made - synthesized and partially assembled - located in the nucleus






9. In the umbilical cord - carries blood and nutrients from mom to baby.






10. The thin endometrium layer of the uterus that does not shed and is responsible for forming a new functional layer after menstruation ends






11. The exterior protective or supporting structure or shell of many animals (especially invertebrates) including bony or horny parts such as nails or scales or hoofs






12. The reduced form of NAD+ (nicotinamide adenine dinucleotide). This is the most common electron carrier in cellular respiration.






13. Growth - stimulating hormone produced by the anterior lobe of the pituitary gland






14. The junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron






15. Storage lipids. Function is to store energy and can be fat in bodies of animals. Consists of glycerol molecule to 3 fatty acids attached to a three carbon backbone. May also function to provide thermal insulation and padding to an organism.






16. White blood cells - or WBC - form in the bone marrow and are part of the body's nonspecific defenses and the immune system






17. Hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells






18. Parasite that cannot multiply unless it invades a specific host cell and instructs its genetic and metabolic machinery to make an release quantities of new viruses






19. The regular fluctuation - within a 24- hour period - from high to low points of certain bodily functions and behavior; sleep wakefulness cycle and body temperature






20. A specific configuration of atoms commonly attached to the carbon skeletons of organic molecules and usually involved in chemical reactions.






21. The maximum amount of air a person can expel from the lungs after a maximum inspiration. It is equal to the inspiratory reserve volume plus the tidal volume plus the expiratory reserve volume.






22. A physiological sphincter that briefly slows down food before it enters the stomach . it also acts to prevent stomach contents from regurgitating into the esophagus - thus protecting the esophageal mucosa from the corrosive effect of the stomach acid






23. The endocrine system's most influential gland. Under the influence of the hypothalamus - the pituitary regulates growth and controls other endocrine glands






24. Hormone released by the hypothalamus that controls the release of thyroid - stimulating hormone from the anterior pituitary






25. All multicellular and unicellular nonbacteria organisms. Is bounded by a cell membrane and contains cytoplasm. cytoplasm contains organellessuspended in a semifluid mediumcalled cytosol. The genetic material consists of linear strands of DNA organize






26. Endocrine cells in the islets of Langerhans of the pancreas. They synthesize and secrete the hormone INSULIN - which lowers glucose levels in the blood






27. Sequence of nucleotides on a gene that gets transcribed and translated






28. A thin layer of cells that line the interior surface of the blood vessels - forming an interface between circulating blood in the lumen and the rest of the vessel wall. Simple squamous epithelium.






29. The structure that attaches most epithelia to underlying tissue; consists of carbohydrates and proteins secreted by the epithelia and the underlying connective tissue.






30. A substance produced by the liver that breaks up fat particles.






31. A flap of cartilage that covers the windpipe while swallowing






32. Comes in at a site other than active site but alters shape of enzyme so it can no longer bind reactants






33. For proteins - a process in which a protein unravels and loses its native conformation - thereby becoming biologically inactive. For DNA - the separation of the two strands of the double helix. Denaturation occurs under extreme conditions of pH - sal






34. Cells found in gastric glands that secrete hydrochloric acid (for hydrolysis of ingested food) and gastric intrinsic factor (for absorption of vitamin B-12).






35. A muscle that draws a part toward the median line






36. One of the main pancreatic proteases; it is activated (from chymotrypsinogen) by trypsin.






37. The sensory and motor neurons that connect the CNS to the rest of the body






38. The small artery that carries blood away from the capillaries of the glomerulus.






39. Organic compound whose carbon skeleton is composed of 2 or more 5- carbon isoprene structural units. It is formed by joining the tail of one isporene structural unit to the head of another. Includes Vitamin A.






40. A type of lipid characterized by a carbon skeleton consisting of four rings with various functional groups attached.






41. The band of the sarcomere that extends the full length of the thick filament. The A band includes regions of thick and thin filament overlap - as well as a region of thick filament only. A bands alternate with I bands to give skeletal and cardiac mus






42. Bone marrow that is yellow with fat; found at the ends of long bones in adults






43. Two tiny structures located in the cytoplasm near the nuclear envelope. They direct the seperation of chromosomes during cell division.






44. An organelle containing its own DNA and ribosomes within a eukaryotic cell






45. The cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart






46. Synthesised from ATP by adenylyl cyclase located on the inner side of the plasma membrane. Adenylyl cyclase is activated by a range of signaling molecules through the activation of adenylyl cyclase stimulatory G (Gs)- protein - coupled receptors and






47. Pertaining to substances that don't contain carbon; a substance that is produced from the breakdown of PC and is the leading cause of fatigue in working muscles






48. A group of bioactive - hormone - like chemicals derived from fatty acids that have a wide variety of biological effects including roles in inflammation - platelet aggregation - vascular smooth muscle dilation and constriction - cell growth - protecti






49. Adaptive immune response directed at antigenic components of the persons own body






50. Small organelles filled with enzymes; one function is to break down lipids - carbohydrates - and proteins from food particles; may also break down old cell parts. enzymes are maximally effective at a pH of 5 and they fuse with endocytic vacuoles to b







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