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 path molecules travel when an imbalance between separated molecule concentrations exists






2. The maintenance of internal body temperature within a tolerable range






3. Receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart






4. Provides support for your body and connects all its parts. Specialized tissue includes bone - cartilage - tendons - ligaments - adipose tissue - and blood.






5. The hollow muscular organ located behind the sternum and between the lungs






6. Amount of air that can be forcefully exhaled after a normal tidal volume exhalation






7. The process by which the positive and negative ions of an ionic solid become surrounded by solvent molecules






8. (Vh and Vl) variable N- terminal portions of the L and H chains that cause the differences between antibodies and combine to make up the antigen - binding region of the antibody.






9. Head of the sperm that releases hydrolytic enzymes allowing it to enter the egg






10. (RAS) or the renin - angiotensin - aldosterone system (RAAS) - hormone system regulates blood pressure and water balance. When blood pressure is low - kidneys secrete renin. Renin stimulates production of angiotensin causing blood vessels to constric






11. The spiny sublayer just below the stratum ganulosum contains cells that create an immune response to protect the body against foreign bodies that get through the first three outer sublayers of skin






12. Two lobes joined by a central mass in the throat - inferior to the larynx - produces two major hormones.






13. A regulatory protein that is a component of the thin filament. When calcium ions (Ca2+) bind to troponin - it undergoes a change in shape; this conformational change moves tropomyosin away from myosin - binding sites on actin molecules - and muscle c






14. The elastic tension of living muscles - arteries - etc. that facilitate response to stimuli






15. Glands of the endocrine system that release hormones into the bloodstream






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






17. A pair of endocrine glands just above the kidneys. the adrenals secrete the hormones epinephrine (adrenaline) and norepinephrine (noradrenaline) - which help to arouse the body in times of stress.






18. 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.






19. The inner germ layer that develops into the lining of the digestive and respiratory systems






20. Chromosomes that have the same sequence of genes - that have the same structured - and that pair during meisosis






21. Has both a hydrophilic (polar) phosphoric acid and a hydrophobic (non - polar) fatty acid region. Hydrophilic regions are found on the outside of the membrane and hydrophobic regions are found on the interiorof the membrane. Structure allows for sele






22. Source: Adrenal cortex - Target Tissues: Kidneys - Function: Raise blood volume - bp - and salts in blood - Stimulus to release: low bp - blood volume - or low salt concentration - Regulated: Negative feedback - ANF hypothalamus hierarchy






23. An enzyme which contains a region to which small regulatory molecules may bind in addition to and separate from the substrate binding site - thereby affecting catalytic activity






24. A chemical process in which a compound is broken down and changed into other compounds by taking up the elements of water. Breaks apart most macromolecules of living cells.






25. Protein molecules that assist the proper folding of other proteins; they work by keeping the new polypeptide segregated from bad influences in the cytoplasmic environment while it folds spontaneously






26. Hormone secreted by the hypothalamus that can suppress secretion of hormones by the anterior pituitary






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






28. Stores bile produced by the liver until it is needed in the duodenum






29. A temporary complex formed when an enzyme binds to its substrate molecules






30. Any of a large group of nitrogenous organic compounds that are essential constituents of living cells. Built from a chain of amino acids linked polypeptide bonds.






31. A genetic disorder of metabolism - A human genetic defect that results in the failure to metabolize phenylalanine.






32. Layer of bone tissue having many small spaces and found just inside the layer of compact bone.






33. Building blocks of lipids. - chains of carbon atoms bonded to hydrogen atoms. Typically there is an even number of carbons with the maximum in humans being 24. Can be saturated or unsaturated.






34. The antagonist of insulin. Its release is stimulated by low blood glucose levels. It stimulates the liver - its primary target organ - to break down its glycogen stores to glucose and subsequently to release glucose to the blood.






35. Compounds made of a metal and nonmetal that are formed when acids and bases react






36. A protein present in muscle fibers that aids in contraction and makes up the majority of muscle fiber






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






38. Semifluid medium containing organelles.






39. Any cell in a multicellular organism except a sperm or egg cell.






40. (genetics) the organic process whereby the DNA sequence in a gene is copied into mRNA






41. Simplest starch which is a long unbranching chain of glucose molecules has the same alpha linkages as glycogen






42. Consists of layer of compact bone encloses in spongy bone at the ends of the long bones






43. The four chromatids in a pair of homologous chromosomes that come together as a result of synapsis during meiosis






44. A solid ball of cells that makes up an embryo; in humans - this stage occurs within four days of fertilization.






45. Located in the centrosome area - and are found in animal cells but not in plant cells.






46. Carries blood from the internal Jugular to the right side of the heart






47. Support sperm formation; development and maintenance of male secondary sex characteristics






48. The mucous membrane that lines the inner wall of the uterus






49. Serves the circulatory needs of the anterior pituitary. The release of anterior pituitary hormones is controlled by neurosecretions produced by neurons of the ventral hypothalamus.






50. Activated in the duodenum by enterokinase - which is produced in the cells lining the duodenum







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