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SAT Subject Test: Biology

Subjects : sat, science, biology
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 four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






2. A structure in animal cells containing centrioles from which the spindle fibers develop






3. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






4. The portion of the embryonic seed plant below the point of attachment of the coytledon; form the root






5. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






6. The inner part of the adrenal gland that secretes adrenalin






7. Describes cells that have a double set of chromosomes in homologous pairs (2n)






8. A hoofed animal






9. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






10. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






11. A fat-digesting hormone






12. The sac in the ovary in which the egg develops






13. A tract of nerve fibers connecting the two cerebral hemispheres






14. An endocrine gland located in the neck that produces thyroxin






15. The study of form and structure






16. The dorsal part of the hip girdle






17. A cell that divides to form two secondary spermatocytes






18. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






19. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






20. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs






21. An offspring that is heterozygous for one or more gene pairs






22. Semen






23. The inner layer of an organ surrounded by the cortex






24. The part of the male reproductive organ (the stamen) that produces and stores pollen






25. The recycling of nitrogen from decaying organism for use in future generations






26. One-thousandth of a millimeter; a unit of microscopic length






27. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






28. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






29. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






30. Functional urinary tubules responsible for excretion in the kidney of vertebrates






31. A mature ovary






32. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






33. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






34. The phylum to which segmented worms belong






35. The part of the neuron that transmits impulses to the cell body






36. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






37. The class of free-living flatworms






38. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






39. An enlargement of the thyroid gland due to lack of iodine






40. An anucleate red blood cell that contains hemoglobin






41. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






42. The physical appearance or makeup of an individual - as opposed to its genetic makeup






43. A hormone produced by the Islets of Langerhans in the pancreas






44. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






45. Undifferentiated tissue in the stem of a plant that aids growth in width






46. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






47. Cytoplasmic bodies within a plant cell that are often pigmented






48. The part of the flower that bears the female gametophyte






49. The part of the flower that produces pollen






50. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte