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






2. An organism that possesses one or more whiplike appendages called flagella






3. Changes in genes that are inherited






4. Refers to protective covering






5. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






6. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






7. Semen






8. Agent that induces mutations; typically carcinogenic






9. A network of capillaries in the Bowman's capsules of the kidney






10. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells






11. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






12. A mucus-secreting membrane






13. A type of anaerobic respiration found in fungi - bacteria and human muscle cells






14. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






15. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






16. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






17. The science of classification of living things






18. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






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






20. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






21. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






22. The veins that carry blood from the digestive organs to the liver






23. A remnant of follicle after ovulation that secretes the hormone progesterone






24. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






25. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






26. Structures in the testes that produce sperm and semen






27. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






28. The process of breaking down large organic molecules into smaller ones






29. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system






30. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






31. A marine arthropod - now extinct - that lived during the Paleozoic era






32. A nerve cell






33. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome






34. 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)






35. The system of naming an organism by its genus and species name






36. The genetic makeup of an organism without regard to physical appearance






37. The liquid part of blood






38. Organism that consumes food from outside itself instead of producing it






39. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes






40. A transmitter substance released from the axons of nerve cells at the synapse






41. Part of the nephron in the kidney; involved in excretion

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42. Nonliving - as in the physical environment






43. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






44. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






45. 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






46. The hindbrain region that controls equilibrium and muscular coordination






47. Blood protein that is transformed to fibrin upon clotting






48. Unicellular organism with simple cell structure






49. An organ that stores bile






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