Test your basic knowledge |

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 specialized structure that controls osmotic pressure by removing water from the cell






2. Genetic blending; each allele exerts some influence on the phenotype






3. A fat or oil






4. A lateral region of the forebrain






5. The orderly process by which one biotic community replaces another until a climax community is established






6. A lymph tubule located in the villus that absorbs fatty acids






7. An organ that stores bile






8. The part of the body of an animal that is between the neck or head and the abdomen






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






10. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body






11. A reproductive cell that is capable of developing directly into an adult






12. In mammals - a flap of tissue above the glottis; it folds back over the glottis in swallowing to close the air passages of the lungs; contains elastic cartilage






13. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






14. A fat-digesting hormone






15. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA






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






17. The haploid - sexual stage in the life cycle of plants






18. Any cell capable of ingesting another cell






19. The elimination of metabolic waster matter






20. An enzyme from the pancreas that digests proteins in the small intestine






21. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






22. The thin-walled anterior chamber of the heart (also called the auricle)






23. A large class of arthropods - including crabs and lobsters






24. A form of anaerobic respiration found in yeast and bacteria






25. A cell resulting from the fusion of gametes






26. The navel






27. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development






28. One of a class of organic compounds that is composed of many amino acids; contains C - H - O and N






29. The coiled part of the sperm duct - adjacent to the testes in mammals






30. The pigment in rod cells that causes light sensitivity






31. A mutation involving the addition or loss of nucleotides






32. An organic catalyst and protein






33. The part of the flower that produces pollen






34. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






35. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA






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






37. 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)






38. The biome located between the polar region and the tiaga






39. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






40. An organism that possesses both the male and the female reproductive organs






41. The pairing of homologous chromosomes during meiosis






42. A stage of embryonic development in which the embryo consists of a hollow ball of cells






43. Describes an individual that has the same gene for the same trait on each homologous chromosome






44. The outermost surface of an organism






45. A nerve cell






46. A plant that has a single cotyledon or seed-leaf






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






48. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






49. A plastid containing chlorophyll






50. The area of medulla that regulates the rate of breathing