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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. An organ centrally involved in the human digestive system






2. A ring-shaped muscle that is capable of closing a tubular opening by constriction






3. The process by which water and dissolved substances pass through a membrane






4. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis






5. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate






6. The process by which carbohydrates are formed through chemical energy; found in bacteria






7. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






8. Structures in the testes that produce sperm and semen






9. An antipathogenic substance (e.g. - penicillin)






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






11. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






12. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






13. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






14. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






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






16. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






17. Nonliving - as in the physical environment






18. A nerve cell






19. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






20. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






21. A fluid-filled sensory apparatus that aids balance and hearing






22. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






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






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






25. A form of asexual reproduction in which the egg develops in the absence of sperm






26. A plant that lives on another plant mensalistically






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






28. In plants - an area of undifferentiated tissue covered by embryonic leaves






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






30. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






31. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






32. A network or mesh of fibrils - fibers or filaments






33. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






34. The part of the flower that produces pollen






35. The male gonads that produce sperm and male hormones






36. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones






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






38. Describes cells (gametes) that have half the chromosome number typical of the species






39. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum






40. Protein threads that form in the blood during clotting






41. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






42. A jellyfish






43. The place of attachment of the mitotic fiber to the chromosome






44. A grouping of neuron cell bodies that acts as a coordinating center






45. The organelle that provides mechanical support and carries out motility functions for the cell






46. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






47. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections






48. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






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






50. Occurs when certain traits are determined by genes on sex chromosomes