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Biology SAT Subject Test Test

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5 Written Questions

5 Matching Questions

  1. autonomic nervous system
  2. nephron
  3. photosynthesis
  4. mesophyll
  5. photic zone
  1. a Tiny, tubule structures responsible for the filtering of blood in the kidneys of vertebrates.
  2. b The internal tissue of a leaf between the epidermal cells; specialized for photosynthesis. Contains the palisade and spongy layer.
  3. c Literally, zone with light. The photic zone is part of the marine pelagic zone and extends to 600 feet below the surface of the ocean. Photosynthetic plankton as well as bony fish, sharks, and whales inhabit this zone.
  4. d The involuntary half of the peripheral nervous system. The autonomic nervous system is in two antagonistic parts: the sympathetic and parasympathetic nervous systems. Their interactions control smooth and cardiac muscle, glands, and organs and processes such as heartbeat, the movements of the digestive tract, and the contraction of the bladder.
  5. e The process by which plants and other autotrophic organisms convert light energy into organic materials, such as glucose.

5 Multiple Choice Questions

  1. The study of the interactions and relationships of populations with each other and their abiotic environments.
  2. Part of the electron transport chain. A process occurring in the mitochondria that results in the formation of ATP from the flow of electrons across the inner membrane to bind with oxygen.
  3. Organisms that consume waste products and dead organic material and constitute part of the food web, which also includes producers and consumers. Also called saprophytes. Decomposers liberate inorganic elements such as nitrogen and carbon and allow those elements to move back into their respective chemical cycles. Examples of decomposers are bacteria and fungi.
  4. The organ system that filters blood and removes nitrogenous wastes from the body in the form of urea or uric acid. In humans, the two kidneys are the vital organs of blood filtration. In annelids, nephridia fill the filtering role; Malpighian tubules do the same in arthropods. In humans, other important structures of the system are the ureters, the urinary bladder, and the urethra.
  5. The progression of plant life and attendant animal life in a given geographic location, from pioneer plant to climax community.

5 True/False Questions

  1. pancreasInorganic molecules required by the body to carry out life processes. Important minerals are iron, a necessary component of hemoglobin; iodine, which is essential for making thyroid hormone; and calcium, which is required by the bones and for many cellular processes.


  2. peristalsisThe rolling motion of smooth muscle that moves food along the alimentary canal. Includes the passage from the esophagus to the stomach, the churning action of the stomach, and the passage through the small intestine.


  3. codominanceA phenomenon in which two alleles of the same gene are fully expressed in the phenotype when both are present in a heterozygote. Blood type is an example of codominance.


  4. synapseThe gap between two neurons, spanning the space between the axon of one and the dendrites of the other. In order to pass an impulse across a synapse, neurons must release neurotransmitters.


  5. insulinHormone secreted by the pancreas that reduces blood sugar levels. A lack of insulin can result in diabetes.


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