Study guides, Class notes & Summaries

Organic Nutrient An organism that contains carbon and hydrogen Inorganic Nutrient An organism that does not contan carbon and hydrogen Phototroph An organism that gains energy from light through photosynthesis Heterotroph An organism that must obtain carbon in an organic form - they are dependent on other life forms Chemotroph An organism that gains energy from chemical compounds - this means they eat things. Harvesting energy from the things they eat. Autotroph An organism that g...

The threshold of a neuron is the: d. total amount of neurotransmitter it takes to cause an action potential. An neuronal circuit in which one presynaptic neuron stimulates a group of neurons, each of which then synapses with a common postsynaptic cell is a: d. parallel after-discharge circuit. Following injury to a peripheral neuron, chromatolysis occurs, which is: b. breakup of the Nissl bodies. Cerebrospinal fluid normally circulates in the: c. subarachnoid space. The part of a spi...

The pituitary hormone that stimulates the maturation of the follicle in the ovary at the beginning of the menstrual cycle. FSH If a cell becomes more negative inside (going from -50mV to -70mV), it has: hyperpolarized This ion is present at relatively higher concentrations outside a neuron that currently has a resting potential Sodium Luteinizing hormone (LH) stimulates: interstitial cells to produce androgens An increase in parathyroid hormone levels in the blood would: cause an inc...

Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed: A) lacteals B) lymph follicles C) lymph nodes D) lymphatics C) lymph nodes Which of the following would NOT be classified as a lymphoid organ? A) pancreas B) peyer's patches of the intestine C) spleen D) tonsils A) pancreas The thymus is most active during A) middle age B) old age C) childhood D) fetal development C) childhood Which of the following is NOT a part of the lymphatic system? A)...

Derived traits of plants that distinguish them from other members of Eukarya - Photosynthesis -spores walled with sporopollenin -Vascular structures How to tell if an organism is a plant or green algae based on characteristics? Plant- Spores walled with sporopollenin - complex vascular structures - Differentiation between the root and shoot system Green algea- can bu unicellular - more mobility underwater Challenges of the terrestrial environment for organisms - desiccation (water...

BIO 242 EXAM 3 QUESTIONS AND ANSWERS 100% CORRECT Which lines of defense would be considered nonspecific? - Answer- First line of defense Second line of defense Differentiate between components of first and second line defense - Answer- FIRST:Physical and Chemical barriers SECOND: phagocytosis, inflammation, fever, antimicrobial proteins FLOD: lysozome - Answer- is secreted in tears in saliva What human body region is protected by fatty acids, acidic pH, lactic acid, and tough cell barr...

Week 1 Bios 242 Questions And Answers With Verified Solutions

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Bio 242 Exam 1 Questions And Answers With Verified Solutions

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