Bio 242 Q&A Exam Bundle

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) ...

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 tha...

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. ...

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 dep...

Taxonomy The field of biology that is involved in naming, describing, and classifying organisms, both extinct species and extant species International Code of Zoological Nomenclature (ICZN) The formal rules used by scientists in naming to promote stability and universality in the scientific names...

gastrocnemius origin Femoral condyle gastrocnemius insertion Calcaneous Gastrocnemius action plantar flexion soleus origin (2) Head and proximal shaft of fibula, postmedial shaft of tibia soleus insertion Calcaneous soleus action plantar flexion sartorius action (3) Hip flexion & e...

Tropic hormone TSH, ACTH, FSH, and LH are all tropic hormones ("messenger hormones"- regulate the secretory action of other endocrine glands) Endocrine gland (Innie) pituitary, thyroid, parathyroid, adrenal, and pineal glands Exocrine Gland (Outie) More numerous than endocrine glands, secret...

First line of defense Skin - layer of epidermal cells is constantly dividing and cells are move outward where they die and dry out Form a sort of armor. Follicle cells have associated oil (fatty acids) producing glands and sweat glands produce salty water There are also antimicrobial peptides pro...

Liquid media Water-based solutions that do not solidify at temperatures above freezing and flow freely (Broths, milks, infusions) Semisolid media -Exhibits a clot-like consistency at room temperature -Contains enough gelatin or agar to thicken but not produce a firm surface -Used to determine ...

Microorganisms are classified in various taxonomic categories: they can be prokaryotic (bacteria and archaea); or eukaryotic (animals, plants, protists, fungi). While virus, viroids, and other infectious agents such as prions are also microscopic, they are not considered living organisms because ...