FIRST PUBLISH OCTOBER 2024
bio 116 exam 5 practice questions and
answers
interstitial fluid - Ans:✔✔-fluid between cells
What is a common way to increase surface area without increasing body size? - Ans:✔✔-folding,
branching
4 main types of Animal Tissues - Ans:✔✔-epithelial, connective, muscle, nervous
epithelial tissue - Ans:✔✔-- covers & lines body
- cells are tightly joined to each other (tight junctions)
- simple or stratified
- secrete mucus
connective tissue - Ans:✔✔-- bind & support other tissues (cartilage)
- fibroblasts, macrophages (blood)
- loose connective tissue bonds epithelial layers to tissues (holds organs in place - adipose, blood)
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muscle tissue - Ans:✔✔-smooth, striated, cardiac
striated muscle - Ans:✔✔-voluntary movement
smooth muscle - Ans:✔✔-involuntary movement (digestive tract)
cardiac muscle - Ans:✔✔-contraction of heart
(intercalated disk allows for heart muscle contraction)
sarcomere - Ans:✔✔-a structural unit of a myofibril in striated muscle, consisting of a dark band and the
nearer half of each adjacent pale band.
nervous tissue - Ans:✔✔-neurons: transmit impulses
glial: support cells
What happens with fight or flight response? - Ans:✔✔-Multiple organ systems & hormone signals
involved:
Heart rate increase, Digestion slows, Increases blood flow to muscles, Mouth gets dry, Bladder relaxes
sympathetic vs. parasympathetic nervous system - Ans:✔✔-The sympathetic nervous system activates
the fight or flight response during a threat or perceived danger, and the parasympathetic nervous system
restores the body to a state of calm
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, ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
Regulator - Ans:✔✔-internal mechanisms to maintain internal setpoints despite external changes
(animals whose temp is always at setpoint)
Conformer - Ans:✔✔-internal conditions can vary with environmental changes (animals whose temp can
change based on environmental change)
How do trees survive freezing temperatures? - Ans:✔✔-- Increases fluidity of membranes
- Add sugars to xylem & phloem - act as antifreeze
Heat Exchange - Ans:✔✔-1. radiation
2. evaporation (panting, sweating)
3. convection (warm air goes up, cold air goes down)
4. conduction (surfaces)
countercurrent exchange - Ans:✔✔-the opposite flow of adjacent fluids that maximizes transfer rates; for
example, blood in the gills flows in the opposite direction in which water passes over the gills,
maximizing oxygen uptake and carbon dioxide loss.
What are the appropriate steps to address this response? - Ans:✔✔-Change → sensor → integrator →
effector → response
thermoregulation - Ans:✔✔-
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