Homeostasis
This process is the regulation of internal conditions to maintain stability despite changes in the environment.
Homeostasis
True or False: Passive transport requires energy.
False
A ________ is a mixture of solute and solvent.
Solution
Feedback mechanisms evolved to help organisms maintain ________.
Homeostasis
Name and explain two types of endocytosis, and provide an example of each.
Whatever you said, if correct!
To maintain homeostasis, would you:
A) Sweat?
B) Shiver?
C) Sweat and Shiver?
D) Eat a hotdog?
C
This type of passive transport involves water moving across a membrane.
What is osmosis?
type of passive transport
To make a solution, you need to combine these two components.
Solute + Solvent
This type of feedback amplifies a change in a system.
Positive feedback
I let water pass through, but only water, not stuff. What am I?
Osmosis
Define “stimulus” in the context of homeostasis.
any detectable change in an organism's internal or external environment that triggers a physiological response to maintain a stable state; essentially, it's a signal or change that prompts the body to react and adjust to maintain equilibrium around a set point.
Name one key difference between simple diffusion and facilitated diffusion.
extra - What is simple diffusion does not require a protein channel, while facilitated diffusion does?
simple diffusion does not require a protein channel to move molecules across a membrane
True or False: In a solution, the solute dissolves the solvent.
False
Give an example of a negative feedback mechanism in the human body.
EX: Temperature Regulation
I move things without using power, from high to low in just an hour. What am I?
Passive Transport
True or False: A response is how an organism reacts to a stimulus.
True
Identify two types of active transport mechanisms.
primary active transport and secondary active transport
Define concentration in the when with/ within a solution.
measure of the amount of solute that has been dissolved in a given amount of solvent or solution
What is the primary purpose of feedback mechanisms in living organisms?
Regulates internal processes
I swallow big bites or take tiny sips, bringing things into the cell on trips. What am I?
Endocytosis
Explain how homeostasis helps organisms survive in extreme environments.
it acts as a buffer against environmental stressors, enabling organisms to adapt and persist in challenging habitats.
Compare passive transport to active transport regarding energy requirements.
Passive transport does not require energy to move substances across a cell membrane, while active transport requires energy
Explain how a concentration gradient works
particles naturally move from an area with a high concentration of something to an area with a low concentration
Explain the difference between positive and negative feedback in terms of system stability.
positive feedback amplifies changes - negative feedback reduces them
I’m the process of moving out trash, using energy in a quick flash. What am I?
EXOCYTOSIS