Vocabulary
the tendency of the body to keep a relatively stable equilibrium, or balance, even if the conditions outside of the body change
Homeostasis
What is the basic unit of life?
The cell
Homeostasis is the process of returning back to _____
Normal
The what and why of an experiment.
The Purpose
A group of tissues that perform a specific function or group of functions
Organ
an answer to a testable question that describes what the scientist thinks will happen as an outcome of the scientific investigation
Hypothesis
What are the two types of cells
Prokaryotic cell: Single celled organism
Eukaryotic cell: Multicellular organism
When the body begins to overheat _____ is a process to cool itself down.
Sweating
The variable you measure in your experiment.
Dependent (responding) variable
Group of organs and tissues that all function together toward a single purpose
Organ system
a type of feedback loop that occurs when the product of a reaction leads to a decrease in that reaction.
Negative Feedback Loop
A group of cells form what?
Tissue
In our lab we preformed heavy exercises. What did our body do in order to return itself back to homeostasis?
Sweat, Breathe faster, Faster heart rate
What is the difference between qualitative and quantitative data?
Qualitative: Observable measurements (Color, smell, etc.)
Quantitative: Numerical data (Temperature, amount, weight, etc.)
What organ is responsible for breathing?
Lungs
membrane-bound structure that occurs as a functional, independent unit of life, or as the structural or fundamental unit in a biological tissue specialized to perform a particular function in multicellular organisms
Cell
What organelle converts CO2 and water to usable energy for a plant cell
Mitochondria
During pregnancy the birthing parent will release a hormone known as oxytocin that signals heavy contractions. This release continues until the baby is born. This is an example of ______
Positive feedback loop
What is the difference between accuracy and precision? Which is better?
Accuracy: How close multiple measurements of the same variable are to each other
Precision: How close a measurement of a variable is to the actual value
Neither, must strive for both within ethical terms
What organ system is responsible for sending messages and signals in the body?
The nervous system
a type of feedback loop that occurs when the product of a reaction leads to an increase in that reaction
Positive Feedback Loop
Which cells are not considered alive?
Homeostasis falls under which nervous system?
(Autonomic or Somatic)
Autonomic Nervous System (ANS): Responsible for involuntary messaging signals.
What are the two most important aspects of a procedure?
A procedure must be detailed and repeatable
What TWO main systems are responsible for regulating homeostasis?
Nervous System: Sending and relaying signals
Endocrine System: Releasing hormones