Lab Safety General
Is it okay to eat food, chew gum, or drink water during a lab?
NO!!!!!!!!!!!!!
Goggles are optional
NO!!!!!!!
Is this loop positive or negative and is it homeostasis?
Stepping outside on a hot day and sweating to cool yourself off.
Negative, Homeostasis
What is the stimulus for the following statement?
During the middle of winter you run outside for a snowball fight and almost immediately feel the cold and begin to shiver
Decreasing Temperature/Cold
A volcano spewing volcanic ash into the air
Geo & Atmo
True or False: Unless otherwise told it's okay to dispose of chemicals down the drain
True
True or False: If you wear glasses you don't need to wear goggles.
False
Is this loop positive or negative and is it homeostasis?
Insulin regulates the body's blood sugar. When the there is too much glucose in your bloodstream your pancreas secretes insulin to lower it to a nominal (normal) level.
Negative, homeostasis
What is the effector in this example of homeostasis
If your blood pressure increases baroreceptors tell your brain (the medula specifically) To send a signal to your heart to beat slower lowering blood flow.
Heart beating slower
Drinking water on a hot summer day
Hydro & Bio
When first entering a lab you should touch all equipment to familiarize yourself with it
NO!!!!!!!!!!!
If you splash chemicals on yourself or in your eyes what should you do?
Use the eyewash shower or emergency shower.
Is this loop positive or negative and is it homeostasis?
In the legendary movie the Lorax the Onclers greed leads him to deforest all of Thneedville. slowly at first but as time continues his greed leads him to cut down trees faster for more profit.
Positive, no homeostasis
What is the sensor in the following question?
Recessions are when a country's economy shrinks rapidly. In our modern day we can try to predict these using recession indicators. Once a recession is declared the government will try multiple economic reforms to heal the economy.
Recession indicators
A plant opening its stomata to receive carbon dioxide.
Bio & Atmo
When dissecting a specimen its proper to cut towards yourself for better control of the scalpel.
NO!!!!!!!!!!!
If you have left over chemicals what should you do with them?
Dispose of them
Is this loop positive or negative and is it homeostasis?
A Roth IRA is a savings account designed for retirement. It provides you with a large interest rate in exchange for taking a percentage of your money if you withdraw any before the age of 59 years old. While this money is in your account it will continue to grow due to compounding interest.
Positive, no homeostasis
What is Mr. Jones' favorite color?
Green
The water cycle includes these spheres?
ALL
What is the name of the box in the back of the class that we use to handle poisonous and volatile substances?
Fume Hood
If you are hurt during a lab what should you say to grab the instructors attention?
CODE ONE
Is this loop positive or negative and is it homeostasis?
Calcium is essential for bone health. When the body is low on calcium the parathyroid gland release PTH which signals for your bones to release calcium to be absorbed by the kidneys. If you have too much calcium your body thyroid gland releases calcitonin, which signals for the bones to store excess calcium.
Negative, homeostasis
What is the control center for most homeostatic mechanisms in the body?
Hypothalamus
Banded Iron Formations (BIFS) are the result of cyanobacteria consuming carbon dioxide and releasing free oxygen into the oceans they inhabit. This bonded with free floating iron atoms and created all sources of iron ore on this planet.
Bio & Hydro & Geo