Lab Safety
When do you use a fire blanket?
Small fires
What 5 things must a graph contain?
Title, axis, interval, labels, scale
What function do carbs and lipids both perform, and what kinds of organisms do they perform this function in?
Long-term energy storage (lipids for animals) (carbs for plants)
What is the polarity of nucleic acids?
Polar
What bond holds together water molecules? What is the polarity of this bond?
Polar Covalent
How and when do you use a fire extinguisher?
Large fires, PASS
What do you use histograms for? Give an example
To show averages, a teacher wants to see the breakdown of her students' scores
What process uses carbohydrates to make energy?
Cellular respiration
What 4 elements do proteins and nucleic acids have to contain?
Carbon, Hydrogen, Oxygen, Nitrogen
A gummy bear is placed in plain water? What direction will the water move?
Inside, it will swell
How long do you rinse your skin/eyes if a chemical spills on/in them?
15 minutes
A scientist wants to see the effect of a drug on hair loss. What graph would be used?
Line graph
What elements do both carbs and lipids have to contain? How can you tell whether it is a carb or a lipid?
CHO, carbs exist in a 1:2:1 ratio
What bond gives these macromolecules their alpha helix shape?
Hydrogen bonds?
Channel proteins are used in what type of cell transport?
Facilitated transport
A student is working with a strong acid. Name at least 4 pieces of lab safety equipment that they would need.
Gloves, goggles, lab coat, kitty litter, safety shower/eyewash station
What do you usually do to raw data before you use it?
Average it
Name 3 groups of organisms that use carbohydrates to form their cell wall
Plants, Fungi, Bacteria (also archae!)
What cellular support structure is made of protein? What support structure in your body behaves similarly?
Cytoskeleton, and your skeleton
What is an example of a small nonpolar molecule that can cross the cell membrane via simple diffusion?
Oxygen and carbon dioxide
A scientist is working with mice; they are X-raying them to see what their skeletons look like. What two safety symbols would be outside of their lab?
Biohazard and radioactive
A line graph shows the population of a species over time. What conclusions can be drawn from the graph if the line is steadily decreasing?
The population is dying faster than its being born
What is the name of the lipid responsible for regulating bodily functions?
Steroids
What 3 things affect enzyme function, and how do they affect it?
pH, temperature, and substrate concentration
pH/temperature: if not in the ideal range, the protein will denature
Substrate concentration: The more substrate, the quicker the reaction
Give an example of a type of protein pump
Sodium potassium