Miscelleanous
What is the first step of the scientific method?
Observation
What is the universal genetic code?
DNA (deoxyribonucleic acid)
An atom with a different amount of neutrons from the original element is an _______
Isotopes
What are the four macromolecules essential to life?
Proteins, nucleic acids, carbs and lipids
Genomics and Molecular Biology is
The structure and function of genes and molecules in living organisms.
This data is based on the characteristics of the values of the data we have.
Qualitative
Difference between asexual and sexual reproduction
sexual reproduction: type of reproduction in which cells from two parents unite to form the first cell of a new organism
If a Carbon has 4 protons, 4 nuetrons and 4 electrons, it's atomic number would be?
4
CO2+H2O -><- H2CO3
This reaction is in what?
Equillibrium
Disruption in homeostasis stop enzymes from working but what two factors would interfere with enzymes working?
Temperature and pH
A hypothesis must be
testable and falsifiable
What is the difference between curiosity and skepticism?
Curiosity helps scientists ask new questions while skepticism helps scientists avoid incomplete or false explanations, making sure scientific discoveries are rooted in evidence.
This property of water allows for water to have all of its special properties.
(hint: think charges)
polarity
What is the key difference in endothermic and exothermic reactions?
Endo absorbs more energy, Exo releases more energy
Reactants for Endo have less bond energy, Exo has more bond energy.
Can carbon be substituted with another element for organic compounds?
No because Carbon is highly unique and necessary for life (it also would have the most stable bonds).
What is the difference between a theory and hypothesis?
A theory has been worked on with years of research to back up evidence found where as a hypothesis is to test observations just discovered.
When Mr. Harper's cat, Shadow, hears a can opening - his ears perk up and his stubby body runs faster than it normally does to get to the source of the can? What would be the stimuli in this?
The can opening!
Between Orange Juice (4.2), Grapefruit (3.5) and Lemonade (2.8), which one would contain the least amount of hydrogen?
Orange juice because it is the least acidic.
Chemical reactions have reactants _____ and products _____.
change
form
Mixing water and acid
Lighting a match
Rusting iron
Water evaporating
Water freezing
Water evaporating
Coach Damien notices that some of his football players drink more water than others and wants to test if the amount of water students drink is related to their endurance level. One week before practice, everyone has a bottle of water. That afternoon, they run the bleachers and record how many times each player go up and back before resting. Next week they do 2 bottles, and the last week a gallon of water. What are the control group, experiment group and Constants?
Control - 1 bottle
Experiment - More than one bottle
Constants - The same exercise, time, etc
What is the difference between metabolism and homeostasis?
metabolism: the combination of chemical reactions through which an organism builds or breaks down materials - used for getting energy
homeostasis: relatively constant internal physical and chemical conditions that organisms maintain
Why does ice float?
In the solid state, molecules of water have more space and form a crystalline structure which allows ice to be less dense and float.
Which macromolecules is Nitrogen found in?