Scientific Method
Can a scientific theory become a law?
No, a theory explains why while a law explains what.
When it is raining what property helps the water droplets form?
Cohesion
What type of macromolecule assists with speeding up reactions within the cell?
Proteins
Enzymes are molecules that help in speeding up chemical reactions. Which macromolecule do they belong to?
Proteins
Which of the following will not dissolve in water?
Salt sugar baking soda and oil
Oil
What is a dependent variable?
the factor that you measure and test in an experiment, and it changes in response to the independent variable.
What connects water molecules together?
Hydrogen Bonds cause water is polar.
What is Image A
Lipid
John is doing an experiment and adds enzyme lipase wanting to know if it would speed up the reaction that breaks down lipids. Which of the following statements best explains what would happen?
Lipase is an enzyme that would lower the activation rate leading to the reaction speeding up.
Proteins, like immunoglobulin A, contain which elements?
CHON
What is a independent variable?
the factor in an experiment or study that you change, control, or manipulate to see what effect it has on another factor
During a lab in Biology class, students placed celery in a beaker with blue food dye. What would be the result after a couple of days?
The celery will turn blue due to Capillary action.
What is image B
Carbohydrate (quick source of energy)
What is it called when an enzyme looses its shape and how does it happen?
Denature, extreme heat
How does water freezing effect aquatic environments?
Frozen water floats, insulates, and protects aquatic life.
What is the difference between a Constant and the Control?
A constant are items or variables that stay the same in every trial, while a control is the baseline that you compare your other trials to.
Tell me the 3 PH level ranges.
1-6 Acid 7 neutral 8-14 basic/base
What is image C
Nucleotide
If a genetic defect prevented a protein from being produced that normally helps speed up biochemical reactions, which of the following would most likely occur in the cell?
The reaction the protein catalyzes would proceed very slowly or not at all.
Amylase is an enzyme in saliva that helps break down starch into glucose. Lisa wants to determine the approximate pH at which amylase works most effectively. She plans to test the enzyme at pH levels of 2, 5, 9, and 12 while keeping the starch concentration the same for each trial. What is the best way to begin setting up this laboratory experiment
She should be sure the temperature and the concentration of the enzyme is the same when testing each pH.
What are the 5 steps of the scientific method?
Observing, Forming Hypothesis, Testing Hypothesis, Analyzing Data, Evaluating Results
You have 4 liquids. Liquid A changed 30 degrees, Liquid B changed 24 degrees, Liquid C changed 22 degrees, and Liquid D change 12 degrees. Based on the heat capacity of water which one is water out of the 4?
Liquid D
Carbohydrates can be difficult to digest, causing gas and discomfort. Which supplement might help this issue?
Taking carbohydrate-specific enzymes to speed up digestion in the stomach.
In a laboratory experiment, a 10-gram sample of an enzyme is mixed with different quantities of substrate, and the rate of the resulting chemical reaction is measured. Which statement best describes how the enzyme’s reaction rate changes as the substrate concentration changes?
As substrate concentration increases, the reaction rate increases and then levels out.
If a genetic defect blocks the production of a specific enzyme, what will most likely happen to the chemical reaction that the enzyme normally accelerates?
The chemical reaction will slow down dramatically or cease entirely.