Experimental Design
Which variable do scientists change in an experiment?
Independent variable
What three subatomic particles make up an atom?
What is the property of water that allows insects to walk on it?
Surface Tension
What are the four types of macromolecules?
Carbohydrates, Lipids, Proteins, & Nucleic Acids
What type of macromolecule are enzymes?
Proteins
What part of an experiment is left the same in order to measure results?
Control variable
What determines what element an atom is?
The number of protons or the atomic number.
What is it called when water molecules are attracted to other water molecules?
Cohesion
Which macromolecule is responsible for short term energy as well as providing structure?
Carbohydrates
What is the function of enzymes?
To lower activation energy
Why are repeated trials important in experiments?
What type of bond involves the sharing of electrons?
Covalent
What is it called when water molecules are attracted or 'stick to' a different substance?
Adhesion
What is the function of proteins in the body?
Provide structure, enzymes, and regulate body functions
What happens when an enzyme is denatured?
It changes shape meaning no substates can bind to the enzyme.
How many independent variables should you have in an experiment?
1
If an element has 8 protons, how many neutrons will it have?
8
Acidic substances have an excess of which type of ion?
H+
What is the monomer of a nucleic acid?
Nucleotide
What are the factors that can denature an enzyme?
Temperature & pH
When your results do not support your hypothesis what is the next step?
To come up with another hypothesis to answer your question and begin the scientific method again.
If an element does not have the same number of neutrons as it does protons, what do we call it?
Isotope
Basic substances have an excess of which type of ion?
OH-
How are lipids and carbohydrates different?
Lipids are for long term energy, carbohydrates are for short term energy
Lipids are hydrophobic
What is dehydration synthesis?
Removing water to build up or form a bond.