Experimental Design
This is the variable that is measured or observed in an experiment to see how it responds to changes to other variables.
What is the dependent variable?
This part of the cell theory states that all living organisms are made up of one or more of these.
What are cells?
This class of macromolecules includes fats, oils, and phospholipids, and is used for long-term energy storage.
What are lipids?
This term describes the energy required to start a chemical reaction.
What is activation energy?
This property of water allows it to stick to surfaces, such as when water droplets cling to a window or a leaf.
What is adhesion?
These are often unreliable sources for scientific research because they may be biased or not fact-checked.
What are websites or articles from social media? (sources with potential bias)
This is a scientific explanation that is based on a large body of evidence, but can still be revised or replaced with new data.
What is a theory?
This macromolecule is involved in providing structural support for cells and tissues, as well as speeding up chemical reactions.
What are proteins?
Without enzymes, reactions in living organisms would occur too slowly to support life. This is because enzymes help to ____ activation energy.
What is lower?
This property of water explains why it can move upward through plants, from the roots to the leaves, against gravity.
What is capillary action?
This is a possible explanation or prediction that can be tested through experimentation.
What is a hypothesis?
This type of microscope uses a beam of light to magnify objects and is commonly used in high school biology labs.
What is a light microscope?
Proteins are made up of carbon, hydrogen, oxygen, and nitrogen, with these smaller units linking together to form the macromolecule.
What are amino acids?
This factor affects the shape of the enzyme’s active site and can lead to denaturation if it is too high or too low.
What is temperature / pH ?
Water has this high property, meaning it requires a lot of heat to raise its temperature. This helps organisms maintain a stable internal temperature.
What is high specific heat?
When graphing a relationship between time and the growth of bacteria, which axis should time be placed on?
What is the x-axis?
This type of microscope allows us to view objects at a very high magnification by using a beam of electrons instead of light.
What is an electron microscope?
The monomers of nucleic acids are these subunits, which consist of a sugar, phosphate group, and a nitrogenous base.
What are nucleotides?
Enzymes speed up the conversion of reactants into these molecules, without being used up in the process.
What are the products?
Water has this property, which means it can dissolve many substances, earning it the nickname "universal solvent."
What is polarity?
A good experiment should have this to ensure that the results are caused by the independent variable and not by any other factors.
What is a control group?
This is the main difference between a scientific theory and a scientific law.
What is a theory explains “why” something happens, while a law describes “what” happens?
This macromolecule is composed of carbon, hydrogen, and oxygen in a ratio that allows it to function primarily in energy storage and insulation.
What are lipids?
Enzymes have a specific temperature range in which they are most efficient, but when exposed to temperatures above this range, the enzyme's structure begins to break down, a process known as _____.
What is denaturation?
Water molecules form this type of bond with each other, contributing to the cohesion and high surface tension of water.
What is a hydrogen bond?