Atoms, Bonds and Chemistry
Have the same number of protons but differ in the number of neutrons.
What are isotopes?
These four nucleotides compose DNA.
What is adenine, thymine, guanine and cytosine? (ATGC)
Nucleotides compose these polymers.
What are nucleic acids?
All living things are composed of these basic units.
What are cells?
An explanation of some phenomenon backed up by a large body of evidence.
What is a scientific theory?
The smallest unit of a substance that retains all the chemical properties of that substance.
What are molecules?
These hydrophobic lipids have a hydrophobic fatty acid tail and a hydrophillic phosphate head.
What are phospholipids?
These long polymers of sugars can include glucose.
What are polysaccharides?
These five basic characteristics define life.
What is cellular organization, metabolism, homeostasis, heredity, growth and reproduction.
A testable explanation of a question generation by observation.
What is a hypothesis?
This is the strongest of the bonds, which is holds atoms together by sharing electrons.
What is covalent?
This is the coiling or pleating of amino acids.
What is secondary structure?
This process joins two pieces together by removing a water molecule.
What is dehydration synthesis?
This level of organization includes atoms, molecules, macromolecules, organelles and cells.
What is the cellular level?
What is the theory of heredity?
What are hydrogen bonds?
Simple sugars with only one sub-unit.
What are monosaccharides?
These lipids have three fatty acids attached to a glycerol backbone.
What are triglycerides?
Organisms whose structures and functions survive the best have the most offspring.
The probability that differences between experimental treatments is not due to chance alone.
What is significance?
This property explains how hydrogen bonds holds molecules of water together. Water molecules are "sticky".
What is cohension?
The primary role of proteins.
What are enzymes?
This polysaccharide cannot be digested by humans but offers much of the structural support that plants require.
What is cellulose?
This theory states that DNA is the genetic material, it codes for proteins and RNA that determine what an organism will "be like".
What is gene theory?
In an experiment, these hold all possible factors constant except the one that is being investigated.
What is a control?