Basic Chemistry
Atom
What holds together compounds by connecting atoms?
Chemical bonds
Water is a ________ molecule, meaning it has both a partial positive and partial negative charge.
polar
What are large molecules found in living things and include carbohydrates, lipids, proteins, and nucleic acids?
Macromolecules
Proteins are made of building blocks called ___________
Amino acids
What shows elements arranged by their atomic number?
Periodic table
What type of bonds involve the transferring of electrons between atoms
Ionic bonds
What is the property where water molecules stick together, creating surface tension?
Cohesion
Carbohydrates, lipids, proteins, and nucleic acids are all examples of
macromolecules
What are the two types of nucleic acids?
DNA and RNA
What consists of only one type of atom?
Element
What type of bonds involve the sharing of electrons between atoms?
Covalent bonds
What is the property where water sticks to other substances, causing a curve in a tube?
Adhesion
Amino acids are joined together by ________________ bonds to form proteins.
peptide
Nucleic acid is responsible for storing what in cells?
Information of genetic information
What consists of two or more elements bonded together?
Compound
What are attractions between water molecules that occur because of water's polarity?
Hydrogen bonds
Water has a high heat capacity, which means it can _____ heat effectively.
absorb
__________ compounds are chains of carbon atoms found in living things
Organic
What is an example of a protein found in blood?
Atoms contain three types of particles, protons, neutrons, and electrons. Identify the charge of each of these.
Proton = positive
Neutron = neutral
Electron = negative
These are weak attractions between molecules, such as those that help gecko feet stick to surfaces
Van der Waals Forces
___________ is the amount of energy needed to change the temperature of a substance.
Heat capacity
What is the difference between saturated and unsaturated lipids?
Saturated lipids are fats that are solid. Unsaturated lipids are fats that are a liquid
Lipids are made of a _________________ molecule attached to fatty acids.
glycerol