Parts of an Atom
What has a positive charge inside the nucleus of an atom?
proton
What is the name given to water, as it can dissolve many compounds?
universal solvent
What is a bond which electrons are transferred (gain/lose)?
ionic
What is another name for saccharides or sugars?
carbohydrates
What is a single molecule, such as a nucleotide, known as?
monomer
What is formed when an atom gains or loses an electron
ions
What property allows 2 or more water molecules to stick together?
cohesion
What do you call electrons that share to form bonds?
covalent
Amino acids are the monomers for which macromolecule?
protein
Dehydration synthesis reactions build bonds and store what?
energy
If an atom has an atomic number of 8, how many electrons are present?
8
What is the name for water "sticking" to another substance, such as glass?
adhesion
What bond is between water MOLECULES?
hydrogen
Which macromolecule regulate chemical reactions?
proteins
Where are electrons located on an atom?
outside the nucleus
What is the invisible film on water that makes it look like insects are walking on water?
surface tension
Which bond is located between ATOMS in water?
Which macromolecules contains nitrogen?
nucleic acids and protiens
Which reaction would be used to break down food in your digestive system by adding water?
hydrolysis
What do you call atoms that have the same atomic number but different mass numbers?
isotope
What makes water a great universal solvent? (Hint: water has a +/- charge)
polarity
How many bonds can carbon form?
4
Which macromolecule is used for long term energy storage?
lipids
Which reaction bonds monomers together to form a polymer?
dehydration synthesis or condensation