Vocabulary
Cohesion
attractive force holds molecules of same subtance together
Enzymes do what to the activation energy of a reaction
decrease the activation energy
What type of bond shares electrons
Covalent bonds
define atom
building block of matter
Define atom
Building block of matter
Adhesion
attractive force holds molecules of different substances together
Area of an enzyme to which a specific subtrate fits is ________
Active site
Four nitrogenous bases of DNA
guanine, thymine, cytosine, adenine
If the following molecule is a carbohydrate, what is the value of x? C16HxO10
20
Determines chemical properties of atom
Electrons
Biosynthesis
process by which living organisms produce larger molecules from smaller ones
Sucrose is a disacchride. If broken down, what 2 things does it become?
Glucose and Fructose
What determines the properties of proteins
Type, number, order
How many total atoms are in a C8H14O7 molecule?
29
I wrote 56 electrons, 55 neutrons, and 55 protons in my lab report for an atom. What's wrong?
Protons and electrons should be the same
Saturated Fat
lipid made from fatty acids that have no double bonds between their carbon atoms
Glucose and Fructose are examples of what type of carbohydrate?
Monosacchrides
20 amino acids. They differ in structure in their ______.
R group
a pH of 12 is acidic or alkaline
alkaline
Fe-55 an isotope of Fe has 26 neutrons. How many protons does it have?
29 protons
Activation Energy
energy needed to get reactions started
Dehydration reaction removes what from monosaccharides to form disacchrides?
Water
In an ionic bond if an atom gains an electron, what is the charge of that ion?
Negative
Temp in desert drops more at night than cities near oceans. Why?
High Heat Capacity
Nucleus of atom is made oup of what
Protons and Neutrons