A lipid made from fatty acids that have no bonds between the carbon atoms
What is saturated fats
100
Anything that takes up space and has mass
What is Matter
100
How many total atoms are in one molecule of C22H44O
What is 67
100
When you boil water, is it a chemical or physical change?
What is Physical
100
Term describing a lack of affinity to water
What is hydrophobic
200
The most important chemicals in the study of life are included in the category of _____________________ molecules- list them for extra 200 pts
What is organic; C, N, O, S, P, H
200
The building blocks of matter
What is atoms
200
Identify the following as an atom, element or molecule:
a. P
B. N2
C. oxygen-16
D. PH3
What is
A. Element
B. Molecule
C. Atom
D. Molecule
200
When moving from solid to liquid and from liquid to gas, what is the catalyst
What is addition of energy in the form of heat
200
Breaking down complex molecules by the chemical addition of water
What is hydrolysis
300
Two different molecules that have the same chemical formula
What is isomer
300
Name the specific model used in our text to denote an atom
What is Bohr
300
Two atoms have the same number of neutrons but different numbers of protons- do they belong to the same element?
What is No, this would be an ion (in order to belong to the same element the number of protons would have to be the same)
300
Which types of changes are reversible
What is only physical changes
300
A term that describes a chemical reaction where molecules combine by removing water
What is dehydration reaction
400
A special class of proteins that act as catalysts for chemical reactions that support life
What is enzymes
400
A collection of atoms that all have the same number of protons
What is Element
400
In the following equation, C3H8+5O2--->3CO2 + 4H2O
1. is CO2 a product or reactant?
2. How many molecules of it are involved in the reaction?
What is
1. Product
2. 3
400
When one substance is dissolved in another and it is a physical change the result is called a
What is solution
400
The pH of three solutions is measured. Solution A has a pH of 1.5; the pH of solution B is 7.1; and solution C has a pH of 13.2 which solution or solution is or are acidic.
What is A is acidic, all others above 7 are considered basic
500
Name the three basic constituents of the two chains of nucleotides
What is deoxyribose (simple sugar with 5 C), a phosphate group (arrangement of P, H and O) and nucleotide base (accept also one of adenine, guanine, cytosine and thymine)
500
S-34 has how many protons, electrons and neutrons
What is 18
500
If the following molecule is a carbohydrate, what is the value of x?
C7HxO2
What is
4
(2:1 ratio in all carbs of H:O)
500
The substance being dissolved in a liquid is called a