9th Grade Biology Unit 1, Study Guide
what is starch made up of?
C6, H12, 06
what is ideally suited to form covalent bonds?
Carbon
In the process of ionic bonding outer energy level electrons are what?
Gained and lost
What phase of matter do you find Oxygen?
Gas Phase
What usually holds inorganic compounds together?
Ionic Bonds
Why does carbon bonds to many elements simultaneously?
It is capable of forming multiple covalent bonds
Cholesterol is a what?
Lipid
what reads and translates the DNA code?
RNA
Sugar is a what?
carbohydrate
what is a quick source of energy
carbohydrates
What are the four major divisions of biological organic substances?
carbohydrates, lipids, proteins, nucleic acids (polymers)
What speeds up chemical reactions?
catalysts and enzymes
What do genetic codes contain?
complex information and detailed instructions
what happens when salts dissolve in water?
components separate into ions
DNA contains what?
deoxyribose and sugar
AN atom that has 12 protons in its nucleus has an atomic number of what as well.
12
n = 3 has a maximum of how many electrons in it?
18
n = 1 has a maximum of how many electrons in it?
2
What does a compound consists of?
2 or more distinct atoms
A molecule may consist of what?
2 similar elements chemically bonded
n = 4 has a maximum of how many electrons in it?
32
n = 2 has a maximum of how many electrons in it?
8
In metabolism how many things are involved
8 things
AB and an ARROW
A + B is a decomposition reaction
Antibodies, certain hormones and hemoglobin are all what?
Proteins
What usually holds organic compounds together?
Covalent bonds
The breakdown of a polysaccharide into monosaccharides is an example of what?
Decomposition
Starch being broken down into sugar in the body is an example of what type of reaction?
Decomposition Reaction
How is DNA different from RNA?
Different in function and structure
What happens when fats decompose in an organism?
Energy is released.
Where is water in animal and human cells most often found? Is it in the liquid phase of matter or is is the gas phase of matter?
Liquid phase of matter.
Are catalysts and enzymes consumed when speeding up chemical reactions?
NO
Do all the subatomic particles participate in a chemical reaction?
NO
Is a hydrogen bond completed by the transfer of its sole electron to another element. Yes or No
NO - A hydrogen bond IS NOT completed by the transfer of its sole election to another element.
Is starch a monosaccharide?
No
DNA is what type of acid?
Nucleic acid
What forms polymers?
Organic compounds
What helps cell walls to conserve internal fluids?
Phospholipids
Hemoglobin is a what?
Protein
What does carbohydrates not always contain?
Protein
What level electrons are involved in any type of bonding?
Valence level Electrons
what is a biological catalyst
an enzyme
What is necessary for reactants to combine chemically
input of energy
Most carbohydrates are what?
monosaccharides
electrons of a neutral atom always equal the number of what?
protons
RNA contains what:
ribose
Name what is involved in metabolism
synthesis, growth, repair, decomposition, energy release, reversible reactions, equilibrium, exchange reactions, control of PH
A chemical reaction in your body in which bonds are broken is associated with what?
the release of energy
