Chapter 1- Biology: The study of life
A group of organisms of one type living in a single area
What is a population?
a substance that cannot be broken down to other
substances by chemical reactions
What is an element?
chemical bond that involves the sharing of electrons to form electron pairs between atoms.
What is a covalent bond?
Bonds formed within water molecules
What are Covalent Bonds?
compounds with the same molecular formula but different structures and properties
What are Isomers?
a characteristic an entity gains when it becomes part of a bigger system
What is an Emergent property?
substance consisting of two or more elements in a
fixed ratio
What is a compound?
chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities
What are ionic bonds?
Bonds formed between water molecules
What are Hydrogen Bonds?
Living organisms consist mostly of ____ based compounds
What is Carbon?
Contains no membrane bound organelles and has no nucleus (Ex: bacteria)
What are Prokaryotic cells?
smallest component of an element that retains
all of the chemical properties of that element.
What is an atom?
If an atom contains 36 electrons, how many electrons will be on its valance shell
What is 2?
Cohesion Vs Adhesion
Cohesion is the action or property of like molecules sticking together, being mutually attractive.
Adhesion is the tendency of dissimilar particles or surfaces to cling to one another.
Single bonds form this shape
Double bonds form this shape
tetrahedral
planar
a case where outputs from a system are subsequently fed back into it, minimizing or reducing the effect.
Ex: insulin lowers blood glucose when levels are high
What is Negative Feedback?
The 4 most plentiful elements found in the human body.
Double points if you can put them in order.
What is Oxygen (65%), Carbon (18.5%), Hydrogen (9.5%), and Nitrogen (3%).
The difference between Ions and Isotopes
Ions are an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Isotopes are two or more types of atoms that have the same atomic number and position in the periodic table, and that differ in nucleon numbers due to different numbers of neutrons in their nuclei.
Solvent vs Solute
A solvent is substance that dissolves a solute, resulting in a solution.
A solute is a substance that is dissolved in a solution.
DRAW LUKE!!!!!!
This isomer
What is a Cis-Trans Isomer?
Scientist who published On the Origin of Species by
Means of Natural Selection in 1859
Who is Charles Darwin?
DRAW LUKE!!!!!!
# of protons
# of neutrons
# of electrons
10, 10, 10
Strongest and weakest bond and their definitions.
Covalent bond: The sharing of electrons between two atoms
Van der Waals: forces are driven by induced electrical interactions between two or more atoms or molecules that are very close to each other.
The reason that there are less extreme temperatures near a large body of water than in areas void of large bodies of water
What is The high specific heat of water?
A large body of water has a higher heat capacity than land, meaning it takes more energy to warm and cool the temperature of water
DRAW LUKE!!!!!
This Functional Group
Amino group