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Study sets matching "molecules of life chapter 2 biology"

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Study sets matching "molecules of life chapter 2 biology"

43 terms
Biology Chapter 2 Chemistry and Molecules of Life
homeostasis
energy
metabolism
element
the maintenance of a relatively constant internal environment
the ability to do work. living organisms obtain energy either…
all the chemical reactions taking place in the cells of a liv…
a chemical pure substance that cannot be chemically broken do…
homeostasis
the maintenance of a relatively constant internal environment
energy
the ability to do work. living organisms obtain energy either…
106 terms
Biology Chapter 2: Atoms, Molecules, and Life
Living things are made up mostly of...
Element
Compound
Atom
Water Molecules
Pure substances that cannot be broken down into simpler subst…
Various combinations of two or more elements
The smallest particle into which an element can be broken dow…
Living things are made up mostly of...
Water Molecules
Element
Pure substances that cannot be broken down into simpler subst…
59 terms
Honors Biology Chapter 2: Chemistry & Molecules of Life
homeostasis
Energy
Metabolism
five functional traits of life
The maintenance of a relatively constant internal environment
The ability to do work living organism obtain energy either d…
All the chemical reactions taking place in the cells of a liv…
growth,reproduction,homeostasis,sense&respond to change,obtai…
homeostasis
The maintenance of a relatively constant internal environment
Energy
The ability to do work living organism obtain energy either d…
99 terms
Biology 1107k Chapter 2: Molecules of Life
What is a element?
What is a compound?
What is a atom?
What is the atomic number of a element?
A substance that cannot be broken down to other substances by…
A substance comprised of 2 or more elements combined in a fix…
The basic unit of a element
It determines the chemical properties of a element.
What is a element?
A substance that cannot be broken down to other substances by…
What is a compound?
A substance comprised of 2 or more elements combined in a fix…
62 terms
Chapter 2 Molecules of life
Atomic Number
Charge
Electron
Isotopes
number of protons in the atomic nucleus; determines the eleme…
Electrical property; opposite charges attract and like charge…
Negatively charged subatomic particle.
Forms of an element that differ in the number of neutrons the…
Atomic Number
number of protons in the atomic nucleus; determines the eleme…
Charge
Electrical property; opposite charges attract and like charge…
54 terms
Biology Chapter 2: Small Molecules and the Chemistry of Life
Atoms
Nucleus
Electrons
Protons
the smallest unit of a chemical element. Consists of a nucleu…
in cells, the centrally located compartment of eukaryotic cel…
a subatomic particle outside the nucleus carrying a negative…
a subatomic particle with a single positive charge. Determine…
Atoms
the smallest unit of a chemical element. Consists of a nucleu…
Nucleus
in cells, the centrally located compartment of eukaryotic cel…
35 terms
Biology essentials Chapter 2: The Chemical Basis of Life Atoms, Molecules and Compounds
Polar Covalent Bond
Ionic Bond
Carbon
Electrons
Bond in which atoms share electrons UNEQUALLY resulting in po…
Attraction between a positive and negative ion- atoms form io…
Can form 4 covalent bonds- low electronegativity.
Electrons have almost no mass at all; exist in discrete energ…
Polar Covalent Bond
Bond in which atoms share electrons UNEQUALLY resulting in po…
Ionic Bond
Attraction between a positive and negative ion- atoms form io…
37 terms
Chapter 2: Molecules of Life
Covalent bond
Double bond
Electronegativity
Polar covalent bond
Bond where atoms share electrons
Two adjacent atoms share 2 pairs of electrons
Difference in the ability of atoms to attract electrons
When electrons are unequally shared
Covalent bond
Bond where atoms share electrons
Double bond
Two adjacent atoms share 2 pairs of electrons
63 terms
Chapter 2: Molecules of life
Amino Acid
Atom
Neutrons
Protons
A subunit of a protein
The basic unit of matter. Made of protons, neutrons and elect…
uncharged particles. The neutrons and protons make up the nuc…
Positively Charged Particles. Number of protons and electrons…
Amino Acid
A subunit of a protein
Atom
The basic unit of matter. Made of protons, neutrons and elect…
25 terms
chapter 2 : molecules of life
what are the subatomic particles that…
what are the subatomic particles that…
where are the electrons located in an…
what does the atomic mass contain?
- protons (+), neutrons (neutral), and electrons (-)
- protons and neutrons
- they are in the space surrounding the nucleus
- protons and neutrons
what are the subatomic particles that…
- protons (+), neutrons (neutral), and electrons (-)
what are the subatomic particles that…
- protons and neutrons
43 terms
Biology Chapter 2 Chemistry and Molecules of Life
homeostasis
energy
metabolism
element
the maintenance of a relatively constant internal environment
the ability to do work. living organisms obtain energy either…
all the chemical reactions taking place in the cells of a liv…
a chemical pure substance that cannot be chemically broken do…
homeostasis
the maintenance of a relatively constant internal environment
energy
the ability to do work. living organisms obtain energy either…
57 terms
Chapter 2: Atoms, molecules, and life. Spence Biology
chemistry
Atom
States of matter
Elements in daily life
study of matter
Basic unit of matter
Solid, liquid, gas, plasma
carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium.
chemistry
study of matter
Atom
Basic unit of matter
35 terms
AP Biology Chapter 2- Atoms, Molecules, and Life
Acid
Acidic
Antioxidant
Atom
A substance that releases hydrogen ions when it is dissolved…
A substance with an hydrogen ion concentration exceeding the…
A molecule that reacts with a free radical, neutralizing it's…
The smallest particle of an element that still retains the pr…
Acid
A substance that releases hydrogen ions when it is dissolved…
Acidic
A substance with an hydrogen ion concentration exceeding the…
60 terms
Biology 113 Chapter 2 - Chemistry and Molecules of Life
5 functional traits of life
growth
reproduction
homeostasis
1. Growth... 2. Reproduction... 3. Homeostasis... 4. Sense and Respond…
increase in size, either the single cell's individual size, o…
the process of producing new organisms
maintaining a stable internal environment
5 functional traits of life
1. Growth... 2. Reproduction... 3. Homeostasis... 4. Sense and Respond…
growth
increase in size, either the single cell's individual size, o…
73 terms
Chapter 2 Biology 1107 (GGC) the molecules of life
atom
nucleus
protons
electron
...
...
...
...
atom
...
nucleus
...
41 terms
Biology Chapter 2: Chemistry and Molecules of Life
Growth
Reproduction
Homeostasis
Sense and respond to stimuli
the process of increasing in size
the process of producing new organisms
the maintenance of a relatively constant internal environment
the process of reacting to their environment
Growth
the process of increasing in size
Reproduction
the process of producing new organisms
40 terms
Biology Chapter 2: Atoms, Molecules, and Life
element
atoms
atomic nucleus
protons
a substance that can neither be separated into simpler substa…
fundamental structural units of elements; composed of a centr…
contains 2 types of subatomic particles: protons and neutrons
positively charged particles
element
a substance that can neither be separated into simpler substa…
atoms
fundamental structural units of elements; composed of a centr…
29 terms
Biology: Chapter 2 (Atoms, Molecules, and Life)
matter
element
ATOMS
protons
anything that has mass and takes up space
substance that cannot be separated or broken down into
-protons... -neutrons... -electrons
positively charged and located in the nucleus of an atom
matter
anything that has mass and takes up space
element
substance that cannot be separated or broken down into
9 terms
Chapter 2: Molecules of Life
Chemical Components of the Cell
Functional Groups
Major Classes of Biological Molecules…
Carbohydrates
-Organic compounds: always contain carbon and hydrogen... -Inorg…
-biological molecules interact by means of functional groups…
1. Carbohydrates ... 2. Lipids ... 3. Proteins... 4. Nucleic Acid
-Example: glucose C6H12O6... -Contain: C,H,O ... - H:O ratio: 2:1 (…
Chemical Components of the Cell
-Organic compounds: always contain carbon and hydrogen... -Inorg…
Functional Groups
-biological molecules interact by means of functional groups…
22 terms
Chapter 2: The Molecules of Life
What is a chemical bond?
What are the types of chemical bonds?
what is an ionic bond?
what is a covalent bond?
a force holding atoms together
ionic bonds... covalent bonds... polar covalent bonds
a bond with metal and non metal
a bond with two non metals
What is a chemical bond?
a force holding atoms together
What are the types of chemical bonds?
ionic bonds... covalent bonds... polar covalent bonds
111 terms
Chapter 2. The Molecules of Life
Element
Atom
Nucleus (of an atom)
Proton
A pure substance, such as oxygen, copper, gold, or sodium, th…
The basic unit of matter
The dense central part of an atom containing protons and neut…
A positively charged particle in the atomic nucleus
Element
A pure substance, such as oxygen, copper, gold, or sodium, th…
Atom
The basic unit of matter
57 terms
Chapter 2: Atoms, molecules, and life. Spence Biology
chemistry
Atom
States of matter
Elements in daily life
study of matter
Basic unit of matter
Solid, liquid, gas, plasma
carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium.
chemistry
study of matter
Atom
Basic unit of matter
44 terms
Biology chapter 2 small molecules and the chemistry of life
atoms
nucleus
electrons
protons
the smallest unit of a chemical element. consists of a nucleu…
in cells, the centrally located compartment of eukaryotic cel…
a subatomic particle outside the nucleus carrying a negative…
a subatomic particle with a single positive charge. the numbe…
atoms
the smallest unit of a chemical element. consists of a nucleu…
nucleus
in cells, the centrally located compartment of eukaryotic cel…
17 terms
Chapter 2: Molecules of life
_______—pure substance that contains o…
Living things are mostly composed of 6…
Atom
number of protons equal
element
carbon, oxygen, hydrogen, sulfur, nitrogen, and phosphorus
atomic number
_______—pure substance that contains o…
element
Living things are mostly composed of 6…
carbon, oxygen, hydrogen, sulfur, nitrogen, and phosphorus
28 terms
Chapter 2 The molecules of Life
Carbohydrates
Lipids
Proteins
Nucleic Acids
includes sugars and starches
includes fats phospholipids, oils and steroids
consisting of 20 amino acids
building blocks for DNA and RNA
Carbohydrates
includes sugars and starches
Lipids
includes fats phospholipids, oils and steroids
25 terms
Biology- Chapter 2: Atoms, Molecules, and Life
Ions
Isotope
Element
Atom
charged atoms
atoms of same element with different number of neutrons
a ... -..substance that cannot be separated into simpler substan…
the smallest unit of an element and each atom retains all the…
Ions
charged atoms
Isotope
atoms of same element with different number of neutrons
31 terms
chapter 2 - the molecules of life
chemistry
atom
matter
elements
study of matter
the fundamental unit of matter
1. anything that takes up space and has weight/mass... 2. made u…
pure substances that can not be broken down further... - 92 natu…
chemistry
study of matter
atom
the fundamental unit of matter
45 terms
Chapter 2- Molecules of Life
Atomic mass
Isotopes
Ions
Orbital
Number of protons + number of neutrons in an atom
Atoms of the same element that have a different number of neu…
Electrically charged atoms
The region of space that electrons occupy
Atomic mass
Number of protons + number of neutrons in an atom
Isotopes
Atoms of the same element that have a different number of neu…
46 terms
Chapter 2: Molecules Of Life
Matter
Atom
Properties of atoms
Basic four different macro molecules a…
All tangible material that occupy space and have mass
A tiny particle that cannot be subdivided into smaller substa…
1) Protons (p+): positively charged, found in the nucleus.... 2)…
1) Proteins... 2) Carbohydrates... 3) Nucleic acids... 4) Lipids
Matter
All tangible material that occupy space and have mass
Atom
A tiny particle that cannot be subdivided into smaller substa…
47 terms
Biology 1306 Chapter 2. Atoms, Molecules, and Life
Element
Atoms
Proton
Neutrons
a substance that cannot... be broken down into other... substances…
smallest units of an element, or... fundamental substance, that…
carries a positive charge (p+... ); in the nucleus
also in the nucleus; no charge
Element
a substance that cannot... be broken down into other... substances…
Atoms
smallest units of an element, or... fundamental substance, that…
20 terms
Chapter 2 - The Molecules of Life
adenosine triphosphate
macromolecules
Subunits join together by dehydration…
Subunits break apart by hydrolysis
energy currency of a cell... - phosphates have high energy bonds…
large molecules (polymers) ... 1. Protein... 2. Carbohydrates... 3. Li…
removing H20 to build units
adding H20 to break down units & bonds
adenosine triphosphate
energy currency of a cell... - phosphates have high energy bonds…
macromolecules
large molecules (polymers) ... 1. Protein... 2. Carbohydrates... 3. Li…
45 terms
Chapter 2: molecules of life
Molecule
Chemical Bond
Valence Electrons
Molecular Orbital
2+ atoms attached together
Any form of attraction between atoms that holds them together.
The electrons farthest from the nucleus, which are at the hig…
A merged orbital traversed by a pair of shared electrons. The…
Molecule
2+ atoms attached together
Chemical Bond
Any form of attraction between atoms that holds them together.
88 terms
Chapter 2 the molecules of life
Elements
Each atom contain one type of atom
Atoms consist
Nucleus has
pure substances that cannot be broken down any farther. Earth…
the basic unit of matter
of proton, neutron, and electron
proton positive charged and neutrons electrically neutral par…
Elements
pure substances that cannot be broken down any farther. Earth…
Each atom contain one type of atom
the basic unit of matter
48 terms
Biology Chapter 2. Small Molecules and The Chemistry of Life
What has no mass
What has a negative charge
What has mass
How much Mass does 1 proton have?
Electrons
Electrons
Protons and Nuetrons
1amu
What has no mass
Electrons
What has a negative charge
Electrons
60 terms
Chapter 2 - Molecules of life
the most stable when the outer orbital…
are formed when atoms bond together... A.…
types of chemical bonds... A. Covalent bo…
sharing electrons between atoms. Creat…
A. atoms
B. Molecules
A. all of the above
A. Covalent
the most stable when the outer orbital…
A. atoms
are formed when atoms bond together... A.…
B. Molecules
60 terms
Chapter 2 - Molecules of Life
atom
atomic number
charge
electron
Particle that is a fundamental building block of matter.
Number of protons in the atomic nucleus; determines the eleme…
Electrical property of some subatomic particles. Opposite cha…
Negatively charted subatomic particle that occupies orbitals…
atom
Particle that is a fundamental building block of matter.
atomic number
Number of protons in the atomic nucleus; determines the eleme…
30 terms
biology chapter 2 small molecules and the chemistry life
what is an atom?
what is a molecule?
what is an element?
how do atoms form molecules?
basic unit of chemistry
two atoms linked by bonds
it is a pure substance, only 1 type of atom
electrons may be shared or transferred between atoms
what is an atom?
basic unit of chemistry
what is a molecule?
two atoms linked by bonds
23 terms
Chapter 2: molecules of life, lipids
four organic macromolecules
roles of carbohydrates
polysaccharides
monosaccharides
1. carbohydrates... 2. lipids... 3. proteins ... 4. nucleic acids (DNA…
-short-term energy storage... -simple and complex
-made of monosaccharide subunits ... -glycogen (excess sugar in…
1 carbon ring... glucose, fructose
four organic macromolecules
1. carbohydrates... 2. lipids... 3. proteins ... 4. nucleic acids (DNA…
roles of carbohydrates
-short-term energy storage... -simple and complex
23 terms
Chapter 2: Molecules of Life
atomic number
atomic column
oxygen has an atomic number of 8 and i…
covalent bond
number of protons/electrons (unless you have an ion)
number of valence electrons
6 valence electrons; 2 covalent bonds
pair of valence electrons shared between 2 atoms; very strong…
atomic number
number of protons/electrons (unless you have an ion)
atomic column
number of valence electrons
63 terms
Chapter 2: The Molecules of Life
Elements
Atom
Protons
Neutrons
Earth, Fire, Air, Water
The basic unit of matter
Positively charged particles
Neutral particles
Elements
Earth, Fire, Air, Water
Atom
The basic unit of matter
51 terms
Chapter 2: The Molecules of Life
elements
atom
nucleus
protons
small number of fundamental elements
the basic unit of matter
the center of the atom
positively charged particles located in the nucleus
elements
small number of fundamental elements
atom
the basic unit of matter
40 terms
Chapter 2: Molecules of Life
Elements
Atom
Proton
Neutron
Pure substances that cannot be further broken down by chemica…
Most basic building block of elements
Positively charged molecule in the atom's nucleus
Particle with equal mass to a proton, with no charge, located…
Elements
Pure substances that cannot be further broken down by chemica…
Atom
Most basic building block of elements
54 terms
Chapter 2: The Molecules of Life
Elements
Atom
Electrons
Protons
Pure substances that can not be broken down further
Basic unit of matter
Negatively charged particles that move around the nucleus
Positively charged particles that determine the atomic number
Elements
Pure substances that can not be broken down further
Atom
Basic unit of matter
22 terms
Chapter 2: The Molecules of Life
Element
Atom
Proton
Neutron
substances that have unique chemical properties & cannot be b…
Basic unit of all matter
positively charged particles
uncharged particles
Element
substances that have unique chemical properties & cannot be b…
Atom
Basic unit of all matter
62 terms
Chapter 2: The Molecules of Life
Amino Acid
Atom
Carbohydrate
Covalent Bond
Subunit of a protein
Basic unit of matter
Compound containing principally carbon, hydrogen, and oxygen,…
Strong chemical bond between two atoms that share electrons
Amino Acid
Subunit of a protein
Atom
Basic unit of matter
48 terms
The molecules of Life Chapter 2
the study of atoms and molecules
neutron, proton, electron
one type of atom
two or more atoms
Chemistry
Atom
Element
Molecule
the study of atoms and molecules
Chemistry
neutron, proton, electron
Atom
20 terms
Chapter 2: The Molecules of Life
What is the chemical basis for water's…
Which one of the following gases was N…
A young girl is staring at the raindro…
An ionic interaction, such as the inte…
a. Because water is polar, it disrupts both hydrogen and ioni…
c. oxygen
b. hydrogen bonds between water molecules.
b. False
What is the chemical basis for water's…
a. Because water is polar, it disrupts both hydrogen and ioni…
Which one of the following gases was N…
c. oxygen
35 terms
Chapter 2- The Molecules of Life
Isotopes
Molecules
Chemical Bond
Valence Electrons
Atoms of the same element that have different number of neutr…
A substance made up of two or more atoms
Any form of attraction between atoms that holds them together
The electrons farthest from the nucleus, which are at the hig…
Isotopes
Atoms of the same element that have different number of neutr…
Molecules
A substance made up of two or more atoms
124 terms
biology 1 chapter 2: chemistry of life 1 ~ atoms, molecules, and water
hydrogen atom
2
8
rows
smallest atom
maximum number of electrons in 1st energy level
maximum number of electrons in any energy level but the 1st one
represent energy shells surrounding the nucleus
hydrogen atom
smallest atom
2
maximum number of electrons in 1st energy level
80 terms
Chapter 2; Molecules of Life
solvent
temperature stability
reason ice floats
cohesion
can dissolve molecules with both ionic and polar covalent bonds
absorbs much more heat before its temperature rises
hydrogen bonds cause rigid, lattice-like bonding pattern of i…
water molecules stick to each other
solvent
can dissolve molecules with both ionic and polar covalent bonds
temperature stability
absorbs much more heat before its temperature rises
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