LRCC ARC RAMONES BIO 300 EXAM 2
FLASH CARDS
What are the two things that are needed for life and/or cells to exist? (Biomolecules &
Nutrients) - answers1. Matter
2. Energy
What are the two forms of energy?
(Biomolecules & Nutrients) - answers1. Kinetic (Energy of motion)
2. Potential (Stored energy)
What are the three states of matter? How are the states determined?
(Biomolecules & Nutrients) - answers1. Solid
2. Liquid
3. Gas
The states are determined by the amount of kinetic energy.
What is the most basic building block of matter?
(Biomolecules & Nutrients) - answersAtom
What two main parts make up an atom? In addition, what makes up each main part?
(hint: - +)
(Biomolecules & Nutrients) - answers1. Nucleus - consists of Protons and Neutrons
2. Electron Cloud - consists of Electrons (cloud has no measurable weight and is key in
chemical bonding)
What are elements?
(Biomolecules & Nutrients) - answersGroup of atoms with the same chemical
characteristics
What is an element's atomic number?
(Biomolecules & Nutrients) - answersNumber of protons; unique to each element
What is an element's atomic weight?
(Biomolecules & Nutrients) - answersNumber of protons and number of neutroms
What are isotopes? What are some applications of isotopes?
(Biomolecules & Nutrients) - answersAtoms with the same number of protons but
different number of neutrons.
Can be detected to identify disease, date fossils or analyze food webs.
, What are the essential elements for life?
(Biomolecules & Nutrients) - answers1. Carbon
2. Hydrogen
3. Nitrogen
4. Phosphorus
5. Oxygen
6. Sulfur
What is a molecule?
(Biomolecules & Nutrients) - answersTwo or more atoms bonded together via sharing or
trading electrons.
What are the unique characteristics of water?
(Biomolecules & Nutrients) - answers1. Polar (positive and negative side)
2. Less dense as a solid
3. Creates surface tension
4. Moderates temperature change
5. Facilitates chemical reactions
6. Good solvent
What are macromolecules?
(Biomolecules & Nutrients) - answersVery large molecules; usually made of smaller
repeating units of atoms bonded together (also known as monomers)
How do molecules change?
(Biomolecules & Nutrients) - answersChemical reactions; a change in matter involving
energy where chemical bonds between atoms are created or broken
What are the four BIOMOLECULES essential for life/needed to build a cell?
(Biomolecules & Nutrients) - answers1. Carbohydrates
2. Proteins
3. Nucleic Acids
4. Lipids
What are the key characteristics of all biomolecules?
(Biomolecules & Nutrients) - answers1. Organic molecules, which contain carbon
2. Macromolecules
3. Carbon Skeleton (shape and form) + Attached/R groups (functionality)
Why is carbon so special?
(Biomolecules & Nutrients) - answers1. Forms strong reliable bonds
2. Is able to bond to 4 different atoms at the same time
3. Great building block
What are the four types of carbohydrates?
FLASH CARDS
What are the two things that are needed for life and/or cells to exist? (Biomolecules &
Nutrients) - answers1. Matter
2. Energy
What are the two forms of energy?
(Biomolecules & Nutrients) - answers1. Kinetic (Energy of motion)
2. Potential (Stored energy)
What are the three states of matter? How are the states determined?
(Biomolecules & Nutrients) - answers1. Solid
2. Liquid
3. Gas
The states are determined by the amount of kinetic energy.
What is the most basic building block of matter?
(Biomolecules & Nutrients) - answersAtom
What two main parts make up an atom? In addition, what makes up each main part?
(hint: - +)
(Biomolecules & Nutrients) - answers1. Nucleus - consists of Protons and Neutrons
2. Electron Cloud - consists of Electrons (cloud has no measurable weight and is key in
chemical bonding)
What are elements?
(Biomolecules & Nutrients) - answersGroup of atoms with the same chemical
characteristics
What is an element's atomic number?
(Biomolecules & Nutrients) - answersNumber of protons; unique to each element
What is an element's atomic weight?
(Biomolecules & Nutrients) - answersNumber of protons and number of neutroms
What are isotopes? What are some applications of isotopes?
(Biomolecules & Nutrients) - answersAtoms with the same number of protons but
different number of neutrons.
Can be detected to identify disease, date fossils or analyze food webs.
, What are the essential elements for life?
(Biomolecules & Nutrients) - answers1. Carbon
2. Hydrogen
3. Nitrogen
4. Phosphorus
5. Oxygen
6. Sulfur
What is a molecule?
(Biomolecules & Nutrients) - answersTwo or more atoms bonded together via sharing or
trading electrons.
What are the unique characteristics of water?
(Biomolecules & Nutrients) - answers1. Polar (positive and negative side)
2. Less dense as a solid
3. Creates surface tension
4. Moderates temperature change
5. Facilitates chemical reactions
6. Good solvent
What are macromolecules?
(Biomolecules & Nutrients) - answersVery large molecules; usually made of smaller
repeating units of atoms bonded together (also known as monomers)
How do molecules change?
(Biomolecules & Nutrients) - answersChemical reactions; a change in matter involving
energy where chemical bonds between atoms are created or broken
What are the four BIOMOLECULES essential for life/needed to build a cell?
(Biomolecules & Nutrients) - answers1. Carbohydrates
2. Proteins
3. Nucleic Acids
4. Lipids
What are the key characteristics of all biomolecules?
(Biomolecules & Nutrients) - answers1. Organic molecules, which contain carbon
2. Macromolecules
3. Carbon Skeleton (shape and form) + Attached/R groups (functionality)
Why is carbon so special?
(Biomolecules & Nutrients) - answers1. Forms strong reliable bonds
2. Is able to bond to 4 different atoms at the same time
3. Great building block
What are the four types of carbohydrates?
