What is Science
What is the purpose of science?
To provide natural and testable explanations to scientific problems in the world
What is the basic unit of matter?
Atom
what does polarity mean?
unequal sharing
What do organisms utilize Carbs for?
To store and release energy and structural support and protection
What is the role of enzymes?
Speed up chemical reactions that occur in cells
What is a Scientific theory?
A tested highly reliable Scientific explanation of a topic
What are the charges of Protons, electrons, and neutrons
Protons- Positive
Neutrons- Neutral
Electrons- Negative
What does Polarity cause?
Cohesion and adhesion
What are the things called that make up polymers?
Monomers
What is the energy called that is needed to get a reaction started ?
Activation Energy
What characteristics do all living things have in common?
They are made up of cells, they reproduce, they are based on a universal genetic code, they grow and develop, the obtain and use materials and energy,
What is a isotope?
Atoms of the same element that differ in the numbers of neutrons the contain
what does cohesion cause?
Surface tension
What do lipids help form?
Important parts of biological membranes and waterproof coverings
The elements that engage in chemical reaction are called what
Reactants
What are the 7 crosscutting concepts in biology?
1.Cause and effect
2.Systems and System models
3.Stability and Change
4. Patterns
5.Scale, proportion, Quantity
6.Energy and matter
7.Structure and Function
Explain what forms a Covalent bond?
covalent bonds are formed when one electron is shared from each atom
Between the oxygen and hydrogen found in a water molecule which of the two do we say is more Negative and why?
Oxygen because it Pulls in extra electrons
What do nucleic acids store and transmit?
Hereditary or Genetic information
What do we call the reactants of enzyme-catalyzed reactions ?
Substrates
What is a field of Biology?
A branch of study and research within biology
What are the main types of chemical bonds?
The two main types of chemical bonds are ionic and covalent bonds
What is capillary action?
the force of attraction between water molecules and molecules in a surrounding object.
What are the four elements that protein is made up of?
1.Nitrogen
2.Carbon
3.Hydrogen
4.Oxygen
what changes occur to chemical bonds during a chemical reaction ?
The reactions cause the atoms in the compounds to join together