U2L7 Matter Conservations Matters Flashcards
1
Q
what is a chemical reaction?
A
a process that changes the chemical structure of matter
2
Q
what is law of conservation of matter?
A
a scientific law that states that matter cannot be created or destroyed
3
Q
what is a polysaccharide?
A
a sugar made of 3 or more monosaccharides
4
Q
what is a product?
A
the output of a chemical reaction
5
Q
what is a reactant?
A
the input of a chemical reaction
6
Q
what happens to glucose molecules during the krebs cycle?
A
glucose molecules are broken down via the Krebs cycle to provide energy to power cells
7
Q
what is chitin?
A
a polysaccharide used by arthropods to build their exoskeleton
8
Q
how are cellulose and chitin different?
A
both have carbon, hydrogen, and oxygen, but chitin contains nitrogen and cellulose does not
