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B4: Quiz 6 – Answers
B4: Quiz 6 – Answers
1)
a) Metabolism is all of the chemical reactions that are taking place in cells in an organism
b) An enzyme is a biological catalyst that speeds up the rate of reaction without being used in the reaction (the enzyme remains unchanged after the reaction)
2) The two reactions are:
3)
a) Glucose and nitrate ions
b) Amino acids
4)
a) Starch and cellulose
b) Glycogen
5)
a) Urea
b) We get rid of urea through urine (urea and water)
a) Metabolism is all of the chemical reactions that are taking place in cells in an organism
b) An enzyme is a biological catalyst that speeds up the rate of reaction without being used in the reaction (the enzyme remains unchanged after the reaction)
2) The two reactions are:
- Building larger molecules from smaller molecules
- Breaking down larger molecules into smaller molecules
3)
a) Glucose and nitrate ions
b) Amino acids
4)
a) Starch and cellulose
b) Glycogen
5)
a) Urea
b) We get rid of urea through urine (urea and water)
Questions
1)
a) Define metabolism.
b) What is an enzyme?
2) There are two different types of reactions in cells with respect to smaller and larger molecules. What are these two different types of reactions?
3)
a) Which two substances are combined together to make amino acids?
b) What are proteins made from?
4) Animals and plants join glucose molecules together to make larger molecules.
a) Give two substances that plants make from just glucose.
b) Give one substance that animals make from just glucose.
5)
a) What is the name of the substance that excess proteins are broken down in the body to produce?
b) How does the body get rid of the substance in part a?
1)
a) Define metabolism.
b) What is an enzyme?
2) There are two different types of reactions in cells with respect to smaller and larger molecules. What are these two different types of reactions?
3)
a) Which two substances are combined together to make amino acids?
b) What are proteins made from?
4) Animals and plants join glucose molecules together to make larger molecules.
a) Give two substances that plants make from just glucose.
b) Give one substance that animals make from just glucose.
5)
a) What is the name of the substance that excess proteins are broken down in the body to produce?
b) How does the body get rid of the substance in part a?