1. Biochemistry test review

2. Activation energy is:
Energy it takes to be active
Energy you get from food to be active
Amount of energy required to start a reaction
Energy that is always moving

3. Enzymes:
Are a type of catalyst
Are made of protein
Help digest food
Are found in living organisms
All of the above

4. a is
Active site
Product
Substrate
enzyme

5. b is
Active site
Product
Substrate
enzyme

6. c is
Active site
Product
Substrate
enzyme

7. d is
Active site
Product
Substrate
enzyme

8. An electron has a charge of:-
Neutral +

9. A single unit used to build larger units would be a:
A. polymer
B. Monomer
C. Macromolecule
D. Nucleic Acid

10. Which type of macromolecule is used for quick energy?
Simple carbohydrates
Complex carbohydrates
Lipids
Nucleic Acids
Proteins

11. Energy that does not get used gets stored as which macromolecule?
Simple carbohydrates
Complex carbohydrates
Lipids
Nucleic Acids
Proteins

12. Which macromolecule is used for the storage of genetic information?
Simple carbohydrates
Complex carbohydrates
Lipids
Nucleic Acids
Proteins

13. Which macromolecule is used for building muscle?
Simple carbohydrates
Complex carbohydrates
Lipids
Nucleic Acids
Proteins

14. Nucleotides are the monomers for which polymer?
Protein
Carbohydrate
Lipids
Nucleic acids

15. Amino acids are the monomer for which macromolecule?
Protein
Nucleic acids
Lipids
carbohydrates

16. An acid could have a pH of:3 7 10 13

17. A neutral substance would have a pH of:3 7 10 13

18. A base would have a pH of:3 5 7 13

19. Of the following pH values which would be the strongest acid?1 5 9 14

20. Of the following pH values which would be the strongest base?1 5 9 14

21. A prediction or statement that is an if….then… statement is a:
A. conclusion
B. observation
C. control
D. hypothesis

22. Which skill are you using when you use your five senses to gather information?
A. posing questions
B. observing
C. developing hypotheses
D. designing experiments

23. In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the independent variable?
A. the size of the parachute
B. the height from which the parachute is dropped
C. the size of the object carried by the parachute
D. the time it takes for the parachute to drop

24. In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the dependent or manipulated variable?
A. the size of the parachute
B. the height from which the parachute is dropped
C. the size of the object carried by the parachute
D. the time it takes for the parachute to drop

25. A scientist wants to know what effect salt water has on the growth of a plant. He has two groups of plants. One group he gives normal water and the other group he gives salt water. What is the control in this experiment?
The salt water
The plants receiving normal water
The plants receiving salt water
The scientist