unit 1 biochemistry properties of water and enzyme review
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Unit 1 Biochemistry, properties of water, and enzyme review. 1. Which of these work together to break down something?. a. Sugar and glucose b. Amino acid and Protein c. Fats and Lipids d. Enzymes and substrates.

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1 which of these work together to break down something

1. Which of these work together to break down something?

a. Sugar and glucoseb. Amino acid and Protein

c. Fats and Lipids

d. Enzymes and substrates

2 which of these substances with the following ph is more acidic
2. Which of these substances with the following pH is more acidic?
  • Substance A – pH 2
  • Substance B -pH 8
  • Substance C – pH 5
  • Substance D – pH 4
4 the property of water helps in the formation of soil
4.The ___ property of water helps in the formation of soil.
  • a. capillary action
  • b. expansion during freezing
  • c. evaporative cooling
5 laundry detergent typically has a ph of 3 which indicates a n solution
5. Laundry detergent typically has a pH of 3 which indicates a(n) ___ solution?
  • a. acidic
  • b. basic
  • c. neutral
6 the property of water removes heat helping to cool your skin through sweating
6. The ___ property of water removes heat helping to cool your skin through sweating.
  • a. capillary action
  • b. evaporation
  • c. cohesion
7 one of the properties of water is that it is polar why do you consider water polar
7. One of the properties of water is that it is polar. Why do you consider water polar?

a. It is clear.

b. It is transparent.

c. It has charges (positive and negative charges)

d. IDK

8 one of the properties of water is that it has surface tension why is this true
8. One of the properties of water is that it has surface tension. Why is this true?
  • Water is polar.
  • Water has cohesive and adhesive properties.
  • Water has capillary action.
  • IDK
9 which macro molecule stores the genetic material
9. Which macro molecule stores the genetic material?
  • Protein
  • Carbohydrate
  • IDK
  • Nucleic acids
10 all organic compounds contain which element
10. All organic compounds contain which element?
  • a. calcium
  • b. carbon
  • c. chlorine
11 is water an organic compound
11. Is water an organic compound?
  • a. yes
  • b. no
  • c. sometimes it is and sometimes not
12 which macromolecule is made up of amino acids
12. Which macromolecule is made up of amino acids?
  • a. carbohydrates
  • b. lipids
  • c. proteins
13 starches sugars are both examples of which macromolecules
13. Starches & sugars are both examples of which macromolecules?
  • a. carbohydrates
  • b. lipids
  • c. proteins
14 fats oils are both examples of which macromolecule
14. Fats & oils are both examples of which macromolecule?
  • a. carbohydrates
  • b. lipids
  • c. proteins
15 what does carbohydrate and fats have in common
15. What does carbohydrate and fats have in common?
  • They are both sources of energy.
  • They are both from the same food.
  • They are readily available.
  • IDK
16 which of the following macro molecules make up your skin hair and nail
16. Which of the following macro molecules make up your skin, hair and nail?
  • Carbohydrate
  • Fats and Lipids
  • Proteins
  • IDK
17 which of these foods will give you abundant energy to perform well during a cross country race
17. Which of these foods will give you abundant energy to perform well during a cross country race?
  • Vegetable and broccoli
  • Tea and Candy bars
  • Spaghetti and Juice
  • IDK
18 one of these is not among the four major elements found in our human body are
18. One of these is not among the four major elements found in our human body are?
  • Carbon
  • Oxygen
  • Hydrogen
  • Calcium
19 which of these macro molecules help animals to retain or conserve heat
19. Which of these macro molecules help animals to retain or conserve heat?
  • Lipids
  • Protein
  • Carbohydrate
  • IDK
21 match the following macro molecules with their functions
21. Match the following macro molecules with their functions?
  • Carbohydrate a. Build tissues
  • Protein b. Slow Source of energy
  • Lipids (Fats and Oil). C. genetic information
  • Nucleic Acid d. Quick source of energy
22 an enzyme speeds up a chemical reaction and can therefore be called
22. An enzyme speeds up a chemical reaction and can therefore be called?
  • catalyst
  • protein
  • Ion
  • atom
23 which of these factors affect enzyme reactions
23. Which of these factors affect enzyme reactions?
  • Heat and temperature.
  • Salt and sugar
  • Protein and carbohydrate
  • IDK
24 enzymes are specific because
24. Enzymes are specific because?
  • Each has a specific active site for a particular substance.
  • They can change shape and size during a reaction.
  • They speed chemical reaction.
  • IDK
25 enzymes are a form of
25. Enzymes are a form of ___.
  • a. carbohydrate
  • b. lipid
  • c. protein
  • IDK
27 the area where the enzyme attaches to the substrate is called the
27. The area where the enzyme attaches to the substrate is called the ___.
  • a. active site
  • b. cohesion area
  • c. vectors
28 enzymes work because they lower the
28. Enzymes work because they lower the -
  • chemical reactant rate
  • active site location

c. activation energy

answer key
Answer key

15. A

16. C

17. C

18. D

19. A

20. B

21. carb-d, protein-a, lipid-b, nucleic acid-c

22. A

23. A

24. A

25. C

26. A

27. A

28. c

1. d

2. A

3. C

4. B

5. A

6. B

7. C

8. B

9. D

10. B

11. B

12. C

13. A

14. b

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