Anatomy & Physiology: Chemistry
A quiz testing the knowledge of basic chemistry review.
- 1.The ability of one substance to dissolve another is __________________.
- 2.What substances readily dissolve in water? Check all that apply. [hint: water is polar]
- A.
Charged particles (i.e. ions, Na+)
- B.
Lipids
- C.
Polar molecules
- D.
Hydrophobic particles
- E.
Hydrophilic particles
- F.
Steroids
- 3.Explain what electrolytes are and give some examples. Also, explain how they relate to solubility.
- 4.Energy is the capacity to do work.
- A.
True
- B.
False
- 5.Energy comes in different forms. What choice is not a form of energy? [once you have identified which are forms of energy - try to give an example of each and identify whether it is an example of potential or kinetic energy]
- A.
Mechanical
- B.
Reactant
- C.
Electrical
- D.
Chemical
- 6.All forms of energy can be converted to _________.
- 7.Chemical reactions can either _________ or _________ bonds.[separate answer with a comma]
- 8.Substances that ENTER the reaction are called _________.
- A.
Products
- B.
Bonds
- C.
Reactants
- D.
Kinetic
- 9.
This diagram is a great example of how almost all reactions in the body are reversible. Explain what is happening with energy when ATP is converted to ADP or vice-versa. When is energy needed? When is it released? When is their more potential energy? When is there less? - 10.Molecules must have sufficient _______ to overcome normal repulsion of their _______ ________.[separate answers with a comma]
- 11.What is the minimum energy that reactants must have to start a chemical reactions?
- A.
Kinetic energy
- B.
Activation energy
- C.
Catalyst energy
- D.
Concentration energy
- 12.What is not a way that the body gets enough activation energy for all its chemical reactions?
- A.
Catalysts
- B.
Polarity
- C.
Heat
- D.
Concentration
- 13.Read the question. Then choose the answer that fills in the blanks in the appropriate order. Water is often involved in reactions. When water is made in a reaction it is a _____________ reaction, which is a type of _________ reaction, also known as an anabolic reaction which means it is endergonic or that it___________ energy. When water is split in a reaction it is a ___________ reaction, which is a type of ___________ reaction, also known as a catabolic reaction which means it is exergonic or that it ___________ energy.
- A.
Dehydration, synthesis, requires, hydrolysis, decomposition, releases
- B.
Requires, hydrolysis, dehydration, synthesis, releases, decomposition
- C.
Synthesis, hydrolysis, decomposition, requires, dehydration, releases
- D.
Hydrolysis, decomposition, releases, dehydration, synthesis, requires
- 14.If something is exergonic that means that energy is released.
- A.
True
- B.
False
- 15.According to the Law of Mass Action, the direction of the reaction depends on ...
- A.
The amount of ATP in the reactants
- B.
The temperature of the reactive enviroment
- C.
The relative concentration of the reactions and products
- D.
The polarity of the reactants and the products
- 16.This common chemical reaction is seen throughout the body. Fill in the blanks. [separate answers with a comma] CO2+ ________ --> H2CO3 --> _____ + HCO3-
- 17.The function of most enzymes depends on the concentrations of _____ and _____. [separate answers with a comma]
- A.
H+ and OH+
- B.
H- and OH+
- C.
H+ and OH-
- D.
Acids and bases
- 18.The pH scale is based on a log scale.
- A.
True
- B.
False
- 19.Check all the apply. Which of the following solutions are generally acidic?
- A.
Enviroment of the stomach
- B.
Urine
- C.
[H+] = 10^(-12)
- D.
[H+] = 10^(-3)
- E.
Blood
- F.
Saliva
- G.
PH = 4.8
- H.
PH = 8.3
- 20.What is the normal pH for blood?[hint: the set point?]
- A.
6.5-6.8
- B.
9.6-10.2
- C.
3.4-3.6
- D.
7.35-7.45
- 21.Respiratory acidosis is induced by:
- A.
Hypoventalation
- B.
Lack of electrolytes
- C.
Hyperventalation
- D.
Excessive vomiting
- 22.Keeping in mind the process of a Positive Feedback loop and the Law of Mass Action, explain why it is dangerous for a person to breathe too much into a paper bag when experiencing respiratory alkalosis.
Back to top