Metabolism Quiz
Preview:
Small organic molecules that assist in enzymatic functions are –
A. Coprolites
B. Cofactors
C. Activators
D. Coenzymes
E. Intermediates
Enzymes are consumed by reactions
A. TRUE
B. FALSE
The ________________ is the body’s use of molecules for energy and growth.
A. Cellular Respiration
B. Digestive System
C. Metabolism
D. Circulatory System
A catalyst speeds up chemical reactions. How do catalysts do this?
A. Decreasing entropy
B. Altering /\G
C. Consuming reactants
D. Lowering activation energy
E. Making different products
The breaking down of food in the human digestive system is both chemical and….
A. Geothermal
B. Mechanical
C. Electrical
D. Potential
A reaction with a positive /\G is –
A. Exergonic
B. Entropic
C. Endergonic
D. Enthalpic
E. Energertic
Which substance is produced during cellular respiration?
A. Oxygen
B. Sugar
C. ATP
D. Vitamins
Feedback inhibition occurs when the final product acts as an inhibitor to the first enzyme in the pathway
A. TRUE
B. FALSE
The energy in a system that is able to do work is called
A. Enthalpy
B. Entropy
C. Free energy
D. Kinetic energy
E. Potential energy
Gabriel ate a rotten egg which is negatively impacting his ___________________, which is the body system that takes in food and breaks it down.
A. Respiratory System
B. Digestive System
C. Circulatory System
D. Metabolism
Which is true of the difference between healthy bodies vs. athlete bodies?
A. There is no difference between healthy bodies and athlete bodies
B. Athletes take in less oxygen molecules
C. Athletes are more likely to have heart failure
D. Athletetes’ muscle cells have an unusually high number of mitochondria
When muscles contract, chemical energy is converted to mechanical energy with the loss of heat. This conversion of energy is an example of the ____ Law of Thermodynamics.
A. First
B. Second
C. Third
D. Fourth
Increasing the temperature increases the rate of an enzyme-catalyzed reaction. Once a critical temperature is reached, the reaction stops. Why does this happen?
A. The concentration of reactants drop
B. The enzymes have all been consumed in the reation
C. The increase in temperature alters the pH
D. The polypeptide chains in the enzyme denature
What are the negative effects of food deserts?
A. Millions of people are unable to gain access to healthy foods
B. Wealthy neighborhoods get to keep access to healthy foods
C. Grocery stores get to pick where they are built
D. Convenience stores and delis are enough to feed people healthy
The First Law of Thermodynamics states that energy can be –
A. Created
B. Destoryed
C. Converted
D. Lost
Dashawn has asthma which affects the ___________________, which is the body system that takes in oxygen and releases carbon dioxide
A. Digestive System
B. Cellular Respiration
C. Circulatory System
D. Respiratory System
A ball sitting atop a hill begins to roll down after getting a slight tap. This is analogous to an endergonic reaction.
A. TRUE
B. FALSE
If inhibition is to be competitive, which of the following must be true?
A. There must be more than one binding site
B. The substrate and the inhibitor must be similar
C. The reaction can not require a cofactor
D. The reaction must be endergonic
E. The allosteric and active sites must be near each other
The chemical reaction between oxygen and glucose that releases energy into cells.
A. Metabolism
B. Digestive System
C. Cellular Respiration
D. Respiratory System
Chemicals that regulate and control human body functions are known as…
A. Fats
B. Hormones
C. Carbohydrates
D. Elements
Spending ATP involves hydrolyzing it into ADP and inorganic P. The energy released can drive other chemical reactions.
A. TRUE
B. FALSE
Which of the following is defined as the amount of heat required to raise one gram of water one degree Celsius?
A. Tesla
B. Joule
C. Newton
D. Calorie
E. Dalton
Carbon monoxide (CO) binds the hemoglobin protein at the oxygen binding site. Once the CO binds, the oxygen can no longer be transported. What does this describe?
A. Non-competitive inhibition
B. Feedback inhibition
C. Substrate inhibition
D. Allosteric inhibition
E. Competitive inhibition
A muscle contraction is ___, but as the muscle contracts heat is released which is ____.
A. Exergonic, endergonic
B. Exergonic, exergonic
C. Endergonic, endergonic
D. Endergonic, exergonic
Oxidation is the _____ and reduction is the _____
A. loss of electrons, gain of electrons
B. gain of protons, loss of protons
C. loss of protons, gain of protons
D. loss of electrons, gain of protons
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