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WorksheetsCh. 6 - Energy & Metabolism
Total questions: 13
Worksheet time: 7mins
The initial input of energy in chemical reactions is
Transition site
Activation energy
Entropy
Enthalpy
Kinetic energy refers to -
Energy that is stored
Energy that is destroyed
Energy in motion
Energy that is created
The first law of thermodynamics states that energy can be –
Created
Destroyed
Lost as heat
All of the above
The energy in a system that is unable to do work—
Enthalpy
Free energy
Kinetic energy
Entropy
ATP is composed of how many phosphates?
1
2
3
The removal of electrons from an atom or a molecule is reduction.
True
False
Which of the following is an example of kinetic energy?
A sugar molecule in the stomach
A glucose molecule in a leaf
A contracting muscle
A starch molecule in a potato
A reaction with a negative ∆G is –
Exergonic
Entropic
Endergonic
Enthalpic
An endergonic reaction -
Takes in energy
Releases energy
A catalyst speeds up chemical reactions. How do catalysts do this?
Decreasing entropy
Altering ∆G
Consuming reactants
Making different products
Lowering activation energy
Carbon monoxide (CO) binds to the hemoglobin protein at the oxygen binding site. Once the CO binds, the oxygen can no longer be transported. What does this describe?
Non-competitive inhibition
Competitive inhibition
Feedback inhibition
Allosteric inhibition
If inhibition is to be competitive, which of the following must be true?
There must be more than one binding site
The reaction must be endergonic
The substate & inhibitor must be similar
The allosteric & active sites must be near each other
The reactant molecules in enzymatic reactions are the —
Specificity
Product
Active site
Substrate
