Which Statement Is TRUE of the Binding Energy Derived from Enzyme-Substrate

question 63

Multiple Choice

Which statement is TRUE of the binding energy derived from enzyme-substrate interactions?

• A) It cannot provide enough energy to explain the large rate accelerations brought about by enzymes.
• B) It is sometimes used to hold two substrates in the optimal orientation for reaction.
• C) It is the result of covalent bonds formed between enzyme and substrate.
• D) Most of it is derived from covalent bonds between enzyme and substrate.
• E) Most of it is used up simply binding the substrate to the enzyme.

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Definitions:

Mycoplasma

A genus of bacteria that lack a cell wall, making them resistant to many common antibiotics and causing various diseases in humans and animals.

Peptidoglycan

A polymer that makes up the cell walls of most bacteria, consisting of sugars and amino acids, and provides structural strength to the bacterial cell wall.

Cell Walls

Rigid or semi-rigid structures surrounding the cell membrane of plants, fungi, and some bacteria, providing shape, support, and protection.

Cyanobacteria

Photosynthetic bacteria that produce oxygen as a by-product, playing a key role in the early oxygenation of the Earth's atmosphere.