Regarding the effect of pH on the reaction rate of three different enzymes, what the graph shows is that each enzyme works better at different pH (option A).

Explanation:

Enzymes are specialized protein molecules whose function is to contribute to faster reactions with lower activation energy. To fulfill this function, enzymes must be in an optimal range of temperature and pH.

The graph shows three enzymes, one in an acidic medium, one in a neutral medium and one in a basic medium. The reaction rate of each enzyme is similar, indicating that each is working at an optimum pH. The best interpretation that can be drawn from the graph is that each enzyme works best at a different pH.

The other options are not correct because:

B. The variable "temperature" is not included in the graph.

C and D. Since the comparison of the reaction rate of a single enzyme at different pH is not being made, the graph is not useful to indicate whether an enzyme works better in acidic or basic conditions.

5 0

3 years ago

What would happen if all of the foxes were hunted until they were gone in a forest ecosystem?

galina1969 [7]

There would be a change in the food chain

5 0

3 years ago

The shape of a protein molecule is influenced by

Rus_ich [418]

Answer:

The answer is C. its sequence of amino acids.

The protein's shape is influenced by its sequence of amino acids or primary structure.

Explanation:

The primary structure of a protein molecule is dependent on the amino acid chain sequence it has. The amino acid chain's linear structure is composed of covalently bonded amino acids via peptide bonds. This serves as the overall backbone of the protein.

<h3>Additional notes: </h3>

Secondary structure of protein

It defines the 3-dimensional shape of the locally folded polypeptide. They come in two forms, the alpha helices and beta sheets. During the formation of the primary structure, acidic and basic amino residues may cause kinks and turns, re-configuring the 3-D shape of the local polypeptide.

Tertiary structure of protein

This determines the overall 3-dimensional structure of the protein. The structure is due to the linking of the R groups of the related amino acids, hydrophobic bonds, and disulfide bonds. These bonds are highly stable and are not easily changed or destroyed.

Quaternary structure of protein

It is a structure that consists of multiple folded polypeptide chains or subunits. This allows the protein to have multiple functions. Non-covalent forces keep these structures together, making it prone to rapid conformational changes.

8 0

4 years ago

What separates yeasts from other fungi?

ElenaW [278]

Answer:

READ

Explanation:

Yeasts are microscopic fungi consisting of solitary cells that reproduce by budding. Molds, in contrast, occur in long filaments known as hyphae, which grow by apical extension. Hyphae can be sparsely septate to regularly septate and possess a variable number of nuclei.

8 0

4 years ago