Answer:
Enzymes are produced through protein synthesis within cells. Once formed, the location of enzymes secreted varies. Enzymes may remain within the cell. An example of an enzyme that does this is DNA polymerase that helps to form new DNA. Enzymes may also become embedded in the plasma membrane. The enzyme lactase does this. It can be found in the plasma membranes of small intestine cells. As a final option, some enzymes will be secreted from the cell and used by other cells. An example of this can be seen with pancreatic production of pancreatic amylase. Once it is released from the pancreas, it participates in starch digestion in the small intestine.
Explanation:
Enzymes are a special type of protein that have the important function to catalyze chemical reactions - this means that the lack of a certain enzyme will result in an important chemical reaction not happening, or happening at a much lower rate. <u>These chemical reactions can be </u><u>anabolic </u><u>(meaning the creation -synthesis- of a molecule) or </u><u>catabolic </u><u>(which refers to the destruction -degradation- of a molecule)</u>.
For example, like the paragraph above explained, enzymes in the digestive tract have the task to convert the food that we ingest into smaller particles that can be absorbed by our intestines and used as nutrients. <em><u>If one of these enzymes were to be absent, that specific nutrient wouldn't be properly digested</u></em> - as it happens in people that are lactose intolerant (they lack the enzyme lactase, so they can't digest lactose, the sugar present in dairy products).
Enzymes are substances necessary for the synthesis of most materials in an organism
Answer:
α‑ketoglutarate dehydrogenase
Explanation:
This is an enzyme complex ,which is analogous to pyruvate dehydrogenase. . Its catalytic activity is inhibited by it products succinyl Co A,it is also refers to as oxoglutarate dehydrogenase complex.(OGDC).
This enzyme complex is similar to pyruvate dehydrogenase in having the same subunit structure, and using the same type of co-enzyme.
Answer:
Proteins in the cell will include lysine instead of phenylalanine at amino acid positions specified by the codon UUU.
Explanation:
Mutation may be defined as the sudden or heritable change in the genetic sequence of the organisms. The mutation can change the phenotype and genotype of the organisms.
The AAA codes for the lysine. The mutation attaches the anticodon AAA instead of normal phenylalanine. The aminonacids AAA will code for the lysine and no phenylalanine is observed in the cell as phenylalanine is coded by UUU and not by AAA.
Thus, the correct answer is option (b).