Answer:
Pepsinogen is produced by chief cells and is activated by hydrochloric acid secreted by parietal cells.
Explanation:
Pepsinogen is a proenzyme produced in the chief cells (that are located in the stomach lining) that, when gets activated, is transformed into pepsin - a peptidase with the function to degrade proteins into amino acids.
The reason why pepsinogen is released inactive is that it would break down all of the cell's proteins because of its proteolytic nature. For this reason, it is released as a proenzyme and gets activated when reaches the acidic environment provided by the hydrochloric acid secreted by the parietal cells, also in the stomach lining.
A Poodle and a Labrador retriever can mate and have offspring. This means that these dogs are members of the same species. The correct answer is D.
Answer:
Explanation:The Photosystems are the functional centers of photosynthesis. The pigments, such as chlorophyll, in the photosystems absorb light energy, which excites electrons. These electrons are transferred to electron-accepting molecules, eventually producing ATP and NADPH.
The original codons code for Leucine and Glutamic acid. The mutated codons code for Valine and Glutamine.
<h3>Genetic codes and amino acids</h3>
Each of the genetic codes. otherwise known as codons, translates to an amino acid.
Following the table of genetic codes with their respective amino acids:
- CTC (CUC) codes for Leucine
- GAG codes for Glutamic acid
- GTC (GUC)codes for Valine
- CAG codes for Glutamine
Thus, the glutamic acid in the original codon has been replaced with glutamine in the mutated codon while Leucine has been replaced with Valine.
More on amino acids can be found here: brainly.com/question/15823799
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Answer:
Based on the cladogram, which two species share the most recent common ancestor?
lizard and owl
Explanation:
