<span>Cells contain many receptors integrated into their membranes. They also communicate to other cells through secretion of signalling molecules. </span>
<span>It is very important for cells to be able to communicate with each other to maintain a single cohesive organism. If our cells didn't work together and communicate we would be a mass of cells rather than an organism of cells working together to serve a common purpose.
hope this helped :) if you have any other questions I'd be happy to answer them for you
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Answer:
In the given example, malonic acid is the competitive inhibitor of succinate.
Explanation:
- When a substance diminishes the velocity of an enzyme catalyzed reaction then it is called inhibitor.
- These inhibitors can bind to enzyme in a reversible or irreversible fashion.
- Reversible inhibitor binds to enzyme by non-covalent bonds.
- There are two types of enzyme inhibition: Competitive and non-competitive.
- Competitive inhibition: We use the term competitive if the inhibitor binds to enzyme reversibly at the same site as substrate would bind.
- Here in this example, both succinate and malonic acid have same binding site on enzyme i.e the active site. Since both can bind to the same site, inhibitor competes with the substrate for that site.
- By increasing the concentration of substrate, we can reverse the effect of competitive inhibitor.
- At a sufficiently high concentration of substrate, V-max can be achieved for the reaction. In the Michaelis-Mentens curve we can observe increase in the Km value in the presence of competitive inhibitor.
<span>MoseomabHAma it is Dna
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A benign tumor is not a malignant tumor, which is cancer. It does not invade nearby tissue or spread to other parts of the body the way cancer can. In most cases, the outlook with benign tumors is very good. But benign tumors can be serious if they press on vital structures such as blood vessels or nerves. A malignant primary tumor is more dangerous because it can grow quickly. It may grow into or spread to other parts of the brain or to the spinal cord. Malignant tumors are also sometimes called brain cancer.
Answer:
The correct answer is competitive exclusion.
Explanation:
According to the principle of competitive exclusion, the two species, which compete for the exact identical resources cannot coexist stably. Of these two competitors, one will always exhibit a slight advantage over the other, which results in the extinction of the second competitor in the prolonged time.
It can also result in an evolutionary shift of the inferior competitor towards a distinct ecological niche. As an outcome, the competing associated species usually evolve differentiating features in the regions where they both coexist. This helps in mate identification, thus, sustaining the superiority of each species in exploiting somewhat distinct ecological niches.