Analogies are the result of convergent evolution. Interestingly, though bird and bat wings are analogous as wings, as forelimbs they are homologous. Birds and bats did not inherit wings from a common ancestor with wings, but they did inherit forelimbs from a common ancestor with forelimbs.
This test is based on the interaction between the copper ions of the Biuret reagent and the amino groups of the peptide bonds of the amino acids that make up proteins. When there is a reaction, the color changes blue to violet.
Due to it is not very sensitive compared to the lowry method and requires 2 to 4mg of protein per test, opalescence may occur if the sample has high levels of lipids and carbohydrates.
Arthropods grow by partial shedding of their exoskeleton.
Explanation:
Arthropods grow by a process called molting or ecdysis which is shedding of their exoskeleton periodically and replacement of new bigger skeleton. Molting process usually happens along the posterior end at the tail region leading to elongation of the body.
The exoskeleton is made up of proteinaceous thin layer, epicuticle, and procuticile or inner chitin layer. This exoskeleton contains protein and minerals which makes it hard.
Although, the exoskeleton provides good protection, it becomes tough for an arthropod to grow along with the tough exoskeletion.
So, an arthropod’s body actually grows inside the exoskeleton, and as the body grows, the exoskeleton sheds off and replaced with newer ones. Molting is controlled by growth hormones like ecdysone present in their blood.
Proteins synthesized in the ER are packaged into vesicles, which then fuse with the Golgi apparatus. ... The Golgi apparatus is also involved in lipid transport and lysosome formation.
Please put this in English pls? :3