Answer:
A hydrogen atom is made up of a nucleus with charge +1, and a single electron. Therefore, the only positively charged ion possible has charge +1.
Explanation:
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Answer:
Explanation:
Proteins in the plasma membrane have several functions based on their components, location etc. For instance, if the protein transcends the entire plasma membrane it could be a transport protein, responsible for the import and export of certain molecules between the cell and the extracellular matrix (ECM). If the proteins are resting at the surface of the cell, facing the ECM, their role could be to detect components in the ECM, relaying a series of messages back to the nucleus so that the cell can ‘decide’ what it should do with this information (is it being told it should undergo apoptosis, should it begin to divide, should it migrate?). As well as this, it could be involved in the detection of foreign bodies such as pathogens. This is an extremely job for these proteins because if the cell does come in contact with a pathogen, the cell can use these proteins to engulf the pathogen and through a series of steps, present the antigen on their major histocompatibility complexes (either 1 or 2 depending on the cell type) or HLA’s for human cells. Thus it can be concluded that protein functions vary widely in the plasma membrane and due to the vast number of proteins that can be found there, it’s difficult to narrow down the exact main of functions of all these proteins put together.
Answer:
Ostia are tiny pores present all over the body of sponges. its function is to let the water, along with desire nutrient flows interior of the sponges.
Answer:
Because the redox reactions create proton gradient which is responsible for the production of ATP
Explanation:
During the process of aerobic respiration, the electron transport occurs in mitochondria through a sequence which is known as electron transport chain. When electrons are transferred from one complex to the other complex present in the inner membrane of mitochondria, the redox reactions occur and as a result of these redox reactions the proton gradient is created across the inner membrane of mitochondria. This proton gradient is further used to drive the synthesis of ATP with the help of ATP synthase. As the redox reactions create proton gradient which is responsible for the production of ATP, the process is named as the oxidative phosphorylation.
