Simple Diffusion Across the Cell (Plasma) Membrane. The structure of the lipid bi-layer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.
Answer:
The correct answer is allopatric speciation.
Explanation:
Allopatric speciation occurs when a geographical barrier comes between a species population living in the same area. This geographical barrier separates the population into two different geographical area which do not have the same condition.
So as both the separated population get different habitat environment to live so they evolve differently from each other. So natural selection and genetic drift works differently in both the population which brings genetic changes in the population and helps in creating a new species.
Answer:
1 in 4 people.
Explanation:
Research studies results.
Answer: Protein folding and oligomerization
Explanation:
Binding immunoglobulin protein (BiP) is a vital protein present in humans essential for the translocation of secreted peptides.
BiP is a molecular chaperone which is present in lumen of ER (endoplasmic reticulum) which binds to the new protein and then translocat into the ER. The protein in ER is maintained under subsequent condition and important for protein folding and oligomerization (conversion of a monomer or group of monomer into an oligomer).
Several other functions of BiP are:
- ER translocation
- ER-associated degradation (ERAD)
- UPR pathway
Hence, BiP is a chaperone, it is important for protein folding and oligomerization.
