Answer:
Option A. amphipathic molecules
Explanation:
Amphipathic molecules have both polar and non-polar parts which means they contain hydrophilic and hydrophobic regions in their structure.
These molecules are found in lipids. More specifically, phospholipids are considered as the fundamental building block of the cell membrane. They are arranged in a bi-layer having a hydrophilic head and hydrophobic tails to maintain the fluidity of the membrane.
<h2>Protein folding </h2>
Explanation:
- Molecular chaperones bind to nascent and folding or misfolded proteins (through improperly exposed hydrophobic regions) and stabilize the polypeptide so it can fold into its native state
- They have the ability to prevent non-specific aggregation by binding to non-native proteins
- They play an important role in protecting cells from being damaged under environmental stress, such as extreme heat, poisoning, or mental stress
- Most common chaperones are heat shock proteins which are also called stress proteins
- The intracellular folding environment for proteins is chaotic because of the presence of other biomolecules, folding proteins, improper or fluctuating pH, heat, and other denaturants
- Chaperonins provide actual chambers for misfolded proteins to properly refold, segregating the protein from the chaotic cellular environment.
- The main key function of chaperonins is to assist in the folding of large protein molecules
It's false. Cells are created from living cells through sexual/asexual reproduction.
Answer:
These phases are prophase, prometaphase, metaphase, anaphase, and telophase. Cytokinesis is the final physical cell division that follows telophase, and is therefore sometimes considered a sixth phase of mitosis.
no but at one point everything was compact, going into the Big Bang Theory that everything was in one small space until a grand burst of energy broke out expanding the universe.
just a thought :)
