Parasites will grab on the the host to generate more parasites, and when the cell bursts, the parasites will shoot out in every direction to grab more prey.
Digestion begins in the mouth. Saliva contains enzymes which begin to break down food. The mouth also uses the teeth and jaw to mechanically break down food.
Answer:
The correct answer to the question is: b) Amphipathic molecules.
Explanation:
- The membrane structures are composed of molecules having both hydrophobic and hydrophilic regions. These are called Amphipathic molecules.
- The hydrophobic region is formed of water insoluble lipid (fatty acid) molecules which tend to avoid contact with water and so remain in the interior of the membrane.
- The hydrophilic region is formed by water soluble phosphate groups which forms hydrogen bonds with the water molecules and so remain on the surface of the membrane.
- Therefore, a membrane is formed from by a phospholipid bilayer, that is, two layers of phospholipid polymer where the lipid part is directed towards the centre away from water and the phosphate part towards the surface in association with water molecules.
- A single phopholipid moiety is composed of a glycerol molecule which forms two ester bonds with a phosphate group and a fatty acid molecule.
Those would be enzymes I believe. They are the power house of the membrane and lower the amount of activation energy needed.
