Answer:
<em>The correct option is C) Water is repelled by the hydrophobic tails of the phospholipid.</em>
Explanation:
The cell membrane is made up of phospholipids. The phosphates make up the head and are hydrophilic. The lipids make up the tail and re hydrophobic. The cell membrane is double layered with the heads pointing outwards and the tails embedded inwards. As lipids do not dissolve in water, hence the cell membrane is partially permeable for water. The tails made up of lipids are hydrophobic and hence repel water.
Answer:
The answer is
2. magnetism and fluorescence
Explanation:
The other properties mentioned are common properties that are used to identify all minerals. As you can see, hardness, color and fracture are common properties that cut across all minerals. Magnetism and fluorescence however, are not very common and are found in only a few special minerals. That is why they are considered special properties.
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Answer:
Because T-cell-independent antigens do not activate helper T cells, they fail to induce B cell memory, affinity maturation, or class switching, all of which require help from T cells. They therefore mainly stimulate the production of low-affinity (but high-avidity) IgM antibodies.
Explanation:
