The drawing below illustrates a small portion of the molecules that make up a cell membrane. What is the primary function of the
phospholipid in the cell membrane? a. line up amino acids for protein synthesis b. prevent the passage of certain molecules into the cell c. helps cells recognize each other d. allow glucose molecules into the cell
Phospholipids are lipids that contains a phosphate group, which forms the "head" of the molecule and is hydrophilic (water loving). The "tail" of phospholipids is made of two fatty acids which are hydrophobic (water fearing). The phospholipid in the cell membrane acts as a selectively permeable barrier that regulates what goes in and out of the cell <u>thereby protecting the cell from some external molecules and ions</u>.
The urea cycle also known as the o r n i t h i n e cycle is a cycle of biochemical reactions that produces you re a from ammonia this cycle occurs in u r e o t e l i c organisms
Perceptual constancy is the
ability to view or consider an object as unchanged under different conditions
such as changes in distance, physical features or illumination. For the
question above, Immanuel knows the kite is not shrinking due to his brain's
ability to maintain perceptual constancy.
