What is the function of proteins and carbohydrates that are embedded in a cell membrane? 1.they control what enters and leaves the cell. 2.they direct the reproduction process for the cell. 3.they act as storage molecules for water.

Answer : The correct answer is -

1.They help control what enters and leaves the cell.

Some molecules can not cross the lipid bilayer membrane (cell membrane) of cells (such as large polar molecules and hydrophilic molecules).

There are special carbohydrate and protein that are embedded in the membrane and act like Transmembrane channels or transporters, which assist in the trasport of such molecules (like amino acids and proteins) on both sides across the cell.

Thus, option 1) is the right answer.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.