Amino acids, sugars, and ions move across the cell membrane. Their movement from a region of high
concentration to a region of low concentration is
accomplished by special proteins in the membrane.
Which of the following terms applies to this type
of cell transport?
A. active transport
B. facilitated diffusion
The host has opened B
D. transcription
C. osmosis

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation:

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.