Exam 4:Cells-Part B

The human diploid number of chromosomes is _________________.

In the red bone marrow,____________________ may become any of the kinds of blood cells.

The cell organelles that permit sperm cells to move are _______________________.

The lining up of amino acids according to the codons of an mRNA molecule to form a protein is called ____________________________.

In the process of protein synthesis,the three bases that are the code for an amino acid may be called a(n)__________________ or a(n)___________________.

In order for a hormone to affect a cell,it must fit into a(n)________________________ on the cell membrane.

Lipid-soluble materials may diffuse through a cell membrane because of the presence of ________________________.

Cell membranes are selectively _____________________,meaning that only certain materials pass through them.