â¢ The Human Body and the Anatomy of Movement. This edition of Introduction to Sports Biomechanics is supported by a website containing. video clips, and oï¬ers sample data tables for comparison and analysis and multiple-. choice questions to conï¬rm your understanding of the material in each chapter. This text is a must have for students of sport and exercise, human movement sciences, ergonomics, biomechanics and sports performance and coaching.
The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.
This is why the nucleus is sometimes referred to as the control center, or the brain, of the cell. Since large molecules cannot get inside the nucleus through the nuclear membrane, small holes called nuclear pores dot the surface area of the envelope. These pores regulate the transport of those molecules by carrier proteins embedded in the double layer of the membrane.