Which statement best describes the function of the nervous system in the body? O to protect other organs and tissues
O send messages to body parts using only chemicals
O to gather information through the senses (stimuli) and also control all other body systems
O to transport oxygen and carbon dioxide

How can an organ, such as the lungs, work for multiple body systems?

Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?

Which of the following would you not find in a bacterial cell? dna cell membrane golgi apparatus ribosomes