The cells making up the human body contain the same organelles as other animal cells. The diagram below shows the interior of a typical animal cell such as a muscle or fat cell. Each organelle has its own structure and function. Which description correctly differentiates between the structure and function of Organelle B? a This organelle contains chromosomes and proteins. Reactions inside it release energy that can be used for cell processes.

b This organelle contains chromosomes and proteins. It directs cell activities and stores genetic information.

c This organelle is composed of two membranes. Reactions inside it release energy that can be used for cell processes.

dThis organelle is composed of two membranes. It directs cell activities and stores genetic information.