Identify the functions of the labeled structures.

nucleus

a. controls what enters and leaves
the cell

b. directs cell activity

c. breaks down waste material and. debris

The main function of the nucleus is to direct cell activity.

The nucleus is a double membrane found in most cells.

The nucleus is responsible for controlling and regulating the activities of the cell such as growth, multiplication and metabolism.

The nucleus contain the genetic information of the cell in the form of deoxyribonucleic acid (DNA) or chromosomes which contains hereditary information.

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Explanation:

Identify the functions of the labeled structures.

Nucleus:

directs cell activity

Ribosomes:

produce proteins for the cell

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.