The nucleus directs all activities that occur within the cell and also contains the cell's genetic material, or DNA. The nucleus gives the signal to the cell to grow, divide or make proteins. A nuclear envelope surrounds... More »

The cell nucleus of a eukaryote contains a nucleolus, chromatin, ribosomes, nucleoplasm and pores. However, the nuclear envelope surrounds the nucleus and consists of an inner and outer membrane with pores. These pores a... More »

The nucleus of an atom is the region found in the center of the atom. It consists of the protons and neutrons. The nucleus makes up the majority of an atom's mass; the other part making up the atom's mass is the outer el... More » Science Chemistry Atoms & Molecules

The function of the nuclear membrane in an animal cell is to hold the DNA inside the nucleus in order to protect it from surrounding substances. The nuclear membrane also regulates which substances can enter or exit the ... More »

A cell's nucleus is able to control the other activities in a cell by expressing certain segments of its DNA, which creates proteins that perform specific activities. Proteins can vary from enzymes to structural componen... More »

Cell transcription occurs in the nucleus of the cell where the DNA is located. Transcription is the process whereby a DNA base sequence is copied to form an RNA molecule. The production of mRNA requires a DNA template. More »

The function of the nucleus in the plant cell is to store the plant's DNA and control the activity of the cell through protein synthesis. The nucleus is enclosed by the nuclear membrane, which has pores for the passage o... More »