Table of Contents
What structure of the cell contains protein?
Protein from your diet is broken down into individual amino acids which are reassembled by your ribosomes into proteins that your cells need. Ribosomes do not produce energy. The information to produce a protein is encoded in the cell’s DNA.
Is cell composed of DNA and protein?
Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Under the microscope in its extended form, chromatin looks like beads on a string. The beads are called nucleosomes. Each nucleosome is composed of DNA wrapped around eight proteins called histones.
Which two kinds of cell structures contain DNA?
The nucleus contains most of the DNA in a cell and this DNA is called the chromosomal DNA. It is separated from the rest of the cell (cytoplasm) by a double layer of membrane….1. Which organelles contain DNA?
| Type of DNA | Organism | size in base pairs |
|---|---|---|
| chloroplast DNA | green alga | 180 x 103 |
How does the structure of DNA determine the structure of a protein?
DNA carries the genetic information for making proteins. The base sequence determines amino acid sequence in protein. Messenger RNA (mRNA) is a molecule which carries a copy of the code from the DNA, in the nucleus, to a ribosome, where the protein is assembled from amino acids.
Is DNA a protein?
No, DNA is not a protein. The major relationship between DNA and protein is that DNA encodes the information that is necessary to synthesize proteins. But DNA itself is not a protein. DNA is composed of long chains of nucleotides.
What is structure of cell?
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
What do proteins do in DNA?
They also assist with the formation of new molecules by reading the genetic information stored in DNA. Messenger proteins, such as some types of hormones, transmit signals to coordinate biological processes between different cells, tissues, and organs. These proteins provide structure and support for cells.