Question

The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "D"? A. directs cellular activities, contains DNA B. contains digestive enzymes C. outer boundary of cell, controls entry and exit of substances D. major site ATP synthesis when oxygen is available E. site of protein synthesis

Answer 1

ANSWER - OPTION A

The function of the nuclear region is to direct all cellular activities and it contains DNA.

The Nucleus of the cell is a membrane bound structure, which contains hereditary information of cell i.e, DNA in the form of chromatin network and controls the functions of cell's growth and reproduction. It is the main center of a eukaryotic cell and not present in the prokaryotic cell. It is the most prominent organelle in a cell.

It is surrounded by endoplasmic reticulum another organelle on which small ribosomes are present.

oOre (n1 chromota Nu osoma Nuc manberme

Option B is for lysosomes which contain digestive enzymes and can digest the whole cell if needed , during cell malfunction or cell damage.

Option C is for plasma membrane, which is a semi-permeable membrane and is the outer layer of all cells. It controls the entry and exit of all substances going in and out of the cell.

Option D is for Mitochondria where ATP is synthesis and this organelle is also called the power house of cell due to the production of energy of cell.

Option E is for Ribosomes. These are the small organelles which make the protein with the help of mRNA. These are present on Rough Endoplasmic Reticulum.