LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The spherical object within a cell that controls its activity is the ____
A
mitochondria
B
nucleus
C
ribosome
D
membrane
Explanation: 

Detailed explanation-1: -The nucleus is like the remote control center of the cell. It acts as the cell’s brain by telling it what to do, how to grow, and when to reproduce. The nucleus is home to the cell’s genes. A membrane, a thin layer that allows chemicals to pass in and out to the rest of the cell, surrounds the nucleus.

Detailed explanation-2: -The NUCLEUS, often referred to as the headquarters of the cell, controls all cell activity by regulating what proteins are made. It is a large ORGANELLE that is easily seen with a light microscope. The nuclear membrane contains the blueprints of the cell.

Detailed explanation-3: -Definition. The nucleolus is a spherical structure found in the cell’s nucleus whose primary function is to produce and assemble the cell’s ribosomes. The nucleolus is also where ribosomal RNA genes are transcribed.

Detailed explanation-4: -The nucleolus is the spherical body present at the centre of the nucleus.

Detailed explanation-5: -By housing the cell’s genome, the nucleus serves both as the repository of genetic information and as the cell’s control center. DNA replication, transcription, and RNA processing all take place within the nucleus, with only the final stage of gene expression (translation) localized to the cytoplasm.

There is 1 question to complete.