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A nucleus is a membrane-bound organelle that contains the cell's chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus.
- What is nucleus short answer?
- What is nucleus and its function?
- What is the nucleus cell?
- What is a nucleus class 9?
- What is cell very short answer?
- What is a main function of the nucleolus?
- How does nucleus control cell activities?
- What is nucleus in biology class 11?
- What is cell membrane function?
- Who discovered nucleus?
- Who discovered cell?
- What are the two main functions of the nucleus of the cell?
- Why is the nucleus the most important part of the cell?
- What are the parts of nucleus?
What is nucleus short answer?
Nucleus is a double membrane bound dense protoplasmic body. It encloses the genetic information of the cell which means that the genetic material (DNA or RNA) is present in it. It is absent in prokaryotes and mature RBCs in case of eukaryotes.
What is nucleus and its function?
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information.
What is the nucleus cell?
The nucleus is a highly specialized organelle that serves as the information processing and administrative center of the cell. ... A double-layered membrane, the nuclear envelope, separates the contents of the nucleus from the cellular cytoplasm.
What is a nucleus class 9?
Nucleus. Nucleus. The nucleus is small, round and membrane bound structure found in cell. The fluid inside the nucleus surrounded by nuclear membrane is called nucleoplasm. It controls the cell's growth and reproduction because it contains cell's hereditary information.
What is cell very short answer?
“A cell is defined as the smallest, basic unit of life that is responsible for all of life's processes.” Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life.
What is a main function of the nucleolus?
The primary function of the nucleolus is in facilitating ribosome biogenesis, through the processing and assembly of rRNA into preribosomal particles.
How does nucleus control cell activities?
The nucleus directs all cellular activities by controlling the synthesis of proteins. The nucleus contains encoded instructions for the synthesis of proteins in a helical molecule called deoxyribonucleic acid (DNA). The cell's DNA is packaged within the nucleus in a structural form called chromatin.
What is nucleus in biology class 11?
Hint:Nucleus represents a membrane-bound organelle containing the hereditary information responsible for controlling both the growth and reproduction cycle of the cell. Complete answer: A nucleus consists of nuclear membrane, chromosomes, nucleoplasm, and nucleolus.
What is cell membrane function?
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Who discovered nucleus?
May, 1911: Rutherford and the Discovery of the Atomic Nucleus. In 1909, Ernest Rutherford's student reported some unexpected results from an experiment Rutherford had assigned him. Rutherford called this news the most incredible event of his life.
Who discovered cell?
Initially discovered by Robert Hooke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today's scientific advancements.
What are the two main functions of the nucleus of the cell?
1. It controls the cell and coordinate the intermediary metabolism. 2. It stores the heredity material of the cell or DNA.
Why is the nucleus the most important part of the cell?
The nucleus is considered to be one of the most important structures of eukaryotic cells as it serves the function of information storage, retrieval and duplication of genetic information. ... Thus, nucleus provides functional compartmentalisation inside the cell allowing higher levels of gene regulation.
What are the parts of nucleus?
The nucleus consists of the following main parts: (1) Nucleolemma or nuclear membrane (karyotheca) (2) Nuclear sap or karyolymph or nucleoplasm (3) Chromatin network or fibres (4) Nucleolus (5) Endosomes.
