Table of Contents
- 1 What is the structure of nucleus and its function?
- 2 How is vascular tissue adapted to its function?
- 3 What is the function of the nucleus What is the function of the nucleolus?
- 4 How is nerve tissue adapted to its function?
- 5 What are the physical characteristics of the nucleus?
- 6 What is the function of the nucleolus and chromosomes?
What is the structure of nucleus and its function?
The nucleus is a spherical-shaped organelle that is present in every eukaryotic cell. The Nucleus is the control centre of eukaryotic cells. It is also responsible for the coordination of genes and gene expression. The structure of the nucleus includes nuclear membrane, chromosomes, nucleoplasm, and nucleolus.
How does the structure of nucleolus relate to its function?
The nucleus of many eukaryotic cells contains a structure called a nucleolus. This structure is made up of proteins and ribonucleic acids (RNA). Its main function is to rewrite ribosomal RNA (rRNA) and combine it with proteins. This results in the formation of incomplete ribosomes.
How is vascular tissue adapted to its function?
The cells that make up the xylem are adapted to their function: They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
How is sperm cell adapted to its function?
1) Sperm cell is adapted to its function by carrying genetic information to an egg. 2) It has a stream lined body that allows it to move quickly. 3) They also contain large number of mitochondria in the mid region, so it is able to produce a lot of energy in order to operate tail.
What is the function of the nucleus What is the function of the nucleolus?
The nucleolus is the most conspicuous domain in the eukaryotic cell nucleus, whose main function is ribosomal RNA (rRNA) synthesis and ribosome biogenesis.
How does a nucleolus function?
Nucleolus Function Primarily, it takes part in the production of subunits that unites to form ribosomes. Hence, nucleolus plays an important role in the synthesis of proteins and in the production of ribosomes in eukaryotic cells.
How is nerve tissue adapted to its function?
Nerve cells are called neurons . They are adapted to carry electrical impulses from one place to another. in a stimulated neuron, an electrical nerve impulse passes along the axon. the axon is insulated by a fatty (myelin) sheath – the fatty sheath increases the speed of the nerve impulses along the neuron.
How does the nucleus of a cell work?
The nucleus houses the DNA which has two very cool properties; it can self-replicate and it can produce proteins with the help of some additional molecules. These proteins are really useful to us because we carry out most biological functions at the molecular level through them.
What are the physical characteristics of the nucleus?
Physical Characteristics 1 Nuclear Envelope and Nuclear Pores. The cell nucleus is bound by a double membrane called the nuclear envelope. 2 Chromatin. The nucleus houses chromosomes containing DNA. 3 Nucleoplasm. Nucleoplasm is the gelatinous substance within the nuclear envelope. 4 Nucleolus.
How does the nucleoplasm help maintain the shape of the nucleus?
Nucleoplasm also supports the nucleus by helping to maintain its shape. Additionally, nucleoplasm provides a medium by which materials, such as enzymes and nucleotides (DNA and RNA subunits), can be transported throughout the nucleus. Substances are exchanged between the cytoplasm and nucleoplasm through nuclear pores.
What is the function of the nucleolus and chromosomes?
The nucleolus and chromosomes are surrounded by nucleoplasm, which functions to cushion and protect the contents of the nucleus. Nucleoplasm also supports the nucleus by helping to maintain its shape. Contained within the nucleus is a dense, membrane-less structure composed of RNA and proteins called the nucleolus.