Tag: cytoplasm

Organelles are usually membrane-bound structures inside the cell that have specific functions. Some major organelles that are suspended in the cytosol are the mitochondria, the endoplasmic reticulum, the Golgi apparatus, vacuoles, lysosomes and in plant cells; chloroplasts. 

Cytoplasm is the jelly-like fluid present in cells that hold organelles and surrounded by the cell membrane. The cytoplasm has three major components- the cytosol, organelles and cytoplasmic inclusions, of which the cytosol is the thick fluid where other cytoplasmic elements remain suspended. The cytosol consists of 70% to 90% water, and it is usually colourless. 

The cytoplasm is the jelly-like matrix in the interior of the cell. The chloroplast contains the chlorophyll pigments which are involved in the production of the food. The solar energy is captured and used for making the food for the plant. The cytoplasm is the site where many cell processes takes place.

The nucleus is the site for DNA replication and transcription. Translation is the process of synthesis of polypeptides by polymerization of amino acids on ribosomes using the mRNA triplets as a template. Ribosomes serve as the site of translation and the process takes place in the cytosol. ER is eukaryotic organelle with a network of tubules, vesicles and cisternae within the cells. Ribosomes are present on the surface of RER but not on SER. Golgi complex serves to modify and pack the proteins synthesized on ER by ribosomes.  The correct answer is C.  

The terms cytoplasm and nucleoplasm were given by Strasburger in 1882. Cytoplasm is the bulk of protoplasm excluding nucleus and vacuoles. Cytoplasm is differentiated into a cytoplasmic matrix, cell organelles and cell inclusions. Nucleoplasm or nuclear sap or karyolymph or karyoplasma is a colloidal complex that fills the nucleus. Nucleoplasm contains the raw materials for the synthesis of DNA and RNA.

The nucleus is the main organelle which controls the activities of all the other organelles present in the eukaryotic cell. 

• The jelly-like semifluid complex of cytoplasm is called cytosol or cytoplasmic 

• In the eukaryotic cell, the cytosol is surrounded by the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles except nucleus. The cytosol is thus a liquid matrix around the organelles.
• So, the correct answer is 'Both B and C'.

Cnidocytes contain stinging structure known as nematocysts. Cnidocytes in tentacular region help in capturing the larger prey as their nematocytes discharge toxins into their prey.

Cytoplasm is the fluid which is present in the living cell. It lies between the cell membrane and the nuclear membrane. It consists of 80% water. It is a colorless liquid which holds the cell organelle and helps in intracellular and intercellular transport. The cellular process like glycolysis and the cell division occurs in the cytoplasm. So, the correct answer is option B.