WebA ribosome is a cellular structure not bounded by a membrane, composed of ribosomal RNA and proteins, and whose function is to synthesize proteins. The ribosome’s … WebNucleolus. The dense, spherical or slightly irregular body in the nucleoplasm during interphase is called nucleolus. It is a thin thread-like network of nucleo-protein fibres which is not bound by a membrane, hence it is called a naked structure. Fonatana was the one who first described the nucleolus in 1781.

8th Class Science Cell - Structure and Functions Question Bank

WebJan 15, 2024 · Endoplasmic Reticulum Definition. The endoplasmic reticulum (ER) is a large organelle made of membranous sheets and tubules that begin near the nucleus and extend across the cell. The … WebRibosomes are defined as one of the most important cell organelles that are composed of RNA and protein. These are non membrane bound sub spherical granular organelles present inside living cells which help in the … coater roll

Class - 8 Subject - Science Chapter - 8 Cell Structure and …

WebMitochondria, Ribosomes, Golgi bodies and Lysosome Ans. Function of the following cell organelles are:-Mitochondria:- Plays an important role to perform cellular respiration and also help in the production of energy. Ribosome:- It help in the protein synthesis so also called the protein factory of the cell. WebJun 7, 2024 · Plastids are a double membrane diverse group of physiologically, phylogenetically, and genetically related eukaryotic organelles that play important roles in plant metabolism through different processes of like –. Photosynthesis. Nitrogen, and sulfur assimilation. Amino acid synthesis. These plastids are found in plant cells and algae. WebDec 6, 2024 · A ribosome is one of the smallest structures in a cell, but it has a very big job: to make protein. A ribosome is an organelle. Organelles are like tiny factories that help the cells of plants and ... calla lily flower arrangement idea