Ribosome

to the ribosome. Lots of cells secrete proteins into their surrounding extracellular fluid. Some cells like hormones and neurotransmitters secrete regulatory molecules. Whereas others release digestive enzymes, antibodies, or mucus. Fibroblasts secrete collagen are the whole body and other structural proteins to deliver the body with strength and hold the body together. All proteins are synthesized at cellular structures called ribosomes. When the protein is used in the cell the ribosome stays…

ydney Brenner was born in January 13, 1927 in Germiston, South Africa. Brenner’s parents were Jewish immigrants. His father was a shoe repairer and they lived in rooms that were at the back of his father’s store. Brenner started to read at a young age. One of his father’s customers, Miss Walkinshaw, encouraged Brenner’s father to allow Brenner to go to her kindergarten without charge. Brenner finished three years of primary school in one year and enrolled to local school when he was six. After…

control center of the cell and contains most of the cells DNA. Chromatin and chromosomes are also contained within the nucleus. The nucleolus is a small, dense region that is located at the center of the nucleus. The nucleolus' function is to make ribosomes, "the beginning". The nuclear envelope is made up of two membranes, which surround the nucleus. The nuclear envelope has small openings all across it which are called nuclear pores. The function of the nuclear envelope is to move materials in…

chromosomes are made up of DNA. These are vital elements in the structure of the nucleus because they help to control cells activities and provide the information that the ribosomes need to make proteins. The nucleolus makes ribosomes (Ribosomes make proteins). This part of the organelle helps the nucleus to function because without ribosomes, this organelle wouldn’t be able function properly due to the fact that one of its functions is to control which proteins are made. The Chromatin is the…

plasma membrane has two dark lines and a lighter central region. The two dark lines suggests the presence of the protein on either side. The lighter central region suggests the presence of phospholipids. The dark grainy appearance could be the ribosomes. Ribosomes appear as dark granules in the cytoplasm. Measured by rule: approximately 1 mm actual size 10 nm (image size)/(actual size)= Change 1 mm to nanometres. 1mm=1000000 nm 1000000nm/10nm= 100,000 Data based questions a. Nuclear…

Controls cell reproduction Contains genetic material - DNA that makes up the genes and chromosome. The Ribosome: ~Made of dozens of different proteins as well as RNA, also found in large numbers in the cytoplasm of living cells. Ribosome are typically composed of two subunits: • Large subunit • Small subunit “ Free” Ribosome makes proteins that remain inside the cell, “Bound’’ Ribosome make proteins that are exported from the cell. ~Protein Synthesis ~Chemical reactions is molecules…

Microtubules, which are made of protein subunits called tubulin, are the thickest of all three cytoskeletal filaments. Microtubules are mainly serving as the paths along which vesicles are guided in their travels to various destinations, and are responsible for associating with motor proteins attached to the vesicles. Microtubules can also expand or shrink in length in order to establish dynamic structures that can efficiently change the internal organization of the cell, and capture organelles…

nucleus and have membrane bound organelles they are multicellular cells and undertake reproduction by the process cell division known as meiosis and mitosis. There are 2 types of eukaryotic cell: plant and animal cells. They contain organelles such ribosomes, smooth and rough endoplasmic reticulum, mitochondria, nucleolus, centrioles, cell membrane, flagella, cilia, microtubules, chloroplast and lysosomes. Animal Cell:…

Cells have specific structures within them that allow them to carry out their functions; these structures are called organelles. Organelles have different functions within a cell that is called Division of Labor. They are also classified in two different groups, membranous and non-membranous. Membranous organelles are surrounded by a membrane while of course, non-membranous are not surrounded by a membrane. When describing the organelles and their function, first will be the membranous…

information that is encoded in the DNA is taken away and it is the encoded in the mRNA and this information can then go to the cells that are within the nucleus and then onto in the cytoplasm. Then there is translation which is when the mRNA works with a ribosome and tRNA to be able to synthesize the proteins. Transcription The sequence of transcription starts with the Enzyme Helicase being able to attach to the DNA double helix. By attaching to the double helix, it means that the enzyme…