Compounds called proteins and phospholipids make up most of the cell membrane. The phospholipids make the basic bag. The proteins are found around the holes and help move molecules in and out of the cell. Cell Membrane A cell membrane of the cell. It gives the cell its shape, it is the outer covering of the cell made up from phospho-lipid-protein bi-layer, which allows the materials to enter and to exit.
The nuclear membrane has a similar structure to the cell membrane but it contains gaps which allow protein to pass through. The nucleus controls almost all of the activities of the cell. Cytoplasm: The cytoplasm refers to anything which is inside the cell boundary and outside the nucleus. It is a semi-fluid material which is capable of flowing slowly. Many chemical reactions are carried out in the cytoplasm.
Cytoplasm is located within the cell membrane and all cell types and contains all organelles and cell parts. Majority of all the important activities take place in the cytoplasm as cytoplasm consist of enzymes which are responsible for breaking down waste and also aid in metabolic activity. Nucleus: The nucleus is the control system of the cell. The nucleus contains the DNA of the cell. The function of the cell is to maintain the integrity of these genes and to control the activities of the cell by regulating the gene expression.
This energy is then in turn used by the cell to carry out various functions. Nucleus- The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle. Nucleolus- This takes up around 25% of the volume of the nucleus. 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.
4 – Dismantles debris B. 6 – Protein synthesis C. 2 – Houses DNA D. 1 – Lipid synthesis E. 7 – Processes secretions F. 3 – Energy extraction G. 5 – Detoxification 2) Explain the functions of the following proteins: A. Tubulin and Actin – Tubulin forms microtubules, while actin forms microfilaments. B. Caspases – Caspases are responsible for apoptosis. C. Cyclins and kinases – The interaction of cyclins and kinases trigger mitosis from the inside. D. Checkpoint proteins – Checkpoint proteins are responsible for regulating the cell cycle.
The nucleus regulates all cell activity and is bounded by a double membrane called the nuclear envelope, this membrane separates the contents of the nucleus from the cytoplasm. The Nucleus have two major functions. It stores the cell’s hereditary material, or DNA and it co-ordinates the cell’s activites, which include metabolism, growth, protein synthesis, and reproduction (cell division). ‘Mitochondria are the cell’s power producers’ Bailey, About.com. They convert energy into forms that are usable by the cell.
Outline the Function of the Main Cell Components Lysosome Contains powerful enzymes capable of digesting all major chemical components of living cells. Lysosome Contains powerful enzymes capable of digesting all major chemical components of living cells. Cytoplasm This is a semi-fluid material likened to a gel. It holds together the organelles, apart from the nucleus of the cell and supports the cells structure to make it possible for molecules to be transported. The cytoplasm is also where nutrients are absorbed and processed and is where many chemical reactions take place.
Nucleus | The nucleus is the "Control Center" of the cell, which contains DNA (genetic information) in the form of genes, and also information for the formation of proteins.Information is carried on chromosomes, which are a form of DNA. | cytoplasm | The nucleus is the "Control Center" of the cell, which contains DNA (genetic information) in the form of genes, and also information for the formation of proteins.Information is carried on chromosomes, which are a form of DNA. | Golgi aparatus | The golgi apparatus of a cell is usually connected to an endoplasmic reticulum (ER) because it stores and then transports the proteins produced in the ER. | Mitochondria | "Mitochondria" is a plural term; which is appropriate as these are not found
The protein molecule is able to float in the membrane – part of it is embedded in the membrane, part of it sticks into the cytoplasm, and part of it sticks out into the aqueous environment of the cell. What do you suspect about its structure, including its amino acid sequence, to make it behave as it does? * Examine the diagram of the cell membrane below. Is the diagram a “good” illustration of the fluid mosaic model of the cell membrane? What aspects of cell membrane structure are accurately illustrated by it?
This works to create the digestive enzymes. The Golgi is also responsible to produce the lysosomes. The Golgi apparatus is an important organelle of the eukaryotic cell. The Golgi-apparatus is found in animal and plant cells and it has four structural components which are; the cis-golgi, endo- golgi, medial-golgi and lastly the trans golgi. The cisternae help proteins and cytoplasmic components biochemically react and travel between different sections of the